Petrophysical properties of the 9-km-deep crustal section at KTB
Petrophysical properties of drill core and drill cuttings samples from both bore holes of the German Continental Deep Drilling Program (KTB) measured at atmospheric pressure and room temperature in the field laboratory are presented, along with data of core samples measured at simulated in situ cond...
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| Published in: | Journal of Geophysical Research: Solid Earth Vol. 102; no. B8; pp. 18337 - 18361 |
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| Main Authors: | , , , , , , , , , , , |
| Format: | Journal Article |
| Language: | English |
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Blackwell Publishing Ltd
10-08-1997
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| Abstract | Petrophysical properties of drill core and drill cuttings samples from both bore holes of the German Continental Deep Drilling Program (KTB) measured at atmospheric pressure and room temperature in the field laboratory are presented, along with data of core samples measured at simulated in situ conditions by other laboratories. Most of the petrophysical properties show a bimodal frequency distribution corresponding to the two main lithologies (gneiss and metabasite), except electrical resitivity and Th/U ratio which are lithology independent (monomodal distribution). Low resistivities are mainly associated with fractures zones enriched in fluids and graphite. The most abundant ferrimagnetic mineral is monoclinic pyrrhotite. Below 8600 m, hexagonal pyrrhotite with a Curie temperature of 260°C is the stable phase. Thus the Curie isotherm of the predominant pyrrhotite was reached (bottom hole temperature about 265°C). The highest values of magnetic susceptibility are linked with magnetite. Microcracks grow due to pressure and temperature release during core uplift. This process continues after recovery and is documented by the anelastic strain relaxation and acoustic emissions. The crystalline rocks exhibit marked reversible hydration swelling. Anisotropy of electrical resistivity, permeability, P and S wave velocity is reduced significantly by applying confining pressure, due to closing of microcracks. Fluids within the microcracks also reduce the P wave velocity anisotropy and P wave attenuation. Anisotropy and shear wave splitting observed in the field seismic experiments is caused by the foliation of rocks, as confirmed by laboratory measurements under simulated in situ conditions. The petrophysical studies provide evidence that microfracturing has an important influence on many physical rock properties in situ. |
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| AbstractList | Petrophysical properties of drill core and drill cuttings samples from both bore holes of the German Continental Deep Drilling Program (KTB) measured at atmospheric pressure and room temperature in the field laboratory are presented, along with data of core samples measured at simulated in situ conditions by other laboratories. Most of the petrophysical properties show a bimodal frequency distribution corresponding to the two main lithologies (gneiss and metabasite), except electrical resitivity and Th/U ratio which are lithology independent (monomodal distribution). Low resistivities are mainly associated with fractures zones enriched in fluids and graphite. The most abundant ferrimagnetic mineral is monoclinic pyrrhotite. Below 8600 m, hexagonal pyrrhotite with a Curie temperature of 260°C is the stable phase. Thus the Curie isotherm of the predominant pyrrhotite was reached (bottom hole temperature about 265°C). The highest values of magnetic susceptibility are linked with magnetite. Microcracks grow due to pressure and temperature release during core uplift. This process continues after recovery and is documented by the anelastic strain relaxation and acoustic emissions. The crystalline rocks exhibit marked reversible hydration swelling. Anisotropy of electrical resistivity, permeability,
P
and
S
wave velocity is reduced significantly by applying confining pressure, due to closing of microcracks. Fluids within the microcracks also reduce the
P
wave velocity anisotropy and
P
wave attenuation. Anisotropy and shear wave splitting observed in the field seismic experiments is caused by the foliation of rocks, as confirmed by laboratory measurements under simulated in situ conditions. The petrophysical studies provide evidence that microfracturing has an important influence on many physical rock properties in situ. Petrophysical properties of drill core and drill cuttings samples from both bore holes of the German Continental Deep Drilling Program (KTB) measured at atmospheric pressure and room temperature in the field laboratory are presented, along with data of core samples measured at simulated in situ conditions by other laboratories. Most of the petrophysical properties show a bimodal frequency distribution corresponding to the two main lithologies (gneiss and metabasite), except electrical resitivity and Th/U ratio which are lithology independent (monomodal distribution). Low resistivities are mainly associated with fractures zones enriched in fluids and graphite. The most abundant ferrimagnetic mineral is monoclinic pyrrhotite. Below 8600 m, hexagonal pyrrhotite with a Curie temperature of 260°C is the stable phase. Thus the Curie isotherm of the predominant pyrrhotite was reached (bottom hole temperature about 265°C). The highest values of magnetic susceptibility are linked with magnetite. Microcracks grow due to pressure and temperature release during core uplift. This process continues after recovery and is documented by the anelastic strain relaxation and acoustic emissions. The crystalline rocks exhibit marked reversible hydration swelling. Anisotropy of electrical resistivity, permeability, P and S wave velocity is reduced significantly by applying confining pressure, due to closing of microcracks. Fluids within the microcracks also reduce the P wave velocity anisotropy and P wave attenuation. Anisotropy and shear wave splitting observed in the field seismic experiments is caused by the foliation of rocks, as confirmed by laboratory measurements under simulated in situ conditions. The petrophysical studies provide evidence that microfracturing has an important influence on many physical rock properties in situ. |
| Author | Winter, H. Kontny, A. Rauen, A. Popp, T. Soffel, H. C. Zinke, J. Kern, H. Schult, A. Pohl, J. Lienert, M. Nover, G. Berckhemer, H. |
| Author_xml | – sequence: 1 givenname: H. surname: Berckhemer fullname: Berckhemer, H. – sequence: 2 givenname: A. surname: Rauen fullname: Rauen, A. – sequence: 3 givenname: H. surname: Winter fullname: Winter, H. – sequence: 4 givenname: H. surname: Kern fullname: Kern, H. – sequence: 5 givenname: A. surname: Kontny fullname: Kontny, A. – sequence: 6 givenname: M. surname: Lienert fullname: Lienert, M. – sequence: 7 givenname: G. surname: Nover fullname: Nover, G. – sequence: 8 givenname: J. surname: Pohl fullname: Pohl, J. – sequence: 9 givenname: T. surname: Popp fullname: Popp, T. – sequence: 10 givenname: A. surname: Schult fullname: Schult, A. – sequence: 11 givenname: J. surname: Zinke fullname: Zinke, J. – sequence: 12 givenname: H. C. surname: Soffel fullname: Soffel, H. C. |
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| Cites_doi | 10.1016/0031-9201(93)90063-F 10.1029/96JB02565 10.1111/j.1365-246X.1981.tb02662.x 10.1029/JZ065i004p01083 10.1029/95JB00960 10.1016/0040-1951(93)90311-7 10.1007/978-3-642-74588-1_7 10.1007/BF01901949 10.1016/0040-1951(81)90110-4 10.1007/BF01262283 10.1007/BF00690169 10.1029/96JB03397 10.1016/0926-9851(94)90007-8 10.2113/gsecongeo.77.7.1739 10.1111/j.1365-2478.1988.tb02181.x 10.1007/978-3-642-71137-4 10.1029/96JB03442 10.1007/978-3-642-74588-1_10 10.1007/BF00682711 10.4095/102563 10.1029/96JB03394 10.1007/BF00682716 10.1111/j.1365-246X.1996.tb05631.x 10.1029/96JB03443 10.1007/BF00682712 10.1016/0012-821X(69)90035-1 10.1111/j.1365-246X.1997.tb00604.x 10.1029/96JB03802 10.1007/BF00682713 10.1029/91JB01672 10.1111/j.1365-2478.1995.tb00254.x 10.1029/JZ070i022p05669 10.1007/978-3-642-74588-1_17 10.1007/BF00690170 10.2118/11649-MS 10.1029/JB073i022p06977 10.1029/96JB03945 10.1029/96JB03395 10.1029/JB079i035p05412 10.1016/0148-9062(94)00017-W 10.1029/96JB03407 10.1016/0040-1951(94)90094-9 10.1038/367059a0 10.1029/96JB02942 10.1016/0031-9201(91)90100-V 10.1029/JB080i005p00752 |
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| References | Wagner, G. A., et al.,Post-variscan thermal and tectonic evolution of the KTB site and its surroundings,J. Geophys. Res., 102B81997. Zoback, M. D., J. D. Byerlee, The effect of microcrock dilatancy on the permeability of Westerly Granite, J. Geophys. Res., 80, 752-755, 1975. Rauen, A., H. C. Soffel, Determination of electrical resistivity, its anisotropy and heterogeneity on drill cores: A new method, Geophys. Prospect., 43, 283-298, 1995. Nover, G., S. Heikamp, A. Kontny, A. Duba, The effect of pressure on the electrical conductivity of KTB rocks, Surv. Geophys., 16, 63-81, 1995. Rauen, A., M. Lastovickova, Investigation of electrical anisotropy by the deep borehole KTB, Surv. Geophys., 16, 37-46, 1995. Hudson, J. A., Wave speeds and attenuation of elastic waves in material containing cracks, Geophys. J. R. Astron. Soc., 64, 133-150, 1981. Siegesmund, S., A. Vollbrecht, T. Chlupac, G. Nover, H. Dürrast, J. Müller, K. Weber, Fabric-controlled anisotropy of petrophysical properties observed in KTB core samples, Sci. Drill., 4, 31-54, 1993a. Siegesmund, S., A. Vollbrecht, Z. Pros, Fabric changes and their influences on P-wave velocity patterns: Examples from a polyphase deformed orthogneisses, Tectonophysics, 225, 477-492, 1993b. Popp, T., H. Kern, The influence of dry and water saturated cracks on seismic velocities of crustal rocks: A comparison of experimental data with theoretical models, Surv. Geophys., 15, 443-465, 1994. Rauen, A., J. Duyster, S. Heikamp, A. Kontny, G. Nover, T. Röckel, Electrical conductivity of a KTB core from 7000 m: Effects of cracks and ore minerals, Sci. Drill., 4, 197-206, 1994. Freund, D., G. Nover, Hydrostatic pressure tests for the permeability-formation factor relation on crystalline rocks from the KTB Drilling Project, Surv. Geophys., 16, 47-62, 1995. Schult, A., G. Shi, Hydration swelling of crystalline rocks, Geophys. J. Int., 1997. Kern, H., R. Schmidt, T. Popp, The velocity and density structure of the 4000 m crustal segment at the KTB drilling site and their relationship to lithological and microstructural characteristics of the rocks: An experimental approach, Sci. Drill., 2, 130-145, 1991. Lienert, M., H. Berckhemer, Comparison of P wave velocities in the KTB borehole and in drill cores, Sc. Drill., 1997. Schoenberg, M., J. Douma, Elastic wave propagation in media with parallel fractures and ligned cracks, Geophys. Prospect., 36, 571-590, 1988. Jelinek, V., Characterization of the magnetic fabric of rocks, Tectonophysics, 79, T63-T67, 1981. Haak, V., J. Stoll, H. Winter, Why is the electrical resistivity around the KTB hole so low?, Phys. Earth Planet. Inter., 66, 12-23, 1991. Röckel, T., Der Spannungszustand in der Erdkruste am Beispiel der KTB Tiefbohrungen, Veröff. Inst. für Bodenmech. und Felsmech. der Univ. Friedericiana, 137, 115, Karlsruhe, Germany, 1996. Huenges, E., B. Engeser, J. Erzinger, W. Kessels, andJ. Kück, The permeable crust: Geohydraulic properties down to 9100 m depth,J. Geophys. Res., 102B81997. Kissin, S. A., S. D. Scott, Phase relations involving pyrrhotite below 350°C, Econ. Geol., 77, 1739-1754, 1982. Pribnow, D. F. C., J. H. Sass, Determination of thermal conductivity for deep boreholes, J. Geophys. Res., 100, 9981-9994, 1995. Zang, A., H. Berckhemer, M. Lienert, Crack closure pressure inferred from ultrasonic drill-core measurements to 8 km depth in the KTB wells, Geophys. J. Int., 124, 657-674, 1996. Zang, A., K. Wolter, H. Berckhemer, Strain recovery, microcracks and elastic anisotropy of drill cores from the KTB deep well, Sci. Drill., 1, 115-126, 1989. Siegesmund, S., The significance of rock fabrics for the interpretation of geophysical anisotropies, Geotekt. Forsch., 85, 1-123, 1996. Kern, H., R. Schmidt, Physical properties of KTB core samples at simulated in situ conditions, Sci. Drill., 1, 217-223, 1990. Kern, H., T. Popp, R. Schmidt, The effect of a deviatoric stress on physical rock properties: An experimental study simulating the in-situ stress field at the KTB drilling site, Germany, Surv. Geophys., 15, 467-479, 1994. Siegesmund, S., A. Vollbrecht, K. Weber, Gefügekundliche Untersuchungen im KTB, Geowissenschaften, 9, 287-294, 1990. Schwarz, E. J., Magnetic properties of pyrrhotite and their use in applied geology and geophysics, Can. Geol. Surv. Pap., 74-59, 24, 1975. Prasad, M., M. H. Manghnani, S. Siegesmund, Compressional wave velocity and quality factor characteristics of selected KTB core samples, Sci. Drill., 4, 227-232, 1994. Clauser, C., et al.,The thermal regime of the crystalline crust: Implications from the KTB,J. Geophys. Res., 102B81997. Wolter, K., H. Berckhemer, Time dependent strain recovery of cores from the KTB-deep drill hole, Rock Mech. Rock Eng., 22, 273-287, 1989. Nover, G., G. Will, Laboratory measurements on KTB core samples: Complex resistivity, zeta potential, permeability and density as a tool for the detection of flow phenomena, Sci. Drill., 2, 90-100, 1991. Rabbel, W., Seismic anisotropy at the Continental deep drilling site (Germany), Tectonophysics, 232, 329-341, 1994. Jahns, E., S. Siegesmund, T. Chlupác, In situ seismic velocities versus laboratory measurements: An example from KTB, Sci. Drill., 4, 215-226, 1994. Zinke, J., Mikroriβuntersuchungen an KTB Bohrkernen: Beziehungen zu den elastischen Gesteinsparametern, Frankf. Geowiss. Arb., A-13, 204, Univ. Frankfurt, Frankfurt, Germany, 1996. Soffel, H. C., C. Bücker, H. Gebrande, E. Huenges, E. Lippmann, J. Pohl, A. Rauen, A. Schult, K. M. Streit, J. Wienand, Physical parameters measured on cores and cuttings from the pilot well (0-4000.1 m) of the German Continental Deep Drilling Program (KTB) in the Oberpfalz area, Bavaria, Federal Republic of Germany, Surv. Geophys., 13, 1-34, 1992. Haack, U., E. Gohn, C. Bücker, G. Zoth, Radiogenic heat production measured by laboratory and borehole methods, a comparison, Sci. Drill., 1, 211-216, 1990. Börner, F. D., J. H. Schön, Low frequency complex conductivity measurements of microcrack properties, Surv. Geophys., 16, 121-135, 1995. Lachenbruch, A. H., Preliminary geothermal model of the Sierra Nevada, J. Geophys. Res., 73, 6977-6989, 1968. Duba, A., S. Heikamp, W. Meurer, G. Nover, G. Will, Evidence from borehole samples for the role of accessory minerals in lower-crustal conductivity, Nature, 367, 59-61, 1994. Vollbrecht, A., H. Dürrast, J. Kraus, K. Weber, Paleo-stress direction deduced from microcrock fabrics in KTB core samples and exposed granites from the surrounding field, Sci. Drill., 4, 233-242, 1994. ELEKTB Group,KTB and the electrical conductivity of the crust,J. Geophys. Res., 102B81997. The Urach Geothermal Project (Swabian Alb, Germany)R. Haenel, 419, Schweitzerbart, Stuttgart, Germany, 1982. O'Brien, P., J. Duyster, G. Grauert, W. Schreyer, B. Stöckhert, andK. Weber, Crustal evolution of the KTB drill site: From oldest relics to the late Hercynian granites,J. Geophys. Res., 102B81997. Kapicka, A., E. Petrovský, J. Pohl, Magnetic anisotropy of the KTB pilot borehole rocks at in situ stress conditions, Sci. Drill., 1997. Pechnig, R., G. Zimmermann, S. Haverkamp, J. Wohlenberg, andH. Burkhardt, Integrated log interpretation in the German Continental Deep Drilling Program: Lithology, porosity, and fracture zones,J. Geophys. Res., 102B81997. Birch, F., The velocity of compressional waves in rocks to 10 kilobars, J. Geophys. Res., 65, 1083-1102, 1960. The Superdeep Well of the Kola PeninsulaY. A. Kozlovsky, 558, Springer-Verlag, New York, 1987. Jahns, E., W. Rabbel, S. Siegesmund, Quantified seismic anisotropy at different scales: A case study from the KTB crustal segment, Z. Geol. Wiss., 24, 729-740, 1996. deWall, H., H. Worm, Field dependence of magnetic anisotropy in pyrrhotite: Effects of texture and grain shape, Phys. Earth Planet. Inter., 76, 137-149, 1993. Bosum, W., U. Casten, S. C. Fieberg, I. Heyde, andH. C. Soffel, Three-dimensional interpretation of the KTB gravity and magnetic anomalies,J. Geophys. Res., 102B81997. Brudy, M., M. D. Zoback, K. Fuchs, F. Rummel, andJ. Baumgärtner, Estimation of the complete stress tensor to 8 km depth in the KTB scientific drill holes: Implications for crustal strength,J. Geophys. Res., 102B81997. Pucher, R., Pyrrhotite-induced aeromagnetic anomalies in western Germany, J. Appl. Geophys., 32, 33-42, 1994. Nur, A., G. Simmons, The effect of saturation on velocity in low porosity rocks, Earth Planet. Sci. Lett., 7, 183-193, 1969. Kessels, W., J. Kück, Hydraulic communication in crystalline rocks between the two boreholes of the Continental Deep Drilling Programme in Germany, Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 321, 37-47, 1995. Dresen, G., J. Duyster, B. Stöckhert, R. Wirth, andG. Zulauf, Quartz dislocation microstructures between 7000 m and 9100 m depth from the Continental Deep Drilling Program KTB,J. Geophys. Res., 102B81997. Kontny, A., H. deWall, T. Sharp, Mechanismen der Gitterumwandlung yon hexagonalem zu monoklinem Pyrrhotin: Ergebnisse von mikrostrukturellen und magnetischen Untersuchungen an Pyrrhotinen der KTB Bohrung, Eur. J. Mineral., 8, 154, Beih., 1996. Kontny, A., G. Friedrich, H. J. Behr, H. deWall, E. E. Horn, P. Möller, andG. Zulauf, Ore mineral forming processes in the metamorphic rocks of the German continental deep drilling site (KTB),J. Geophys. Res., 102B81997. Brace, W. F., A. S. Orange, T. R. Madden, The effect of pressure on the electrical resistivity of water saturated crystalline rocks, J. Geophys. Res., 70, 5669-5678, 1965. Geothermal Energy in Europe: The Soultz Hot Dry ProjectJ. C. Bresee, 309, Gordon and Breach, Montreux, 1992. Vernik, L., A. Nur, Petrophysical analysis of the Cajon Pass scientific well: Implications for fluid flow and seismic studies in the continental crest, J. Geophys. Res., 97, 5121-5134, 1992. Worm, H. U., C. Rolf, Remanent magnetization of KTB drill cores, Sci. Drill., 4, 185-196, 1994. Pohl, J., T. Pätzold, C. Rolf, H. C. Soffel, H. U. Worm, A rock magnetic log of the KTB pilot borehole, Sci. Drill., 2, 120-129, 1991. Emmermann, R., andJ. Lauterjung, 1982; V/1b 1988; 36 1995; 32 1992; 13 1992; 97 1987; 39 1993; 4 1996; A‐13 1977 1997; 102 1990 1986; 44 1993; 76 1969; 7 1987 1981; 79 1983 1982 1996; 137 1996; 24 1996; 8 1989 1994; 32 1975; 80 1988 1991; 2 1974; 79 1994; 232 1989; 22 1989; 1 1995; 16 1965; 70 1982; 77 1997 1995 1994 1993 1992 1991 1996; 124 1993; 225 1981; 64 1990; 1 1960; 65 1994; 367 1991; 66 1995; 43 1996; 85 1994; 15 1995; 100 1975; 74‐59 1968; 73 1990; 9 1994; 4 Kern H. (e_1_2_1_40_1) 1990; 1 Kapicka A. (e_1_2_1_37_1) 1997 e_1_2_1_81_1 e_1_2_1_66_1 Jahns E. (e_1_2_1_33_1) 1994; 4 e_1_2_1_62_1 e_1_2_1_43_1 e_1_2_1_85_1 e_1_2_1_47_1 e_1_2_1_92_1 Prasad M. (e_1_2_1_61_1) 1994; 4 Siegesmund S. (e_1_2_1_84_1) 1993; 4 Haack U. (e_1_2_1_24_1) 1982 e_1_2_1_31_1 e_1_2_1_54_1 ELEKTB Group (e_1_2_1_20_1) 1997; 102 Kern H. (e_1_2_1_41_1) 1991; 2 e_1_2_1_12_1 e_1_2_1_35_1 e_1_2_1_50_1 e_1_2_1_4_1 e_1_2_1_16_1 e_1_2_1_58_1 Wall H. (e_1_2_1_15_1) 1995 Pros Z. (e_1_2_1_64_1) 1977 e_1_2_1_67_1 Just A. (e_1_2_1_36_1) 1995 e_1_2_1_21_1 e_1_2_1_44_1 e_1_2_1_63_1 e_1_2_1_86_1 e_1_2_1_48_1 Haack U. (e_1_2_1_25_1) 1990; 1 e_1_2_1_29_1 Bourbie T. (e_1_2_1_6_1) 1987 Berckhemer H. (e_1_2_1_2_1) 1995 e_1_2_1_70_1 Kern H. (e_1_2_1_39_1) 1982 Haenel R. (e_1_2_1_28_1) 1982 e_1_2_1_7_1 Worm H. U. (e_1_2_1_95_1) 1994; 4 e_1_2_1_55_1 e_1_2_1_78_1 e_1_2_1_3_1 e_1_2_1_13_1 e_1_2_1_97_1 e_1_2_1_32_1 e_1_2_1_74_1 e_1_2_1_17_1 e_1_2_1_60_1 e_1_2_1_87_1 e_1_2_1_68_1 e_1_2_1_45_1 e_1_2_1_22_1 Winter H. (e_1_2_1_93_1) 1995 e_1_2_1_49_1 Van Olphen H. (e_1_2_1_89_1) 1977 e_1_2_1_26_1 Nover G. (e_1_2_1_53_1) 1991; 2 Zang A. (e_1_2_1_96_1) 1989; 1 e_1_2_1_71_1 e_1_2_1_90_1 Rybach L. (e_1_2_1_77_1) 1986 Jahns E. (e_1_2_1_34_1) 1996; 24 e_1_2_1_56_1 e_1_2_1_79_1 e_1_2_1_98_1 e_1_2_1_75_1 e_1_2_1_94_1 Rauen A. (e_1_2_1_69_1) 1994 e_1_2_1_14_1 Bücker C. (e_1_2_1_10_1) 1997 Lienert M. (e_1_2_1_51_1) 1997 Rauen A. (e_1_2_1_73_1) 1994; 4 e_1_2_1_18_1 Mayer P. (e_1_2_1_52_1) 1995 e_1_2_1_80_1 e_1_2_1_42_1 e_1_2_1_65_1 e_1_2_1_88_1 e_1_2_1_23_1 Pohl J. (e_1_2_1_59_1) 1991; 2 e_1_2_1_27_1 Vollbrecht A. (e_1_2_1_91_1) 1994; 4 Kontny A. (e_1_2_1_46_1) 1995 e_1_2_1_30_1 e_1_2_1_76_1 e_1_2_1_5_1 e_1_2_1_57_1 e_1_2_1_99_1 Bresee J. C. (e_1_2_1_8_1) 1992 e_1_2_1_72_1 e_1_2_1_11_1 e_1_2_1_38_1 Siegesmund S. (e_1_2_1_82_1) 1996; 85 Siegesmund S. (e_1_2_1_83_1) 1990; 9 e_1_2_1_9_1 e_1_2_1_19_1 |
| References_xml | – start-page: 205 year: 1995 end-page: 209 – volume: 4 start-page: 31 year: 1993 end-page: 54 article-title: Fabric‐controlled anisotropy of petrophysical properties observed in KTB core samples publication-title: Sci. Drill. – volume: 2 start-page: 90 year: 1991 end-page: 100 article-title: Laboratory measurements on KTB core samples: Complex resistivity, zeta potential, permeability and density as a tool for the detection of flow phenomena publication-title: Sci. Drill. – volume: 102 issue: B8 year: 1997 article-title: The German Continental Deep Drilling Program KTB: Overview and major results publication-title: J. Geophys. Res. – start-page: 15 year: 1982 end-page: 45 – start-page: D1 year: 1992 end-page: D42 – volume: 1 start-page: 217 year: 1990 end-page: 223 article-title: Physical properties of KTB core samples at simulated in situ conditions publication-title: Sci. Drill. – volume: 85 start-page: 1 year: 1996 end-page: 123 article-title: The significance of rock fabrics for the interpretation of geophysical anisotropies publication-title: Geotekt. Forsch. – volume: 4 start-page: 233 year: 1994 end-page: 242 article-title: Paleo‐stress direction deduced from microcrock fabrics in KTB core samples and exposed granites from the surrounding field publication-title: Sci. Drill. – volume: 80 start-page: 752 year: 1975 end-page: 755 article-title: The effect of microcrock dilatancy on the permeability of Westerly Granite publication-title: J. Geophys. Res. – start-page: 99 year: 1989 end-page: 149 – volume: 1 start-page: 211 year: 1990 end-page: 216 article-title: Radiogenic heat production measured by laboratory and borehole methods, a comparison publication-title: Sci. Drill. – start-page: 161 year: 1995 end-page: 164 – volume: 32 start-page: 33 year: 1994 end-page: 42 article-title: Pyrrhotite‐induced aeromagnetic anomalies in western Germany publication-title: J. Appl. Geophys. – start-page: F1 year: 1995 end-page: F13 – volume: 65 start-page: 1083 year: 1960 end-page: 1102 article-title: The velocity of compressional waves in rocks to 10 kilobars publication-title: J. Geophys. Res. – volume: 2 start-page: 120 year: 1991 end-page: 129 article-title: A rock magnetic log of the KTB pilot borehole publication-title: Sci. Drill. – volume: 36 start-page: 571 year: 1988 end-page: 590 article-title: Elastic wave propagation in media with parallel fractures and ligned cracks publication-title: Geophys. Prospect. – volume: 79 start-page: 5412 year: 1974 end-page: 5426 article-title: Seismic velocity in dry and saturated cracked solids publication-title: J. Geophys. Res. – volume: 13 start-page: 1 year: 1992 end-page: 34 article-title: Physical parameters measured on cores and cuttings from the pilot well (0–4000.1 m) of the German Continental Deep Drilling Program (KTB) in the Oberpfalz area, Bavaria, Federal Republic of Germany publication-title: Surv. Geophys. – volume: 4 start-page: 215 year: 1994 end-page: 226 article-title: In situ seismic velocities versus laboratory measurements: An example from KTB publication-title: Sci. Drill. – start-page: 179 year: 1995 end-page: 183 – start-page: 409 year: 1989 end-page: 431 – volume: 4 start-page: 185 year: 1994 end-page: 196 article-title: Remanent magnetization of KTB drill cores publication-title: Sci. Drill. – volume: 70 start-page: 5669 year: 1965 end-page: 5678 article-title: The effect of pressure on the electrical resistivity of water saturated crystalline rocks publication-title: J. Geophys. Res. – start-page: A15 year: 1993 end-page: A63 – volume: 137 year: 1996 – volume: V/1b start-page: 433 year: 1982 end-page: 560 – year: 1987 – volume: A‐13 year: 1996 – volume: 2 start-page: 130 year: 1991 end-page: 145 article-title: The velocity and density structure of the 4000 m crustal segment at the KTB drilling site and their relationship to lithological and microstructural characteristics of the rocks: An experimental approach publication-title: Sci. Drill. – start-page: 421 year: 1983 end-page: 430 – year: 1992 – volume: 79 start-page: T63 year: 1981 end-page: T67 article-title: Characterization of the magnetic fabric of rocks publication-title: Tectonophysics – start-page: 354 year: 1994 end-page: 360 – start-page: B70 year: 1994 – year: 1997 article-title: Magnetic anisotropy of the KTB pilot borehole rocks at in situ stress conditions publication-title: Sci. Drill. – start-page: F1 year: 1992 end-page: F17 – volume: 102 issue: B8 year: 1997 article-title: Integrated log interpretation in the German Continental Deep Drilling Program: Lithology, porosity, and fracture zones publication-title: J. Geophys. Res. – start-page: 31 year: 1995 end-page: 35 – start-page: 285 year: 1994 end-page: 308 – start-page: 56 year: 1977 end-page: 67 – start-page: D1 year: 1988 end-page: D42 – volume: 4 start-page: 197 year: 1994 end-page: 206 article-title: Electrical conductivity of a KTB core from 7000 m: Effects of cracks and ore minerals publication-title: Sci. Drill. – volume: 16 start-page: 47 year: 1995 end-page: 62 article-title: Hydrostatic pressure tests for the permeability‐formation factor relation on crystalline rocks from the KTB Drilling Project publication-title: Surv. Geophys. – start-page: 173 year: 1995 end-page: 178 – volume: 39 year: 1987 – volume: 7 start-page: 183 year: 1969 end-page: 193 article-title: The effect of saturation on velocity in low porosity rocks publication-title: Earth Planet. Sci. Lett. – volume: 97 start-page: 5121 year: 1992 end-page: 5134 article-title: Petrophysical analysis of the Cajon Pass scientific well: Implications for fluid flow and seismic studies in the continental crest publication-title: J. Geophys. Res. – start-page: D1 year: 1995 end-page: D45 – volume: 66 start-page: 12 year: 1991 end-page: 23 article-title: Why is the electrical resistivity around the KTB hole so low? publication-title: Phys. Earth Planet. Inter. – start-page: B1 year: 1990 end-page: B55 – volume: 102 issue: B8 year: 1997 article-title: The permeable crust: Geohydraulic properties down to 9100 m depth publication-title: J. Geophys. Res. – volume: 225 start-page: 477 year: 1993 end-page: 492 article-title: Fabric changes and their influences on ‐wave velocity patterns: Examples from a polyphase deformed orthogneisses publication-title: Tectonophysics – volume: 232 start-page: 329 year: 1994 end-page: 341 article-title: Seismic anisotropy at the Continental deep drilling site (Germany) publication-title: Tectonophysics – volume: 24 start-page: 729 year: 1996 end-page: 740 article-title: Quantified seismic anisotropy at different scales: A case study from the KTB crustal segment publication-title: Z. Geol. Wiss. – start-page: B1 year: 1995 end-page: B80 – volume: 102 issue: B8 year: 1997 article-title: Ore mineral forming processes in the metamorphic rocks of the German continental deep drilling site (KTB publication-title: J. Geophys. Res. – volume: 102 issue: B8 year: 1997 article-title: Three‐dimensional interpretation of the KTB gravity and magnetic anomalies publication-title: J. Geophys. Res. – start-page: 275 year: 1992 end-page: 290 – volume: 15 start-page: 443 year: 1994 end-page: 465 article-title: The influence of dry and water saturated cracks on seismic velocities of crustal rocks: A comparison of experimental data with theoretical models publication-title: Surv. Geophys. – volume: 16 start-page: 121 year: 1995 end-page: 135 article-title: Low frequency complex conductivity measurements of microcrack properties publication-title: Surv. Geophys. – volume: 16 start-page: 63 year: 1995 end-page: 81 article-title: The effect of pressure on the electrical conductivity of KTB rocks publication-title: Surv. Geophys. – volume: 102 issue: B8 year: 1997 article-title: The thermal regime of the crystalline crust: Implications from the KTB publication-title: J. Geophys. Res. – volume: 74‐59 year: 1975 – volume: 22 start-page: 273 year: 1989 end-page: 287 article-title: Time dependent strain recovery of cores from the KTB‐deep drill hole publication-title: Rock Mech. Rock Eng. – year: 1994 – volume: 16 start-page: 37 year: 1995 end-page: 46 article-title: Investigation of electrical anisotropy by the deep borehole KTB publication-title: Surv. Geophys. – volume: 44 start-page: 311 year: 1986 end-page: 322 – volume: 102 issue: B8 year: 1997 article-title: KTB and the electrical conductivity of the crust publication-title: J. Geophys. Res. – year: 1982 – start-page: I1 year: 1990 end-page: I6 – volume: 102 issue: B8 year: 1997 article-title: Crustal evolution of the KTB drill site: From oldest relics to the late Hercynian granites publication-title: J. Geophys. Res. – start-page: 126 year: 1995 end-page: 129 – volume: 32 start-page: 37 issue: 1 year: 1995 end-page: 47 article-title: Hydraulic communication in crystalline rocks between the two boreholes of the Continental Deep Drilling Programme in Germany publication-title: Int. J. Rock Mech. Min. Sci. Geomech. Abstr. – year: 1997 – volume: 8 start-page: 154 year: 1996 – volume: 367 start-page: 59 year: 1994 end-page: 61 article-title: Evidence from borehole samples for the role of accessory minerals in lower‐crustal conductivity publication-title: Nature – volume: 64 start-page: 133 year: 1981 end-page: 150 article-title: Wave speeds and attenuation of elastic waves in material containing cracks publication-title: Geophys. J. R. Astron. Soc. – volume: 15 start-page: 467 year: 1994 end-page: 479 article-title: The effect of a deviatoric stress on physical rock properties: An experimental study simulating the in‐situ stress field at the KTB drilling site, Germany publication-title: Surv. Geophys. – volume: 1 start-page: 115 year: 1989 end-page: 126 article-title: Strain recovery, microcracks and elastic anisotropy of drill cores from the KTB deep well publication-title: Sci. Drill. – volume: 102 issue: B8 year: 1997 article-title: Quartz dislocation microstructures between 7000 m and 9100 m depth from the Continental Deep Drilling Program KTB publication-title: J. Geophys. Res. – volume: 9 start-page: 287 year: 1990 end-page: 294 article-title: Gefügekundliche Untersuchungen im KTB publication-title: Geowissenschaften – volume: 77 start-page: 1739 year: 1982 end-page: 1754 article-title: Phase relations involving pyrrhotite below 350°C publication-title: Econ. Geol. – volume: 4 start-page: 227 year: 1994 end-page: 232 article-title: Compressional wave velocity and quality factor characteristics of selected KTB core samples publication-title: Sci. Drill. – volume: 102 issue: B8 year: 1997 article-title: Estimation of the complete stress tensor to 8 km depth in the KTB scientific drill holes: Implications for crustal strength publication-title: J. Geophys. Res. – volume: 124 start-page: 657 year: 1996 end-page: 674 article-title: Crack closure pressure inferred from ultrasonic drill‐core measurements to 8 km depth in the KTB wells publication-title: Geophys. J. Int. – volume: 76 start-page: 137 year: 1993 end-page: 149 article-title: Field dependence of magnetic anisotropy in pyrrhotite: Effects of texture and grain shape publication-title: Phys. Earth Planet. Inter. – year: 1977 – volume: 102 issue: B8 year: 1997 article-title: Post‐variscan thermal and tectonic evolution of the KTB site and its surroundings publication-title: J. Geophys. Res. – volume: 73 start-page: 6977 year: 1968 end-page: 6989 article-title: Preliminary geothermal model of the Sierra Nevada publication-title: J. Geophys. Res. – year: 1997 article-title: Comparison of wave velocities in the KTB borehole and in drill cores publication-title: Sc. Drill. – volume: 100 start-page: 9981 year: 1995 end-page: 9994 article-title: Determination of thermal conductivity for deep boreholes publication-title: J. Geophys. Res. – start-page: 223 year: 1989 end-page: 241 – year: 1991 – volume: 43 start-page: 283 year: 1995 end-page: 298 article-title: Determination of electrical resistivity, its anisotropy and heterogeneity on drill cores: A new method publication-title: Geophys. Prospect. – year: 1997 article-title: Hydration swelling of crystalline rocks publication-title: Geophys. J. Int. – ident: e_1_2_1_66_1 – volume: 4 start-page: 227 year: 1994 ident: e_1_2_1_61_1 article-title: Compressional wave velocity and quality factor characteristics of selected KTB core samples publication-title: Sci. Drill. contributor: fullname: Prasad M. – ident: e_1_2_1_19_1 – ident: e_1_2_1_14_1 doi: 10.1016/0031-9201(93)90063-F – start-page: 126 volume-title: Contributions to the 8th annual KTB colloquium year: 1995 ident: e_1_2_1_52_1 contributor: fullname: Mayer P. – ident: e_1_2_1_92_1 doi: 10.1029/96JB02565 – ident: e_1_2_1_18_1 – volume: 1 start-page: 115 year: 1989 ident: e_1_2_1_96_1 article-title: Strain recovery, microcracks and elastic anisotropy of drill cores from the KTB deep well publication-title: Sci. Drill. contributor: fullname: Zang A. – ident: e_1_2_1_30_1 doi: 10.1111/j.1365-246X.1981.tb02662.x – ident: e_1_2_1_3_1 doi: 10.1029/JZ065i004p01083 – ident: e_1_2_1_62_1 doi: 10.1029/95JB00960 – ident: e_1_2_1_85_1 doi: 10.1016/0040-1951(93)90311-7 – ident: e_1_2_1_78_1 doi: 10.1007/978-3-642-74588-1_7 – ident: e_1_2_1_87_1 doi: 10.1007/BF01901949 – start-page: 205 volume-title: Contributions to the 8th annual KTB colloquium year: 1995 ident: e_1_2_1_93_1 contributor: fullname: Winter H. – volume-title: Acoustics of Porous Media year: 1987 ident: e_1_2_1_6_1 contributor: fullname: Bourbie T. – ident: e_1_2_1_35_1 doi: 10.1016/0040-1951(81)90110-4 – ident: e_1_2_1_94_1 doi: 10.1007/BF01262283 – ident: e_1_2_1_60_1 doi: 10.1007/BF00690169 – ident: e_1_2_1_56_1 doi: 10.1029/96JB03397 – ident: e_1_2_1_65_1 doi: 10.1016/0926-9851(94)90007-8 – ident: e_1_2_1_44_1 doi: 10.2113/gsecongeo.77.7.1739 – start-page: 161 volume-title: Contributions to the 8th annual KTB colloquium year: 1995 ident: e_1_2_1_36_1 contributor: fullname: Just A. – volume: 2 start-page: 120 year: 1991 ident: e_1_2_1_59_1 article-title: A rock magnetic log of the KTB pilot borehole publication-title: Sci. Drill. contributor: fullname: Pohl J. – volume: 24 start-page: 729 year: 1996 ident: e_1_2_1_34_1 article-title: Quantified seismic anisotropy at different scales: A case study from the KTB crustal segment publication-title: Z. Geol. Wiss. contributor: fullname: Jahns E. – volume: 102 issue: 8 year: 1997 ident: e_1_2_1_20_1 article-title: KTB and the electrical conductivity of the crust publication-title: J. Geophys. Res. contributor: fullname: ELEKTB Group – ident: e_1_2_1_79_1 doi: 10.1111/j.1365-2478.1988.tb02181.x – start-page: 31 volume-title: Contributions to the 8th annual KTB colloquium year: 1995 ident: e_1_2_1_2_1 contributor: fullname: Berckhemer H. – ident: e_1_2_1_49_1 doi: 10.1007/978-3-642-71137-4 – ident: e_1_2_1_38_1 – ident: e_1_2_1_32_1 doi: 10.1029/96JB03442 – volume-title: The Urach Geothermal Project (Swabian Alb, Germany) year: 1982 ident: e_1_2_1_28_1 contributor: fullname: Haenel R. – ident: e_1_2_1_31_1 – ident: e_1_2_1_26_1 doi: 10.1007/978-3-642-74588-1_10 – ident: e_1_2_1_76_1 – ident: e_1_2_1_70_1 doi: 10.1007/BF00682711 – ident: e_1_2_1_81_1 doi: 10.4095/102563 – ident: e_1_2_1_98_1 – volume: 2 start-page: 130 year: 1991 ident: e_1_2_1_41_1 article-title: The velocity and density structure of the 4000 m crustal segment at the KTB drilling site and their relationship to lithological and microstructural characteristics of the rocks: An experimental approach publication-title: Sci. Drill. contributor: fullname: Kern H. – year: 1997 ident: e_1_2_1_51_1 article-title: Comparison of P wave velocities in the KTB borehole and in drill cores publication-title: Sc. Drill. contributor: fullname: Lienert M. – ident: e_1_2_1_47_1 – ident: e_1_2_1_16_1 doi: 10.1029/96JB03394 – ident: e_1_2_1_4_1 doi: 10.1007/BF00682716 – ident: e_1_2_1_97_1 doi: 10.1111/j.1365-246X.1996.tb05631.x – ident: e_1_2_1_63_1 – ident: e_1_2_1_12_1 doi: 10.1029/96JB03443 – ident: e_1_2_1_74_1 – start-page: 56 volume-title: High Pressure and Temperature Studies of Physical Properties of Rocks and Minerals year: 1977 ident: e_1_2_1_64_1 contributor: fullname: Pros Z. – ident: e_1_2_1_22_1 doi: 10.1007/BF00682712 – start-page: 354 volume-title: Proceedings of 15th Colloquium “Elektromagnetische Tiefenforschung” in Höchst/Odenwald year: 1994 ident: e_1_2_1_69_1 contributor: fullname: Rauen A. – ident: e_1_2_1_55_1 doi: 10.1016/0012-821X(69)90035-1 – volume-title: Methodenhandbuch, Band Geotechnik year: 1997 ident: e_1_2_1_10_1 contributor: fullname: Bücker C. – volume: 2 start-page: 90 year: 1991 ident: e_1_2_1_53_1 article-title: Laboratory measurements on KTB core samples: Complex resistivity, zeta potential, permeability and density as a tool for the detection of flow phenomena publication-title: Sci. Drill. contributor: fullname: Nover G. – ident: e_1_2_1_80_1 doi: 10.1111/j.1365-246X.1997.tb00604.x – ident: e_1_2_1_58_1 doi: 10.1029/96JB03802 – ident: e_1_2_1_54_1 doi: 10.1007/BF00682713 – ident: e_1_2_1_90_1 doi: 10.1029/91JB01672 – ident: e_1_2_1_71_1 doi: 10.1111/j.1365-2478.1995.tb00254.x – ident: e_1_2_1_7_1 doi: 10.1029/JZ070i022p05669 – start-page: 15 volume-title: High Pressure Researches in Geoscience year: 1982 ident: e_1_2_1_39_1 contributor: fullname: Kern H. – ident: e_1_2_1_86_1 doi: 10.1007/978-3-642-74588-1_17 – year: 1997 ident: e_1_2_1_37_1 article-title: Magnetic anisotropy of the KTB pilot borehole rocks at in situ stress conditions publication-title: Sci. Drill. contributor: fullname: Kapicka A. – volume-title: An Introduction to Clay Colloid Chemistry year: 1977 ident: e_1_2_1_89_1 contributor: fullname: Van Olphen H. – ident: e_1_2_1_45_1 – ident: e_1_2_1_75_1 – volume: 4 start-page: 233 year: 1994 ident: e_1_2_1_91_1 article-title: Paleo‐stress direction deduced from microcrock fabrics in KTB core samples and exposed granites from the surrounding field publication-title: Sci. Drill. contributor: fullname: Vollbrecht A. – ident: e_1_2_1_72_1 – ident: e_1_2_1_42_1 doi: 10.1007/BF00690170 – ident: e_1_2_1_88_1 doi: 10.2118/11649-MS – ident: e_1_2_1_50_1 doi: 10.1029/JB073i022p06977 – start-page: 311 volume-title: Thermal Modeling in Sedimentary Basins year: 1986 ident: e_1_2_1_77_1 contributor: fullname: Rybach L. – ident: e_1_2_1_13_1 – ident: e_1_2_1_21_1 doi: 10.1029/96JB03945 – ident: e_1_2_1_48_1 doi: 10.1029/96JB03395 – volume: 1 start-page: 211 year: 1990 ident: e_1_2_1_25_1 article-title: Radiogenic heat production measured by laboratory and borehole methods, a comparison publication-title: Sci. Drill. contributor: fullname: Haack U. – ident: e_1_2_1_57_1 doi: 10.1029/JB079i035p05412 – volume: 1 start-page: 217 year: 1990 ident: e_1_2_1_40_1 article-title: Physical properties of KTB core samples at simulated in situ conditions publication-title: Sci. Drill. contributor: fullname: Kern H. – ident: e_1_2_1_43_1 doi: 10.1016/0148-9062(94)00017-W – ident: e_1_2_1_23_1 – start-page: 179 volume-title: Contributions to the 8th annual KTB colloquium year: 1995 ident: e_1_2_1_15_1 contributor: fullname: Wall H. – ident: e_1_2_1_5_1 doi: 10.1029/96JB03407 – volume: 4 start-page: 197 year: 1994 ident: e_1_2_1_73_1 article-title: Electrical conductivity of a KTB core from 7000 m: Effects of cracks and ore minerals publication-title: Sci. Drill. contributor: fullname: Rauen A. – ident: e_1_2_1_67_1 doi: 10.1016/0040-1951(94)90094-9 – ident: e_1_2_1_29_1 – volume-title: Geothermal Energy in Europe: The Soultz Hot Dry Project year: 1992 ident: e_1_2_1_8_1 contributor: fullname: Bresee J. C. – ident: e_1_2_1_68_1 – ident: e_1_2_1_17_1 doi: 10.1038/367059a0 – ident: e_1_2_1_9_1 doi: 10.1029/96JB02942 – volume: 4 start-page: 215 year: 1994 ident: e_1_2_1_33_1 article-title: In situ seismic velocities versus laboratory measurements: An example from KTB publication-title: Sci. Drill. contributor: fullname: Jahns E. – start-page: 173 volume-title: Contributions to the 8th annual KTB colloquium year: 1995 ident: e_1_2_1_46_1 contributor: fullname: Kontny A. – volume: 4 start-page: 31 year: 1993 ident: e_1_2_1_84_1 article-title: Fabric‐controlled anisotropy of petrophysical properties observed in KTB core samples publication-title: Sci. Drill. contributor: fullname: Siegesmund S. – volume: 4 start-page: 185 year: 1994 ident: e_1_2_1_95_1 article-title: Remanent magnetization of KTB drill cores publication-title: Sci. Drill. contributor: fullname: Worm H. U. – ident: e_1_2_1_11_1 – volume: 9 start-page: 287 year: 1990 ident: e_1_2_1_83_1 article-title: Gefügekundliche Untersuchungen im KTB publication-title: Geowissenschaften contributor: fullname: Siegesmund S. – volume: 85 start-page: 1 year: 1996 ident: e_1_2_1_82_1 article-title: The significance of rock fabrics for the interpretation of geophysical anisotropies publication-title: Geotekt. Forsch. contributor: fullname: Siegesmund S. – ident: e_1_2_1_27_1 doi: 10.1016/0031-9201(91)90100-V – start-page: 433 volume-title: Physical Properties of Rocks, Landolt‐Börnstein, New Series year: 1982 ident: e_1_2_1_24_1 contributor: fullname: Haack U. – ident: e_1_2_1_99_1 doi: 10.1029/JB080i005p00752 |
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| Snippet | Petrophysical properties of drill core and drill cuttings samples from both bore holes of the German Continental Deep Drilling Program (KTB) measured at... |
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| Title | Petrophysical properties of the 9-km-deep crustal section at KTB |
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