New evidence for an extended occupation of the Provo shoreline and implications for regional climate change, Pleistocene Lake Bonneville, Utah, USA
New evidence for an extended occupation of the Provo shoreline and implications for regional climate change, Pleistocene Lake Bonneville, Utah, USA
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美国犹他州更新世博纳维尔湖普罗沃海岸线长期占领的新证据及其对区域气候变化的影响
DOI：
10.1016/j.yqres.2005.01.002
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发表时间：
2005
影响因子：
2.3
通讯作者：
M. Chan
中科院分区：
文献类型：
--
作者：
H. Godsey;Donald R. Currey;M. Chan
邦纳维尔湖是一个气候敏感的封闭盆地湖泊，在更新世晚期占据了东部大盆地。不断努力完善湖泊水位的历史记录是重要的，破译气候条件的Bonneville盆地和促进与区域和全球气候变化记录的相关性。这项研究和其他研究的放射性碳数据表明，该湖在普罗沃水位或附近的振荡时间比目前的湖水位变化模型所描述的要长得多。放射性碳数据还表明，湖泊从阈值控制下降的速度比以前想象的要快得多。这些修订邦纳维尔湖水文过程，再加上独立的证据，气候变化的植被和冰川记录，有重要的影响，在邦纳维尔盆地的条件，并在更新世到全新世过渡。
Lake Bonneville was a climatically sensitive, closed-basin lake that occupied the eastern Great Basin during the late Pleistocene. Ongoing efforts to refine the record of lake level history are important for deciphering climate conditions in the Bonneville basin and for facilitating correlations with regional and global records of climate change. Radiocarbon data from this and other studies suggest that the lake oscillated at or near the Provo level much longer than depicted by current models of lake level change. Radiocarbon data also suggest that the lake dropped from threshold control much more rapidly than previously supposed. These revisions to the Lake Bonneville hydrograph, coupled with independent evidence of climate change from vegetation and glacial records, have important implications for conditions in the Bonneville basin and during the Pleistocene to Holocene transition.