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Showing 1 to 20 of 85 for “"Igneous rocks"”.

  1. Attenuation in igneous rocks at seismic frequencies

    Cooper, Herman WilliamMassachusetts Institute of Technology1979

    Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1979.

    mit Repository record

  2. Geochemistry of Precambrian igneous rocks in the lower Orange River region

    Reid, David LouisDepartment of Geological Sciences1977

    cape-town Repository record

  3. Fixation of zirconium fuel reprocessing wastes in vitrified igneous rocks and industrial slags

    Ketcham, David Leroy.Massachusetts Institute of Technology1960

    Thesis: M.S., Massachusetts Institute of Technology, Department of Civil and Sanitary Engineering, 1960

    mit Repository record

  4. Geochemistry of igneous rocks from the southern coast belt plutonic complex, southwestern British Columbia

    Cui, YaoUniversity of British Columbia1993

    … data for calc-alkaline plutonic and volcanic rocks collected along a 180 km transect from Vancouver to Anderson Lake in the southern Coast Plutonic Complex (CPC), southwestern British Columbia. The southern CPC comprises mainly Jurassic to Tertiary plutonic rocks, ranging in composition from …

    ubc Repository record

  5. The isotopic composition of sulfur in the triassic igneous rocks of eastern United States

    Smitheringale, William George, 1931-Massachusetts Institute of Technology1962

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology, 1962.

    mit Repository record

  6. Petrology of the Cenozoic igneous rocks of the Lytle Creek area, Bear Lodge Mountains, Wyoming

    White, Stanely F.

    … to map and study the petrology of the Cenozoic igneous rocks that crop out in the Lytle Creek area located in the southwestern Bear Lodge Mountains of northeastern Wyoming. Petro graphic and chemical data is used to interpret the Cenozoic phonolite trachyte rock association.</p> <p>Cenozoic …

    nodak Repository record

  7. Petrology of the Cenozoic igneous rocks of the Tinton district, Black Hills, South Dakota - Wyoming

    Ray, John T.

    … with marginal exposures of Paleozoic sedimentary rocks which dip radially outward on all sides. The area was intruded by Cenozoic igneous rocks that include a stock of quartz latite/quartz trachyte porphyry, an alkalic ring dike complex, lamprophyre dikes and intrusive breccia.</p> <p>Precambrian …

    nodak Repository record

  8. Delineation of Igneous Rocks on Western Axel Heiberg Island Using Geopotential Data and Satellite Imagery

    Mosstajiri, TinaGraduate Studies2013

    … different methods for remotely mapping the igneous rocks and their host sedimentary rocks on Axel Heiberg Island, using the already available data sets. Axel Heiberg Island has been chosen as the platform for establishing the most suitable method of mapping igneous rocks and other geological …

    calgary Repository record

  9. The Sr⁸⁷/Sr⁸⁶ ratio in oceanic and continental basalts and the origin of igneous rocks

    Faure, GunterMassachusetts Institute of Technology1961

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology, 1961.

    mit Repository record

  10. Alkaline igneous rocks of the coastal belt, south of Luderitz, South West Africa : a petrological study

    Marsh, Julian SavilleDepartment of Geological Sciences1973

    … is preserved a large fragment of sedimentary rocks that originally formed the roof of the intrusion. The foyaites have been emplaced into the feldspathic sandstones and dolomites of the Bogenfels Formation, and three major intrusive phases can be recognised. The first phase produced chilled …

    cape-town Repository record

  11. Testing Precambrian continental reconstructions using ion microprobe U-Pb baddeleyite geochronology and paleomagnetism of mafic igneous rocks

    Wingate, Michael Thomas David1997

    aus-cath Repository record

  12. Testing Precambrian continental reconstructions using ion microprobe U-Pb baddeleyite geochronology and paleomagnetism of mafic igneous rocks

    Wingate, Michael Thomas David1997

    anu Repository record

  13. Some aspects of the geochemistry of platinum, palladium, and gold in igneous rocks with special reference to the Bushveld Complex, Transvaal

    Hagen John CMassachusetts Institute of Technology1954

    Thesis. (Ph.D.) Massachusetts Institute of Technology. Dept. of Geology and Geophysics, 1954.

    mit Repository record

  14. Geochemical processes in the earth's mantle and the nature of crust-mantle interactions : evidence from studies of Nd and Sr isotope ratios in mantle-derived igneous rocks and lherzolite nodules

    Zindler, AlanMassachusetts Institute of Technology1980

    Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1980.

    mit Repository record

  15. Igneous life cycles: geochemistry of magma from mantle to surface and back again

    Allen, Sydney MarieRice University2023

    … from the interior of the Earth to the surface in igneous rocks. The chemistry of igneous rocks record snapshots of this complex history. Here, we use three major projects to assess important processes in this life cycle. Continental arc volcanism generates a wide diversity of magma compositions, …

    rice Repository record

  16. ΜΕΤΑΛΛΟΓΕΝΕΣΗ ΤΗΣ ΤΡΙΤΟΓΕΝΟΥΣ ΘΕΙΟΥΧΟΥ ΜΕΤΑΛΛΟΦΟΡΙΑΣ ΠΕΡΙΟΧΗΣ ΑΙΣΥΜΗΣ ΝΟΜΟΥ ΕΒΡΟΥ

    Katirtzoglou, Konstantinos, Κατιρτζόγλου, ΚωνσταντίνοςNational and Kapodistrian University of Athens1986

    … IT IS MADE UP FROMSEDIMENTARY AND VOLCANIC ROCKS. THE SEDIMENTARY SEQUENCE CONSISTS OF ALTERNATIONS OF ARENACEOUS AND ARGILLACEOUS ROCKS, WHEREAS THE IGNEOUS ROCKS COMPRISE SUBVOLCANIC INTRUSIVES, LAVAS AND PYROCLASTICS. THE VOLCANIC ROCKS ARE ANDESITES AND DACITES OF ANDEAN- TYPE …

    greece Repository record

  17. Petrogenesis of the Moosehorn igneous complex, Maine

    Jurinski, Joseph B.Virginia Tech1990

    … Province suggest a bimodal distribution of igneous rocks in both space and time. The earlier magmatic event is represented by the development of large igneous complexes which occur along a magmatic axis extending from Calais to Penobscot Bay, Maine. These complexes are dominated by mafic …

    vt Repository record

  18. The geology of China

    Lee, J. S., Li, SiguangUniversity of Birmingham1918

    … Triassic-jurassic. Post jurassic. Chapter V Igneous rocks in China. Chapter VI General geological structure of China. Chapter VII The geological history of China. SECTION III Economic geology Chapter VIII The economic aspect of Chinese geology. A. Coal fields. B. Oil fields. C. Ore deposits. …

    birmingham Repository record

  19. Geochemical and isotopic constraints on the source regions of phanerozoic carbonatites and associated alkaline rocks from the Zandkopsdrift complex of Namaqualand, South Africa, and the Marinkas Quellen, and Dicker Willem complexes in Namibia

    Ogungbuyi, Ibiyemi PriscaDepartment of Geological Sciences2020

    … carbonatites and related alkaline silicate rocks from Zandkopsdrift in Namaqualand, South Africa (55 Ma), and Marinkas Quellen (529 Ma), and Dicker Willem (49 Ma) in southern Namibia, all emplaced within the Proterozoic Namaqua Natal province. The aims of this thesis are to characterise …

    cape-town Repository record

  20. Geochemistry and petrology of the Lake Vermilion Formation, Ely Greenstone Belt, northeastern Minnesota

    Robinson, Scott E.

    … Y, and Ni were slightly mobile. Chemically the rocks resemble modern spilites and keratophyres. </p><p> The dacites and basalts are depleted in Ti, Zr, and Y relative to Tertiary igneous rocks of similar composition. The Lake Vermilion Formation basalts display a volcanic arc basalt trend of …

    nodak Repository record

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