Search Results - "McCarty, Douglas K"
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Surface area and layer charge of smectite from CEC and EGME/H2O-retention measurements
Published in Clays and clay minerals (01-04-2008)“…The total specific surface area (TSSA) and smectitic layer charge (Qs) calculated from the structural formulae and unit-cell dimensions of 12 pure smectite…”
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2
Some successful approaches to quantitative mineral analysis as revealed by the 3RD Reynolds Cup contest
Published in Clays and clay minerals (01-12-2006)“…Details of the quantitative techniques successfully applied to artificial rock mixtures distributed for the third Clay Minerals Society Reynolds Cup (RC)…”
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3
Influence of mechanical compaction and clay mineral diagenesis on the microfabric and pore-scale properties of deep-water Gulf of Mexico mudstones
Published in Clays and clay minerals (01-08-2006)“…We report on how the effects of mechanical compaction and clay mineral diagenesis have affected the alignment of phyllosilicates in a suite of Miocene-Pliocene…”
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The nature of structure-bonded H2O in illite and leucophyllite from dehydration and dehydroxylation experiments
Published in Clays and clay minerals (01-02-2007)“…Thermogravimetric analysis combined with mass spectrometry was used to study H2O bound to samples of illite-1M, illite-2M2 and leucophyllite-1M. Samples were…”
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5
Quantitative x-ray diffraction analysis of clay-bearing rocks from random preparations
Published in Clays and clay minerals (01-12-2001)“…An internal standard X-ray diffraction (XRD) analysis technique permits reproducible and accurate calculation of the mineral contents of rocks, including the…”
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6
Nano-scale texture and porosity of organic matter and clay minerals in organic-rich mudrocks
Published in Fuel (Guildford) (01-11-2014)“…Pore size distribution of samples showing significant pore volume decrease below 5nm pore size upon organic matter removal by NaOCl treatment. Blue circles…”
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7
Total porosity measurement in gas shales by the water immersion porosimetry (WIP) method
Published in Fuel (Guildford) (01-01-2014)“…•Total porosity measurement for gas shales without using crushed rock is presented.•The method uses a modified saturation – immersion technique with deionized…”
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Early clay diagenesis in Gulf Coast sediments; new insights from XRD profile modeling
Published in Clays and clay minerals (01-06-2008)“…Samples from different depths in the Oligocene Frio formation (offshore Gulf of Mexico) were studied by X-ray diffraction (XRD), thermal analyses, and scanning…”
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Dehydration Effect on the Pore Size, Porosity, and Fractal Parameters of Shale Rocks: Ultrasmall-Angle X‑ray Scattering Study
Published in Energy & fuels (20-11-2014)“…The characterization of pore networks is extremely important in understanding transport and storage phenomena in unconventional gas and oil reservoir rocks. An…”
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Crystal-chemical regularities and identification criteria in Fe-bearing, K-dioctahedral 1M micas from X-ray diffraction and infrared spectroscopy data
Published in Clays and clay minerals (01-08-2017)“…Iron-bearing K-dioctahedral 1M and 1Md micas are abundant in diverse geological environments and vary in composition from illite to celadonite through…”
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11
Mineral-chemistry quantification and petrophysical calibration for multimineral evaluations; a nonlinear approach
Published in AAPG bulletin (01-07-2015)“…The mineralogical complexity of mudstone reservoirs has led to the increased usage of multimineral optimizing petrophysical models for estimating porosity,…”
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12
Heterogeneous mixed-layer clays from the Cretaceous Greensand, Isle of Wight, southern England
Published in Clays and clay minerals (01-10-2004)“…The sea-cliffs of the Isle of Wight were deposited during a period of overall sea-level rise starting in the Barremian (Lower Cretaceous) and continuing into…”
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13
The illite-aluminoceladonite series; distinguishing features and identification criteria from X-ray diffraction and infrared spectroscopy data
Published in Clays and clay minerals (01-10-2015)“…Al-rich K-dioctahedral 1M and 1Md micas are abundant in sedimentary rocks and form a continuous compositional series from (Mg,Fe)-poor illite to…”
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14
Sub-THz complex dielectric constants of smectite clay thin samples with Na+/Ca++ ions
Published in Journal of geophysical research. Solid earth (01-09-2015)“…We implement a technique to characterize the electromagnetic properties at frequencies 100 to 165 GHz (3 cm−1 to 4.95 cm−1) of oriented smectite samples using…”
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15
Crystal-chemical factors responsible for the distribution of octahedral cations over trans- and cis-sites in dioctahedral 2:1 layer silicates
Published in Clays and clay minerals (01-04-2006)“…Crystal chemical analysis of various dioctahedral 2:1 phyllosilicates consisting of trans-vacant (tv) and cis-vacant (cv) layers and interstratified cv and tv…”
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16
Interpretation of infrared spectra of dioctahedral smectites in the region of OH-stretching vibrations
Published in Clays and clay minerals (01-08-2004)“…Dioctahedral smectite samples of a wide range of compositions (beidellites, montmorillonites, nontronites, Fe-rich montmorillonites and Al-rich nontronites)…”
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17
New insight into structural and compositional variability in some ancient excess-Ca dolomite
Published in Canadian mineralogist (01-08-2005)“…Samples of non-stoichiometric dolomite of different age and origin have been studied by powder X-ray diffraction, scanning electron microscopy and…”
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18
The effect of organic matter maturation and porosity evolution on methane storage potential in the Baltic Basin (Poland) shale-gas reservoir
Published in International journal of coal geology (01-07-2017)“…Supercritical CH4 and subcritical CO2 and N2 gas adsorption measurements, combined with scanning electron microscopy (SEM) have been used to determine CH4…”
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Grain assemblages and diagenesis in the tarl-dominated Lower Silurian mudrock succession of the western margin of the east European craton in Poland and Lithuania
Published in Sedimentary geology (15-10-2018)“…Detrital grain assemblages in mudrocks establish a key starting condition for the diagenetic pathways that drive the evolution of rock properties in…”
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Mineralogy and trace element association in an acid mine drainage iron oxide precipitate; comparison of selective extractions
Published in Applied geochemistry (01-03-1998)“…Mineral and trace element characterization of an Fe-rich precipitate from an acid mine system was accomplished by X-ray diffraction (XRD), differential X-ray…”
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