Detrital-zircon geochronology of the eastern Magallanes foreland basin: Implications for Eocene kinematics of the northern Scotia Arc and Drake Passage
Detrital-zircon geochronology of the eastern Magallanes foreland basin: Implications for Eocene kinematics of the northern Scotia Arc and Drake Passage
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DOI：
10.1016/j.epsl.2009.05.014
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发表时间：
2009-07-15
影响因子：
5.3
通讯作者：
Gehrels, George E.
中科院分区：
文献类型：
--
作者：
Barbeau, David L., Jr.;Olivero, Eduardo B.;Gehrels, George E.
从阿根廷最南端的东部马加兰前陆盆地的白垩纪至渐新世地层采集的11块砂岩的碎屑锆石U/Pb年代学记录表明，在中始新世末期发生了一次剧烈的物源转换，其年龄约为39 Ma。从晚白垩世到中始新世大部分时间，到达前陆盆地的碎屑锆石主要来自
U/Pb detrital-zircon geochronology of eleven sandstones collected from Cretaceous through Oligocene strata of the eastern Magallanes foreland basin of southernmost Argentina records a dramatic provenance shift near the end of the middle Eocene at ca. 39 Ma. From the Late Cretaceous through most of the middle Eocene, detrital zircons reaching the foreland basin were dominantly contributed from