Neogene Climatic and Depositional Evolution of the Eastern Basin and Range: Integrated Paleoecologic and StratigraphicAnalyses of the Great Salt Lake, Utah

pi将通过整合大盐湖的古生态、地层和地震数据，分析盆地东部和山脉（US）新近纪的气候和沉积演化。材料来源是Amoco，包括岩心、岩屑、样品和地震线。ıPIs获得了TEctonics项目的盆地分析方面的资助。主要目的是验证最近提出的关于北美西部新近纪气候变化的假设：1)记录新近纪凉爽、干燥气候的开始和发展；2)通过对tephras和玄武岩的辐射测年来发展年代学；3)从单一地区产生详细的气候记录，目前只能从不同沉积物的重叠片段中知道这段时间。他们还将a)开发大盆地新近系植被演化的年代学，b)进行GSL的新近系古湖泊学研究，c)研究冰期/间冰期气候旋回的开始和演化。

PIs will analyze Neogene climatic and depositional evolution of the eastern Basin and Range (US) by integrating paleoecologic, stratigraphic and seismic data from the Great Salt Lake. Source of material is Amoco and includes cores, cuttings, samples, and seismic lines. ıPIs have funding from TEctonics program for basin analysis aspects of project.! Primary objective is to test hypotheses of climate change recently proposed for Neogene of western North America by 1) documenting onset and development of cool, dry climate in Neogene, 2) developing chronology through radiometric dates on tephras and basalts, 3) producing detailed climate record from a single region, for a time now known only from overlapping segments from diverse deposits. They will also a) develop a chronology for Neogene evolution of vegetation in the Great Basin, b) produce Neogene paleolimnologic study of GSL, c) study onset and evolution of glacial/interglacial climatic cycles.