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Interrelation of Granitic Magmatism, Metamorphism and Deformation, within an Extensional Tectonic Setting, Kiqluaik Mountains, Seward Peninsula Alaska

Interrelation of Granitic Magmatism, Metamorphism and Deformation, within an Extensional Tectonic Setting, Kiqluaik Mountains, Seward Peninsula Alaska
阿拉斯加苏厄德半岛基克卢艾克山脉伸展构造环境中花岗岩岩浆作用、变质作用和变形的相互关系
批准号：
9117419
负责人：
James Wright
金额：
$0.0万
依托单位：
William Marsh Rice University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1992
资助国家：
美国
项目状态：
已结题
起止时间：
1992-01-15 至 1994-12-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9117419&HistoricalAwards=false
关键词：
InterrelationGraniticMagmatismMetamorphismDeformation

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中文摘要
翻译
先前在阿拉斯加苏厄德半岛的Kigluaik山脉进行的研究表明，白垩纪花岗岩可能是在一次大规模的伸展活动中形成的，而不是像之前认为的那样是在挤压和地壳增厚过程中形成的。这个项目包括年龄测年、化学和同位素岩石成因研究，以检验两种不同的假设。结果将通过提供年龄控制来协助该地区的其他研究，并将深入了解在几种构造环境中导致花岗岩熔体产生的过程。
英文摘要
Prior studies in the Kigluaik Mountains of the Seward Peninsula, Alaska have raised the possibility that Cretaceous granites were emplaced in a large-magnitude extension event, rather than during a compressional, crustal thickening event as previously thought. This project involves age dating and chemical and isotopic petrogenetic studies to test between the two different hypotheses. Results will assist other studies in the area by providing age control, and will give insight into processes leading to the production of granitic melts in several tectonic environments.
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