Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 1003487 |
| P2C2: Seasonality from Speleothems--High-Resolution Ion Microprobe Studies at Soreq Cave, Israel | |
| John Valley | |
| 主持机构 | University of Wisconsin-Madison |
| 开始日期 | 2010-08-15 |
| 结束日期 | 2013-07-31 |
| 资助经费 | 163771(USD) |
| 项目类别 | Standard Grant |
| 资助机构 | US-NSF（美国国家科学基金会） |
| 项目所属计划 | PALEOCLIMATE PROGRAM |
| 语种 | 英语 |
| 国家 | 美国 |
| 英文简介 | This project applies new high-resolution micro-analytical techniques to speleothems from Soreq Cave (Israel). The climate goal is to examine hydrological seasonality as recorded in cave deposits during periods of climatic change such as the last glacial maximum (LGM), the transition from the LGM to the interglacial (including Heinrich event H1,Bølling-Allerød, and the Younger Dryas), and other extreme wet and drought events during the Holocene. The analytical goal of the project is to develop annual to sub-annual time resolution in the isotope and trace element records across multiple time intervals since the LGM. Specifically, the researcher and his colleagues will employ an ion microprobe to analyze stable isotope ratios (Oxygen & Carbon) and trace elements at sub-annual resolution; confocal laser fluorescent microscopy to image annual growth bands; and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-mass spectrometry) to determine the age of calcite precipitation. The primary broader impacts involve exploring new analytical tools for climate research, examining climate forcing and impacts in arid regions, supporting a graduate student, and promoting strong international collaborations. |
| 来源学科分类 | Geosciences |
| URL | https://www.nsf.gov/awardsearch/showAward?AWD_ID=1003487 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/342574 |
| 推荐引用方式 GB/T 7714 | John Valley.P2C2: Seasonality from Speleothems--High-Resolution Ion Microprobe Studies at Soreq Cave, Israel.2010. |
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