COLLABORATIVE RESEARCH: Iridium Deposition in Central Greenland Ice: Temporal Variability of Cosmic and Volcanic Sources
COLLABORATIVE RESEARCH: Iridium Deposition in Central Greenland Ice: Temporal Variability of Cosmic and Volcanic Sources
批准号:
9316183
负责人:
Robert Sherrell
金额:
$8.5万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1994
资助国家:
美国
项目状态:
已结题
起止时间:
1994-08-15 至 1998-07-31
中文摘要
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英文摘要
9316183 Sherrell PIs have found iridium (Ir) anomalies in ice cores associated with the 1908 Tunguska event and the 1783 Laki eruption. In collabooration with Robert Rocchia (Paris), they will extend these analyses to other ice cores with the following goals: 1) test and verify findings, 2) make systematic studies on ice core samples to clarify partitioning of Ir, and 3) investigate temporal variability of background Ir deposition. Results have implications for debate over impact vs. volcanic sources for iridium in the stratigraphic record, and also for linking volcanism and impacts to climatic changes.
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批准号:2220306
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项目类别:Standard Grant
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资助金额:$19.49万
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财政年份:2022
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负责人:Robert Sherrell
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依托单位:
Collaborative Research: Management and Implementation of US GEOTRACES GP17 Section: Amundsen Sea Sector of the Antarctic Continental Margin (GP17-ANT)
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批准号:2023214
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项目类别:Standard Grant
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财政年份:2021
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负责人:Robert Sherrell
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NSFGEO-NERC: Collaborative Research: Accelerating Thwaites Ecosystem Impacts for the Southern Ocean (ARTEMIS)
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批准号:1941304
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项目类别:Continuing Grant
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资助金额:$49.61万
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财政年份:2021
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负责人:Robert Sherrell
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依托单位:
MRI: Acquisition of a Laser Ablation High Resolution Inductively Coupled Plasma Mass Spectrometer for Investigations of Ocean and Climate
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批准号:1919716
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项目类别:Standard Grant
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资助金额:$68.54万
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财政年份:2019
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负责人:Robert Sherrell
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依托单位:
Collaborative research: Calibration of deep-sea coral paleoproxies for nutrients, carbonate ion, and temperature
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批准号:1841882
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项目类别:Standard Grant
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资助金额:$24.07万
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财政年份:2019
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负责人:Robert Sherrell
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依托单位:
Collaborative Research: Investigating the Role of Mesoscale Processes and Ice Dynamics in Carbon and Iron Fluxes in a Changing Amundsen Sea (INSPIRE)
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批准号:1443315
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项目类别:Standard Grant
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资助金额:$5.0万
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财政年份:2015
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负责人:Robert Sherrell
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依托单位:
Collaborative Research: Suspended particle geochemistry along the US GEOTRACES Eastern Pacific Zonal Transect, from high productivity ocean margin to deep sea hydrothermal plume
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批准号:1234827
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项目类别:Continuing Grant
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资助金额:$38.01万
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财政年份:2013
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负责人:Robert Sherrell
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依托单位:
Natural Fe Fertilization and Bioactive Metal Dynamics on the Western Antarctic Peninsula Shelf
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批准号:1142250
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项目类别:Standard Grant
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资助金额:$50.41万
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负责人:Robert Sherrell
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P2C2: Rapid Climate Variations--A Speleothem-based High-resolution Record of Rainfall in the Equatorial South Pacific over the Last 83,000 Years
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批准号:1103478
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项目类别:Standard Grant
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资助金额:$52.82万
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财政年份:2011
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负责人:Robert Sherrell
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依托单位:
Development and application of seawater nutrient proxies in deep-sea corals
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批准号:0962260
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项目类别:Standard Grant
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资助金额:$32.72万
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财政年份:2010
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负责人:Robert Sherrell
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依托单位:
Collaborative research aboard Icebreaker Oden: ASPIRE (Amundsen Sea Polynya International Research Expedition)
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批准号:0838995
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项目类别:Standard Grant
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资助金额:$86.6万
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负责人:Robert Sherrell
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依托单位:
A Coral Skeleton P/Ca Proxy for Surface Ocean Phosphate: Testing and calibration
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批准号:0752544
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项目类别:Standard Grant
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资助金额:$43.09万
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财政年份:2008
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负责人:Robert Sherrell
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SGER: Science-of-Opportunity Aboard Icebreaker Oden: Bioactive trace metals in the Amundsen and Ross Seas
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批准号:0741403
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项目类别:Standard Grant
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资助金额:$8.08万
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财政年份:2007
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负责人:Robert Sherrell
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依托单位:
Collaborative Research: US GEOTRACES Sampling Systems and Intercalibration
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批准号:0648353
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项目类别:Standard Grant
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资助金额:$40.58万
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财政年份:2007
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负责人:Robert Sherrell
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依托单位:
MRI: Acquisition of a Laser Ablation High Resolution Inductively Coupled Plasma Mass Spectrometer
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批准号:0420839
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项目类别:Standard Grant
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资助金额:$45.25万
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财政年份:2004
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负责人:Robert Sherrell
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依托单位:
Collaborative Research: The Nitrifying of Lake Superior and Its Intersections with the P and Fe Cycles
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批准号:0352208
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项目类别:Standard Grant
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资助金额:$19.42万
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财政年份:2004
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负责人:Robert Sherrell
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依托单位:
Rare Earth Elements and Nd Isotopes in Hydrothermal Metalliferous Sediments: Pleistocene and Cenozoic Paleoceanography
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批准号:0137350
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项目类别:Standard Grant
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资助金额:$18.32万
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财政年份:2002
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负责人:Robert Sherrell
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依托单位:
Fractionation of Cd and P by Marine Phytoplankton
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批准号:0137592
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项目类别:Standard Grant
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资助金额:$29.89万
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财政年份:2002
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负责人:Robert Sherrell
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依托单位:
Trace Metal Limitaion of Phytoplankton Productivity: Combined Immunological, Geochemical and Growth Assay Approaches in Lake Superior
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批准号:9902660
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项目类别:Continuing Grant
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资助金额:$9.35万
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财政年份:1999
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负责人:Robert Sherrell
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依托单位:
Cadmium Uptake by Phytoplankton in Productive Ocean Margins
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批准号:9720692
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项目类别:Continuing Grant
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资助金额:$19.92万
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财政年份:1998
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负责人:Robert Sherrell
-
依托单位:
国内基金
海外基金
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