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DOI | 10.1130/B31732.1 |
Terrestrial cooling and changes in hydroclimate in the continental interior of the United States across the Eocene-Oligocene boundary | |
Fan, Majie1; Ayyash, Sara A.1; Tripati, Aradhna2,3,4,5; Passey, Benjamin H.6,8; Griffith, Elizabeth M.7 | |
2018-07-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN |
ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2018 |
卷号 | 130页码:1073-1084 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | One of the most pronounced climate transitions in Earth's history occurred at the Eocene-Oligocene transition, similar to 34.0-33.6 m.y. ago. Marine sedimentary records indicate a dramatic decline in pCO(2) coeval with global cooling during the transition. However, terrestrial records are relatively sparse, with conflicting interpretations of hydroclimate in continental interiors. Here, we provide quantitative constraints on the response of the continental hydroclimate in the western United States across the Eocene-Oligocene boundary by studying clumped isotope temperatures [T(Delta(47))], delta C-13 and delta O-18 values of vadose carbonates, and delta C-13 values of bulk organic matter (delta C-13(org)) in eastern Wyoming. Our results show that T(Delta(47)) dropped from similar to 28 degrees C to similar to 21 degrees C, indicating similar to 7 degrees C cooling in air temperature, which occurred parallel to the decrease in atmospheric pCO(2) during the latest Eocene-early Oligocene. We find that aridity and the biome were stable, and ice-volume-corrected precipitation PO decreased similar to 1.6 parts per thousand across the Eocene-Oligocene boundary, attributable to reduced vapor condensation temperatures. These new quantitative data add to the growing body of evidence suggesting a marked terrestrial response in temperature and hydroclimate across the Eocene-Oligocene transition. Our findings indicate a pattern of greenhouse-gas- induced global temperature change in the continental interior of the United States that was roughly 1.5-2x the magnitude of cooling in the global ocean. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000437009200002 |
WOS关键词 | GROUNDWATER TEMPERATURE RESPONSE ; CLUMPED-ISOTOPE GEOCHEMISTRY ; NORTH-AMERICAN MIDCONTINENT ; CENTRAL ROCKY-MOUNTAINS ; CLIMATE TRANSITION ; NORTHWESTERN NEBRASKA ; ANTARCTIC GLACIATION ; ATMOSPHERIC CO2 ; GREAT-PLAINS ; SPATIAL-DISTRIBUTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24358 |
专题 | 地球科学 |
作者单位 | 1.Univ Texas Arlington, Dept Earth & Environm Sci, 500 Yates St, Arlington, TX 76019 USA; 2.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, 595 Charles E Young Dr E, Los Angeles, CA 90095 USA; 3.Inst Environm & Sustainabil, Dept Atmospher & Ocean Sci, 595 Charles E Young Dr E, Los Angeles, CA 90095 USA; 4.Univ Bretagne Occidentale, European Inst Marine Sci IUEM, UMR 6538 6539, Rue Dumont DUrville, F-29280 Plouzane, France; 5.Inst Francais Rech Exploitat Mer IFREMER, F-29280 Plouzane, France; 6.Johns Hopkins Univ, Morton K Blaustein Dept Earth & Planetary Sci, 3400 N Charles St, Baltimore, MD 21218 USA; 7.Ohio State Univ, Sch Earth Sci, 275 Mendenhall Lab,125 South Oval Mall, Columbus, OH 43210 USA; 8.Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Fan, Majie,Ayyash, Sara A.,Tripati, Aradhna,et al. Terrestrial cooling and changes in hydroclimate in the continental interior of the United States across the Eocene-Oligocene boundary[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2018,130:1073-1084. |
APA | Fan, Majie,Ayyash, Sara A.,Tripati, Aradhna,Passey, Benjamin H.,&Griffith, Elizabeth M..(2018).Terrestrial cooling and changes in hydroclimate in the continental interior of the United States across the Eocene-Oligocene boundary.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,130,1073-1084. |
MLA | Fan, Majie,et al."Terrestrial cooling and changes in hydroclimate in the continental interior of the United States across the Eocene-Oligocene boundary".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 130(2018):1073-1084. |
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