A major element geochemical study of Laramide igneous rocks of the Colorado mineral belt

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dc.contributor.advisorBurchfiel, B. C.en_US
dc.creatorLux, Daniel R.en_US
dc.date.accessioned2018-12-18T21:16:14Zen_US
dc.date.available2018-12-18T21:16:14Zen_US
dc.date.issued1977en_US
dc.description.abstractMajor element chemical analyses for igneous rock samples from the Colorado mineral belt are presented along with chemical analyses from the literature. Petrographic data which was collected is also presented. Samples range from basaltic to granitic compositions but rocks with intermediate silica contents are most common. Data indicates that these rocks have calcalkaline characteristics, with the exception of one sample which is silica-undersaturated. Lead and strontium isotopic data taken from the literature, suggest that source materials in the lower crust are 17 to 18 m.y. old. The association in time and space suggest Laramide structural deformation and igenous activity are related. However, it appears that Precambrian structures control the emplacement of Laramide igneous rocks along the Colorado mineral belt. Distribution of ore deposits and Pb isotopic values for ores are in agreement with partial melting of Precambrian lower crust. Models involving the generation of Laramide igneous rocks by melting along a subduction zone are considered unfavorable.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent81 ppen_US
dc.identifier.callnoThesis Geol. 1977 Luxen_US
dc.identifier.citationLux, Daniel R.. "A major element geochemical study of Laramide igneous rocks of the Colorado mineral belt." (1977) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/104014">https://hdl.handle.net/1911/104014</a>.en_US
dc.identifier.digitalRICE1640en_US
dc.identifier.urihttps://hdl.handle.net/1911/104014en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titleA major element geochemical study of Laramide igneous rocks of the Colorado mineral belten_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEarth Scienceen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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