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    Keith 1981 SW AZ overthrust oil gas play update
    September 29, 2020
    Annis Keith 1986 post-Laramide igneous rocks AZ
    September 29, 2020

    Swan Keith 1986 anorogenic granitoids N Am oblique subduction

    By: Magma Chem Research Institute

    $0.00

    Abstract
    3-2.5 Keith, S.B., 1986, Petrochemical variations in Laramide magmatism and their relationship to Laramide tectonic and metallogenic evolution in Arizona and adjacent regions: Arizona Geological Society Digest, v. 16, p. 89-101.

    Categories: Membership Publications, Plutonism and Tectonism, Publication
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    Description

    Abstract
    3-2.5 Keith, S.B., 1986, Petrochemical variations in Laramide magmatism and their relationship to Laramide tectonic and metallogenic evolution in Arizona and adjacent regions: Arizona Geological Society Digest, v. 16, p. 89-101.

    ABS
    Petrochemical serial variations of Laramide (85 – 43 Ma) magmatism in Arizona and adjacent regions can be empirically linked to Laramide tectonic and metallogenic evolution. This communication represents petrochemical data for various Laramide age igneous rocks. The Laramide igneous rocks are major components of regional, sequentially overprinted stratotectonic assemblages that generally migrate eastward with decreasing age. Definition and detailed discussion of the rocks and structures associated with the stratotectonic assemblages are presented in Keith and Wilt (1986). This paper will concentrate on petrogenetic and metallogenic description and interpretation of Laramide magmatism and its closely associated metallogeny . Variation diagrams and the fields shown on them for Laramide magmatism are based on a worldwide chemical classification of igneous rock series being developed by the author. Empirical relationships between petrochemistry of igneous rocks and metal contents of associated mineral deposits have led to this classification.

    Key words
    Arizona. California. chemical composition. composition. economic geology. emplacement. evolution. Hisslboro Assemblage. igneous activity. igneous processes. igneous rocks. Laramide Orogeny. magma series. magmas. metal ores. metallogeny. mineral deposits, genesis. New Mexico. subduction. Tombstone Assemblage. United States.

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    Abstract
    3-2.5 Keith, S.B., 1986, Petrochemical variations in Laramide magmatism and their relationship to Laramide tectonic and metallogenic evolution in Arizona and adjacent regions: Arizona Geological Society Digest, v. 16, p. 89-101.

    ABS
    Petrochemical serial variations of Laramide (85 – 43 Ma) magmatism in Arizona and adjacent regions can be empirically linked to Laramide tectonic and metallogenic evolution. This communication represents petrochemical data for various Laramide age igneous rocks. The Laramide igneous rocks are major components of regional, sequentially overprinted stratotectonic assemblages that generally migrate eastward with decreasing age. Definition and detailed discussion of the rocks and structures associated with the stratotectonic assemblages are presented in Keith and Wilt (1986). This paper will concentrate on petrogenetic and metallogenic description and interpretation of Laramide magmatism and its closely associated metallogeny . Variation diagrams and the fields shown on them for Laramide magmatism are based on a worldwide chemical classification of igneous rock series being developed by the author. Empirical relationships between petrochemistry of igneous rocks and metal contents of associated mineral deposits have led to this classification.

    Key words
    Arizona. California. chemical composition. composition. economic geology. emplacement. evolution. Hisslboro Assemblage. igneous activity. igneous processes. igneous rocks. Laramide Orogeny. magma series. magmas. metal ores. metallogeny. mineral deposits, genesis. New Mexico. subduction. Tombstone Assemblage. United States.

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