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    Sources of upper Permian sedimentary rocks in the Bogda Mountains, NW China

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    Date
    2010-04-23
    Author
    Guan, Wei
    Jeffrey, Brad M.
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    Citation
    Guan, W. and B. Jeffrey (2010). Sources of upper Permian sedimentary rocks in the Bogda mountains, NW China. -- In Proceedings: 6th Annual Symposium: Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p. 113-114
    Abstract
    Both distant Tianshan suture zone and proximal local horsts are possible sources of Upper Permian sedimentary rocks exposed in the BogdaMountains. The Abundance of volcanic grains indicates the former was the main source. Paleocurrent direction further suggests the sole main source located to the south, which is consistent with that the Tianshan suture zone is the main source. Sandstone petrographic data show two petrofacies, A and B (QFL = 5:7:88 and 32:8:60). The change from A to B suggests that the Tianshan suture zone evolved from an undissected to a transitional arc during unroofing; upsection increase of phaneritic clasts (from 3 to 14%) in conglomerates supports the interpretation.
    Description
    Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.

    Research completed at the Department of Geology, College of Liberal Arts and Sciences
    URI
    http://hdl.handle.net/10057/3198
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    • Proceedings: 6th Annual Symposium: Graduate Research and Scholarly Projects [95]
    • GEO Graduate Student Conference Papers [15]

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