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Global mercury contamination and warming preceded dinosaur extinction, study finds 科技资讯
2019
收藏  |  浏览/下载：1/0  |  提交时间：2019/12/17
Dusting Off the Arid Antiquity of the Sahara 科技资讯
2019
收藏  |  浏览/下载：10/0  |  提交时间：2019/10/14
Students make neutrons dance beneath UC Berkeley campus 科技资讯
2019
收藏  |  浏览/下载：7/0  |  提交时间：2019/09/12
Europe's oldest lake traces 1.36 million years of climate 科技资讯
2019
收藏  |  浏览/下载：1/0  |  提交时间：2019/09/06
Stream sediment geochemistry of four small drainages on the north shore of Kauai west of Hanalei 科技报告
报告编号: 70202027, 页数: 18, 2019
作者:  Takesue, Renee K. rtakesue@usgs.gov;  Storlazzi, Curt D. cstorlazzi@usgs.gov
Adobe PDF(2534Kb)  |  收藏  |  浏览/下载：57/26  |  提交时间：2019/11/06
Rare earth element mineral deposits in the United States 科技报告
报告编号: 70202819, 页数: 24, 2019
作者:  Van Gosen, Bradley S. bvangose@usgs.gov;  Verplanck, Philip L.;  Emsbo, Poul
Adobe PDF(28810Kb)  |  收藏  |  浏览/下载：12/3  |  提交时间：2019/11/06
Petrographic, geochemical, and geochronologic data for cenozoic volcanic rocks of the Tonopah, Divide, and Goldfield Mining Districts, Nevada 科技报告
报告编号: 70200391, 页数: 25, 2019
作者:  du Bray, Edward A. edubray@usgs.gov;  John, David A. djohn@usgs.gov;  Vikre, Peter G. pvikre@usgs.gov;  Colgan, Joseph P. jcolgan@usgs.gov;  Cosca, Michael A. mcosca@usgs.gov;  Morgan, Leah E. lemorgan@usgs.gov;  Fleck, Robert J. fleck@usgs.gov;  Premo, Wayne R. wpremo@usgs.gov;  Holm-Denoma, Christopher S. cholm-denoma@usgs.gov
Adobe PDF(9017Kb)  |  收藏  |  浏览/下载：73/23  |  提交时间：2019/11/06
Radiometric ages of volcanic rocks on the fort rock dome and in the aquarius mountains, Yavapai and Mohave Counties, Arizona 科技报告
报告编号: 70203062, 页数: 18, 2019
作者:  Fuis, Gary S.;  Calvert, Andrew T. acalvert@usgs.gov;  Sullivan, Katie
Adobe PDF(12289Kb)  |  收藏  |  浏览/下载：10/3  |  提交时间：2019/11/06
Geology and assessment of undiscovered oil and gas resources of the Northwest Canada Interior Basins Province, Arctic Canada 科技报告
报告编号: 70187345, 页数: 18, 2019
作者:  Tennyson, Marilyn E. tennyson@usgs.gov;  Pitman, Janet K. jpitman@usgs.gov
Adobe PDF(2925Kb)  |  收藏  |  浏览/下载：76/18  |  提交时间：2019/11/06
Petrology of volcanic rocks associated with silver-gold (Ag-Au) epithermal deposits in the Tonopah, Divide, and Goldfield Mining Districts, Nevada 科技报告
报告编号: 70202841, , 2019
作者:  du Bray, Edward A. edubray@usgs.gov;  John, David A. djohn@usgs.gov;  Colgan, Joseph P. jcolgan@usgs.gov;  Vikre, Peter G. pvikre@usgs.gov;  Cosca, Michael A. mcosca@usgs.gov;  Morgan, Leah E. lemorgan@usgs.gov
Adobe PDF(1740Kb)  |  收藏  |  浏览/下载：49/20  |  提交时间：2019/11/06