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The Colorado River and its deposits downstream from Grand Canyon in Arizona, California, and Nevada [研究报告]
10.3133/ofr20181005U.S. Geological Survey. 2018-01-01
Crow, Ryan S. rcrow@usgs.gov;  Block, Debra L. dblock@usgs.gov;  Felger, Tracey J. tfelger@usgs.gov;  House, P. Kyle khouse@usgs.gov;  Pearthree, Philip A.;  Gootee, Brian F. bgootee@email.arizona.edu;  Youberg, Ann M.;  Howard, Keith A. khoward@usgs.gov;  Beard, L. Sue sbeard@usgs.gov
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Geologic map of the northern White Hills, Mohave County, Arizona [研究报告]
10.3133/sim3372U.S. Geological Survey. 2017-01-01
Howard, Keith A. khoward@usgs.gov;  Priest, Susan S. spriest@usgs.gov;  Lundstrom, Scott C. sclundst@usgs.gov;  Block, Debra L. dblock@usgs.gov
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Stratigraphy and paleogeographic significance of the Pennsylvanian-Permian Bird Spring Formation in the Ship Mountains, southeastern California [研究报告]
10.3133/sir20135109U.S. Geological Survey. 2013-01-01
Stone, Paul pastone@usgs.gov;  Stevens, Calvin H.;  Howard, Keith A. khoward@usgs.gov;  Hoisch, Thomas D.
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