Global ETD Search

51	Emplacement history of the Pearly Gates anorthosite pluton and spatially related Tessiarsuyungoakh intrusion, and metamorphic petrology of the adjacent Tasiuyak paragneiss, northern Labrador / Tettelaar, Tanya Anne, January 2004 (has links) Thesis (M.Sc.)--Memorial University of Newfoundland, 2005. / Includes bibliographical references. Also available online.
52	Plagioclase zoning profiles of a small pluton in Arizona Williams, Paul January 1981 (has links) No description available. Plagioclase. Stocks (Geology)
53	A Comparative Study of the Badger Pass Igneous Intrusion and the Foreland Volcanic Rocks of the McDowell Springs Area, Beaverhead County, Montana: Implications for the Local Late Cretaceous Sequence of Events Gallagher, Brookie Jean 24 April 2008 (has links) Intermediate igneous rocks exposed in the Badger Pass area and 3.5 km away in the McDowell Springs area of Beaverhead County, Montana, previously mapped as Cretaceous intrusive (Ki), and Cretaceous undifferentiated volcanics (Kvu) respectively, exhibit little geochemical variation. Trace element, and lead isotope analyses provide strong evidence allowing for a single source. REE patterns, obtained through ID-ICP-MS, are essentially identical. Mineral/melt Eu analyses reveal that Eu behaved predominantly as a divalent cation, refuting an earlier study asserting that trivalent Eu dominated. Data suggest rocks were formed under low oxygen activity conditions, not oxidizing conditions as previously reported. Geochemical data combined with field mapping allow us to establish the temporal relationship between late Cretaceous thrusting, intrusion, and volcanism in this locale. Folding, faulting and thrusting were significantly, if not entirely, completed prior to the commencement of volcanism. Volcanism included contemporaneous thrust plate intrusion, foreland extrusion, and hypabyssal foreland intrusion. Andesite southwest Montana volcaniclastic rocks Cretaceous intrusions Geography Geology
54	Plutonism and tectonic evolution of the Ras Gharib segment of the northern nubian shield, Egypt Abdel-Rahman, Abdel-Fattah Mostafa January 1986 (has links) No description available. Geology, Stratigraphic Plate tectonics -- Egypt. Intrusions (Geology) Geochemistry -- Egypt.
55	The intrusive rocks of the Hepburn metamorphic-plutonic zone of the central Wopmay Orogen, N.W.T. / Lalonde, André E. January 1986 (has links) No description available. Batholiths -- Northwest Territories. Geology, Structural
56	Origin of the permian panzhihua layered gabbroic intrusion and the hosted Fe-Ti-V oxide deposit, Sichuan Province, SW China Pang, Kwan-Nang. January 2008 (has links) Thesis (Ph. D.)--University of Hong Kong, 2008. / Also available in print.
57	A petrochemical study of the Mount Fubilan Intrusion and associated ore bodies, Papua New Guinea Doucette, John. January 1900 (has links) (PDF) Thesis (Ph.D.)--Oregon State University, 2000. / Includes bibliographical references (leaves 359-373).
58	Reactions between country rock xenoliths and the magma of Uitkomst Complex, with implications for the origin of the sulphide mineralisation Hulley, Vierah. January 2005 (has links) Thesis (M. Sc.(Geology))-University of Pretoria, 2005. / Includes bibliographical references. Mode of access: World Wide Web.
59	A study of the igneous intrusive rocks of the Dunnage Melange, Newfoundland / Lorenz, Brenna Ellen. January 1984 (has links) Thesis (Ph.D.)--Memorial University of Newfoundland, 1985. / Typescript. Bibliography : leaves 211-220. Also available online.
60	Geology of Mesoproterozoic anorthosite intrusions in the vicinity of Nain, Labrador / Voordouw, Ronald Jaap. January 2006 (has links) Thesis (Ph.D.)--Memorial University of Newfoundland, 2006. / Restricted until October 2007. Bibliography: leaves 303-340. Also available online.

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