u.s. geological survey publications warehousepubs.usgs.gov/pp/0421a/plate-2.pdf · ppp p pg pikes...
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- U.S. Geological Survey Publications Warehousepubs.usgs.gov/pp/0421a/plate-2.pdf · ppp p pg Pikes Peak granite ppg, coarse-grained moderate reddish-orange granite composed of microperthite,
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Post on 28-Jul-2020
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