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Mineralogy, Geochemistry, Metamorphism, and Provenance of the Early Proterozoic Metamorphic Rocks of the Central Front Range, Colorado (U.S. , 1562) ebook

by Dolores J. Gable


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Geological Survey, Description. 186 p. (some folded) :ill. maps ;28 cm. Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. More information about viewing, downloading, and printing report files can be found here.

Early Proterozoic oceanic crust in the northern Colorado Front Range: Implications for crustal growth . Petrology, geochemistry, and geochronology of Proterozoic granitoid and related rocks of the northern Mummy Range, north-central Colorado: Rocky Mountain Geology.

Early Proterozoic oceanic crust in the northern Colorado Front Range: Implications for crustal growth and initiation of basement faults: Tectonics. Cavosie, . and Selverstone, . 2003, Early Proterozoic oceanic crust in the northern Colorado Front Range: Implications for crustal growth and initiation of basement faults: Tectonics, v. 22, no. 2, p. 10-1-10-23, doi:10.

Range, Colorado (. .

com: Mineralogy, Geochemistry, Metamorphism, and Provenance of the Early Proterozoic Metamorphic Rocks of the Central Front Range, Colorado (. Dolores J. Gable Mineralogy, Geochemistry, Metamorphism, and Provenance of the Early Proterozoic Metamorphic Rocks of the Central Front Range, Colorado (. ISBN 13: 9789995311063.

Gable DJ (1986) Provenance and metamorphism of early Proterozoic rocks of the central Front Range .

Gable DJ (1986) Provenance and metamorphism of early Proterozoic rocks of the central Front Range, Colorado. Geol Soc Am 18:607Google Scholar. Gable DJ, Sims PK (1969) Geology and regional metamorphism of some high-grade cordierite gneisses, Front Range, Colorado. Geol Soc Am Spec Pap 128:87Google Scholar. Gable DJ, Sims PK, Weiblen PW (1970) Thermal metamorphism of otite gneiss, Front Range, Colorado. J Geol 78:661–685Google Scholar

Mineralogy and geochemistry of microgranular enclaves in Palaeoproterozoic Malanjkhand granitoids, central India .

Mineralogy and geochemistry of microgranular enclaves in Palaeoproterozoic Malanjkhand granitoids, central India: evidence of magma mixing, mingling,. Petrography of the host rocks and ores The area forms part of the Karelian (Early Proterozoic) Peräpohja Schist Belt, which has recently been mapped by Perttunen (1971, 1980, 1983, 1985, 1989). This Belt consists of a quartzitedominated lower supracrustal sequence ( Jatuli ) deposited nonconformably on the late Archaean Pudasjärvi granitoid-gneiss complex and overlain by a thick monotonous sequence of metapelites ( Kaleva ).

Geochemistry and provenance of the Miocene sandstones of the Surma group from the Sitapahar . Microtextures of Igneous and Metamorphic Rocks. Early Proterozoic metasediments from north-central Colorado. Geological Society of America Bulletin 94, 1215–24.

Geochemistry and provenance of the Miocene sandstones of the Surma group from the Sitapahar anticline, Southeastern Bengal Basin, Bangladesh. Journal of the Geological Society of India, Vol. 83, Issue. Dordrecht: D. Reidel, 264 pp. Basu, A. 1985. Cressman, E. R. 1989. Reconnaissance Stratigraphy of the Prichard Formation (Middle Proterozoic) and the Early Development of the Belt Basin, Washington, Idaho, and Montana.

At the temperature of metamorphism calcite reacted with the minerals of the shale.

Kurt Bucher University Freiburg Mineralogy Geochemistry Albertstr. 23 B 79104 Freiburg Germany [email protected] Metamorphic rocks are rocks that have developed their mineralogical and structural characteristics by metamorphic processes. The most typical metamorphism transforms sedimentary rocks to metamorphic rocks by addition of heat during mountain building or by a large volume of magma in the crust. At the temperature of metamorphism calcite reacted with the minerals of the shale. The reaction produced concentrically zoned nodules consisting of the Ca-silicates anorthite, wollastonite and diopside, so-called calcsilicate rocks (Fig.

All these rocks of the Central Angara terrane were intruded by the Tatar-Ayakhta calc-alkaline granites with the age . The comparison of compositions of metamorphic rocks and their sulfurized kinds is demonstrated a complete harmony

All these rocks of the Central Angara terrane were intruded by the Tatar-Ayakhta calc-alkaline granites with the age of 760 Ma (Vernikovskaya et a. 2003) and by smaller bodies of the Glushikha. The comparison of compositions of metamorphic rocks and their sulfurized kinds is demonstrated a complete harmony. It is previously confirmed differences in the composition of rocks from middle and upper section of the Corda formation only, but not a variety between host and ore-bearing rocks.

Mineralogy, Geochemistry, Metamorphism, and Provenance of the Early Proterozoic Metamorphic Rocks of the Central Front Range, Colorado (U.S. , 1562) ebook
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Dolores J. Gable
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