Search Results - "Marriner, G. F"

Subduction of pelagic sediments; implications for the origin of Ce-anomalous basalts from the Mariana Islands by Hole, M. J, Saunders, Andrew D, Marriner, G. F, Tarney, John

“…A series of pelagic clays and nannofossil oozes from the Nazca plate have been analysed for REE and other trace elements. A calculated average - Pacific…”
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Geochemistry of Holocene volcanic rocks associated with ridge subduction in Baja California, Mexico by Rogers, G, Saunders, A. D, Terrell, D. J, Verma, S. P, Marriner, G. F

“…Although the geochemistry of magmatism associated with the subduction of oceanic lithosphere is well understood, the geochemical signature of lavas produced…”
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Geochemical evidence for plume-mantle interactions beneath Kerguelen and Heard Islands, Indian Ocean by Storey, M, Saunders, A. D, Tarney, J, Leat, P, Thirlwall, M. F, Thompson, R. N, Menzies, M. A, Marriner, G. F

“…Kerguelen and Heard Islands in the southern Indian Ocean are the latest products of a large and long-lived plume system. A demonstration that the isotopic…”
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Depleted arc volcanism in the Alboran Sea and shoshonitic volcanism in Morocco: geochemical and isotopic constraints on Neogene tectonic processes by Gill, R.C.O., Aparicio, A., El Azzouzi, M., Hernandez, J., Thirlwall, M.F., Bourgois, J., Marriner, G.F.

“…Samples of volcanic rocks from Alborán Island, the Alboran Sea floor and from the Gourougou volcanic centre in northern Morocco have been analyzed for major…”
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The petrology and geochemistry of Cretaceous to Recent volcanism in Colombia; the magmatic history of an accretionary plate margin by Marriner, G. F, Millward, D

“…The Pacific margin of Colombia records a complex history of subduction-related magmatism from at least Cretaceous times. Cretaceous lavas from the Western…”
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Geochemical variation in peridotite xenoliths and their constituent clinopyroxenes from Ray Pic (French Massif Central): implications for the composition of the shallow lithospheric mantle by Zangana, N.A, Downes, H, Thirlwall, M.F, Marriner, G.F, Bea, F

“…Anhydrous mantle peridotite xenoliths from a single volcanic vent in the French Massif Central are compositionally varied, ranging from relatively fertile…”
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The petrogenesis of Gorgona komatiites, picrites and basalts: new field, petrographic and geochemical constraints by Kerr, A.C., Marriner, G.F., Arndt, N.T., Tarney, J., Nivia, A., Saunders, A.D., Duncan, R.A.

“…Gorgona Island, Colombia is remarkable not only because it contains the only Phanerozoic komatiites, but also because it has mafic to ultramafic lavas with a…”
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The internal structure of oceanic plateaus: inferences from obducted Cretaceous terranes in western Colombia and the Caribbean by Kerr, Andrew C, Tarney, John, Nivia, Alvaro, Marriner, Giselle F, Saunders, Andrew D

“…Although the structure of mantle plume-derived oceanic plateaus has recently been assessed using remote geophysical techniques combined with petrological…”
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The geochemistry and petrogenesis of the late-Cretaceous picrites and basalts of Curaçao, Netherlands Antilles: a remnant of an oceanic plateau by Kerr, A. C., Tarney, John, Marriner, Giselle F., Klaver, Gerard T., Saunders, Andrew D., Thirlwall, Matthew F.

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Cretaceous tholeiitic volcanic rocks from the Western Cordillera of Colombia by Millward, D, Marriner, G. F, Saunders, A. D

“…The Western Cordillera of Colombia, underlain by crust of probable oceanic character, is constructed almost entirely of Cretaceous sedimentary and volcanic…”
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Isotopic and Trace Element Evidence from Lavas, Bearing on Mantle Heterogeneity Beneath Kenya [and Discussion] by Norry, M. J., Truckle, P. H., Lippard, S. J., Hawkesworth, C. J., Weaver, S. D., Marriner, G. F., Bailey, D. K.

“…Nd, Sr and Pb isotope data, together with new major and trace element data are presented for lavas from northern Kenya. A general trend towards silica…”
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The Quebradagrande Complex: A Lower Cretaceous ensialic marginal basin in the Central Cordillera of the Colombian Andes by Nivia, Alvaro, Marriner, Giselle F., Kerr, Andrew C., Tarney, John

“…The Quebradagrande Complex of Western Colombia consists of volcanic and Albian–Aptian sedimentary rocks of oceanic affinity and outcrops in a highly deformed…”
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Geochemical variation and magmatic cyclicity within an Ordovician continental-arc volcanic field: the lower Borrowdale Volcanic Group, English Lake District by Beddoe-Stephens, Brett, Petterson, Michael G., Millward, David, Marriner, Giz F.

“…The origin, differentiation and temporal evolution of magmas have been examined from the Ordovician lower Borrowdale Volcanic Group (BVG) — a calc-alkaline,…”
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39Ar-40Ar ages and geochemistry of the basaltic shield stage of Tenerife, Canary Islands, Spain: The geology and geophysics of Tenerife by THIRLWALL, M. F, SINGER, B. S, MARRINER, G. F

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Pervasive mantle plume head heterogeneity: Evidence from the late Cretaceous Caribbean-Colombian oceanic plateau by Kerr, Andrew C., Tarney, John, Kempton, Pamela D., Spadea, Piera, Nivia, Alvaro, Marriner, Giselle F., Duncan, Robert A.

“…In SW Colombia picritic pillow lavas and tuffs, as well as breccias composed of picritic clasts, occur interspersed with basalts of the Central Cordillera and…”
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Lateral Chemical Heterogeneity in the Palaeocene Upper Mantle Beneath the Scottish Hebrides [and Discussion] by Morrison, M. Ann, Thompson, R. N., Gibson, I. L., Marriner, G. F., O'Hara, M. J., Pankhurst, R. J.

“…The early major products of Tertiary volcanicity in both Skye and Mull are transitional basic lavas, similar in their major-element chemistry to world-wide…”
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Cretaceous Basaltic Terranes in Western Columbia: Elemental, Chronological and Sr–Nd Isotopic Constraints on Petrogenesis by Kerr, A. C., Marriner, G. F., Tarney, J., Nivia, A., Saunders, A. D., Thirlwall, M. F., Sinton, C. W.

“…Accreted terranes comprising Mid to Late Cretaceous picrites, basalts and dolerites occur in three north–south trending belts in western Colombia, in the…”
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The geochemistry and tectonic setting of late Cretaceous Caribbean and Colombian volcanism by Kerr, Andrew C., Tarney, John, Marriner, Giselle F., Nivia, Alvaro, Klaver, Gerard Th, Saunders, Andrew D.

“…Late Cretaceous mafic volcanic sequences in Western Colombia and in the southern Caribbean have a striking coherence in their chemistry and compositional range…”
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Discussion on the Cretaceous tholeiitic volcanic rocks from the Western Cordillera of Colombia by MCCOURT, W. J, ASPDEN, J. A, MILLWARD, D, MARRINER, G. F, SAUNDERS, A. D

“…Drs W. J. McCourt and J. A. Aspden write: The geological arguments used by Millward et al. 1984 to dismiss an island-arc origin for the Diabase Group (DG) are…”
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Cretaceous tholeiitic volcanic rocks from the Western Cordillera of Colombia@discussion and reply by McCourt, W. J, Aspden, J. A, Millward, D, Marriner, G. F, Saunders, A. D

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