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Yemane Asmerom
Researcher at University of New Mexico
Publications - 164
Citations - 9474
Yemane Asmerom is an academic researcher from University of New Mexico. The author has contributed to research in topics: Cave & Holocene. The author has an hindex of 44, co-authored 155 publications receiving 8174 citations. Previous affiliations of Yemane Asmerom include Harvard University.
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The half-lives of uranium-234 and thorium-230
Hai Cheng,Richard Lawrence Edwards,J.A. Hoff,Christina D. Gallup,David Richards,Yemane Asmerom +5 more
TL;DR: In this article, the authors used high precision thermal ionization mass spectrometric (TIMS) methods to determine the half-life of zircons with concordant 238 U/ 238 U and 230 Th / 238 U atomic ratios.
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Improvements in 230Th dating, 230Th and 234U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry
Hai Cheng,Hai Cheng,R. Lawrence Edwards,Chuan-Chou Shen,Victor J. Polyak,Yemane Asmerom,Jon Woodhead,John Hellstrom,Yongjin Wang,Xinggong Kong,Christoph Spötl,Xianfeng Wang,E. Calvin Alexander +12 more
TL;DR: In this paper, the authors used multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) to measure the half-life of stalagmite stalagmites.
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Development and Disintegration of Maya Political Systems in Response to Climate Change
Douglas J. Kennett,Sebastian F. M. Breitenbach,Valorie V. Aquino,Yemane Asmerom,Jaime J. Awe,James U.L. Baldini,Patrick J. Bartlein,Brendan J. Culleton,Claire E. Ebert,Christopher S. Jazwa,Martha J. Macri,Norbert Marwan,Victor J. Polyak,Keith M. Prufer,Harriet E. Ridley,Harald Sodemann,Bruce Winterhalder,Gerald H. Haug +17 more
TL;DR: A precisely dated subannual climate record for the past 2000 years from Yok Balum Cave, Belize is presented and it is proposed that anomalously high rainfall favored unprecedented population expansion and the proliferation of political centers between 440 and 660 C.E.
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Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034
Carl B. Agee,Nicole V. Wilson,Francis M. McCubbin,Karen Ziegler,Victor J. Polyak,Zachary D. Sharp,Yemane Asmerom,M. Nunn,R. Shaheen,Mark H. Thiemens,Andrew Steele,Marilyn L. Fogel,R. Bowden,Mihaela Glamoclija,Zhisheng Zhang,Zhisheng Zhang,Stephen M. Elardo +16 more
TL;DR: Detailed analysis of a meteorite shows that it matches the surface of Mars yet is unlike any other martian meteorite, which suggests the existence of multiple oxygen isotopic reservoirs within Mars.
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Variable winter moisture in the southwestern United States linked to rapid glacial climate shifts
TL;DR: In this paper, a record of precipitation in the southwestern United States from 56,000 to 11,000 years ago, on the basis of δ18O measurements of speleothem calcite from New Mexico, was presented.