Geochronologic and Related Studies, Southern and Central NewEngland
Geochronologic and Related Studies, Southern and Central NewEngland
批准号:
8917230
负责人:
L. Peter Gromet
金额:
$12.5万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1990
资助国家:
美国
项目状态:
已结题
起止时间:
1990-01-01 至 1992-06-30
中文摘要
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英文摘要
Recent determinations of diffusion rates of cations in several common minerals allow a mineral dating method to resolve between protracted slow cooling and discrete later tectonic events. This project will study Paleozoic metamorphism and deformation in the southern and central New England Appalachians. It will obtain Rb-Sr, Sm-Nd and U-Pb isotopic data on co-existing minerals in high grade metaigneous gneisses and amphibolites in order to determine the time of last recrystal- lization or initiation of cooling following high temperature metamorphism. The results of this study will allow features of middle Paleozoic and late Paleozoic shear zones to be dated, yielding a clearer understanding of major events in the northern Appalachians.
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Collaborative Research: Using molecular fossils to investigate environmental perturbation during the end-Triassic Mass Extinction: Global vs. local signals
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批准号:1147402
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项目类别:Standard Grant
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资助金额:$12.73万
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财政年份:2012
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负责人:L. Peter Gromet
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依托单位:
Collaborative Research: Evaluation of a Ridge Subduction Model for the Early Paleozoic Evolution of the Pampean Orogen, Argentina
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批准号:0001150
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项目类别:Continuing Grant
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资助金额:$13.38万
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财政年份:2000
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负责人:L. Peter Gromet
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依托单位:
COLLABORATIVE RESEARCH: Timing of Orogenic Events in the Sierra Pampeanas of West-Central Argentina
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批准号:9628285
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项目类别:Continuing Grant
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资助金额:$14.05万
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财政年份:1996
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负责人:L. Peter Gromet
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依托单位:
Age Constraints on Tectonism and Metamorphism in the Scandinavian Caledonides
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批准号:9418264
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项目类别:Continuing Grant
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资助金额:$20.37万
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财政年份:1995
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负责人:L. Peter Gromet
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依托单位:
Geochronological Evaluation of Circa 600 Ma Events in Northwest Svalbard, Arctic Caledonides
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批准号:9416211
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项目类别:Standard Grant
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资助金额:$2.25万
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财政年份:1994
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负责人:L. Peter Gromet
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依托单位:
Geochronologic and Related Studies, Southern New England and Scandinavia
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批准号:9205324
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项目类别:Standard Grant
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资助金额:$11.73万
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财政年份:1992
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负责人:L. Peter Gromet
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依托单位:
Single-Grain Zircon Pb/Pb Ages by Direct Evaporation: A Pilot Study of Detrital Zircons in the New England Appalachians
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批准号:9018850
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项目类别:Standard Grant
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资助金额:$4.65万
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财政年份:1991
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负责人:L. Peter Gromet
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依托单位:
Geochronologic and Related Studies, Southern and Central New England
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批准号:8708557
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项目类别:Continuing Grant
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资助金额:$11.1万
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财政年份:1987
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负责人:L. Peter Gromet
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依托单位:
Acquisition of a Solid-Source Mass Spectrometer
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批准号:8709234
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项目类别:Standard Grant
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资助金额:$15.0万
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财政年份:1987
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负责人:L. Peter Gromet
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依托单位:
Petrological and Geochemical Studies on the St. Urbain Anorthosite, Quebec, Canada
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批准号:8206659
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项目类别:Continuing Grant
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资助金额:$7.6万
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财政年份:1985
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负责人:L. Peter Gromet
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依托单位:
Integrated Studies of Major Tectonic Contacts Within the Composite Avalon Zone, Southeastern New England
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批准号:8407664
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项目类别:Standard Grant
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资助金额:$8.68万
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财政年份:1984
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负责人:L. Peter Gromet
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依托单位:
Petrological and Geochemical Studies on the St. Urbain Anorthosite, Quebec, Canada
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批准号:8009324
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项目类别:Standard Grant
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资助金额:$3.57万
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财政年份:1980
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负责人:L. Peter Gromet
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依托单位:
Study of Rare Earth Distribution Among Minerals in Selected Igneous Suites and Construction of Petrogenetic Models
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批准号:7911184
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项目类别:Standard Grant
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资助金额:$5.09万
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财政年份:1979
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负责人:L. Peter Gromet
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依托单位:
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