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Mineral compositions calculated from chemical analyses of sedimentary rocks

2003; Society for Sedimentary Geology; Volume: 29; Issue: 4 Linguagem: Inglês

10.1306/74d709a2-2b21-11d7-8648000102c1865d

1938-3681

John Imbrie, Arie Poldervaart,

Hydrocarbon exploration and reservoir analysis

Other| December 01, 1959 Mineral compositions calculated from chemical analyses of sedimentary rocks John Imbrie; John Imbrie Search for other works by this author on: GSW Google Scholar Arie Poldervaart Arie Poldervaart Search for other works by this author on: GSW Google Scholar Author and Article Information John Imbrie Arie Poldervaart Publisher: SEPM Society for Sedimentary Geology First Online: 03 Mar 2017 Online ISSN: 1938-3681 Print ISSN: 1527-1404 GeoRef, Copyright 2006, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States Journal of Sedimentary Research (1959) 29 (4): 588–595. https://doi.org/10.1306/74D709A2-2B21-11D7-8648000102C1865D Article history First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation John Imbrie, Arie Poldervaart; Mineral compositions calculated from chemical analyses of sedimentary rocks. Journal of Sedimentary Research 1959;; 29 (4): 588–595. doi: https://doi.org/10.1306/74D709A2-2B21-11D7-8648000102C1865D Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyJournal of Sedimentary Research Search Advanced Search Abstract A method is described for routine calculation of mineralogical compositions from chemical analyses of sedimentary rocks. Although designed for the particular mineral suites found in the Florena Shale (a mid-continent Permian argillaceous unit containing calcite, dolomite, chert, and clay as major constituents), it can be adapted with slight modification for use with a wide variety of sedimentary rock types. After restating the bulk analysis in terms of molecular ratios, TiO2 , Na2O, P2O5, SO3, and S are disposed of as rutile, albite, apatite, gypsum, and pyrite. Next, all of the CaO and CO2 and as much MgO as is required, are used to form calcite and dolomite. The balance of the MgO and all of the K2O are then used to form illite and either sericite or chlorite, depending on the relative amounts of MgO and K2O. Residual Fe2O3 and Al2O3 are computed as montmorillonite and residual SiO2 is regarded as chert. Results of computation compare well with X-ray and insoluble residue data and the method is judged to provide an estimate of the proportions of clay, dolomite, calcite, and chert accurate to within 5 per cent. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.