• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Gondwana research: international geoscience journal >Zircons and clay from morainal Permian siltstone at Mt Rymill (73 degrees S, 66 degrees E), Prince Charles Mountains, Antarctica, reflect the ancestral Gamburtsev Subglacial Mountains-Vostok Subglacial Highlands complex
【24h】

Zircons and clay from morainal Permian siltstone at Mt Rymill (73 degrees S, 66 degrees E), Prince Charles Mountains, Antarctica, reflect the ancestral Gamburtsev Subglacial Mountains-Vostok Subglacial Highlands complex

机译：南极查尔斯王子山的瑞米尔山（73度，东经66度）上的莫里斯二叠纪粉砂岩中的锆石和粘土反映了祖先的甘布次采夫次冰川山脉-沃斯托克次冰川高地综合体

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Clasts of red siltstone with Glossopleris from moraine around Mt Rymill in the southern Prince Charles Mountains, East Antarctica, can be traced upslope in the Lambert Graben system to the nearby Gamburtsev Subglacial Mountains (GSM). The clasts contain zircons with SHRIMP U-Pb ages of 620-460 Ma and 1300-970 Ma from host rocks of intermediate to mafic rocks, and a clay fraction with a T-DM Nd model age of 2.72 Ga and eNd of - 18.3, derived from upper continental crust. East of the GSM, at Lake Vostok, clasts of siltstone in accreted ice can be traced to the Vostok Subglacial Highlands (VSH). The clasts contain zircons and monazites with SHRIMP U-Pb ages [Leitchenkov, G.L., Belyatsky, B.V, Rodionov, N.V., Sergeev, S.A., 2007. Insight into the geology of the East Antarctic hinterland: a study of mineral inclusions from ice cores of the Lake Vostok borehole. In: Cooper, A.K., Raymond, C.R. (Eds.), Online Proceedings of the 10th ISAES, USGS Open-file Report 2007-1047, Short research Paper 0 14, 4 pages.] broadly similar to those from Mt Rymill, and a T-DM Nd model age of 1.88 Ga and epsilon Nd of - 15 [Delmonte, B., Petit, JR., Basile-Doelsch, I., Lipenkov, V., Maggi, V., 2004. First characterization and dating of East Antarctic bedrock inclusions from subglacial Lake Vostok accreted ice. Environmental Chemistry 1, 90-94.]. Other Mesozoic and Paleozoic sediments deposited in a radial pattern about central Antarctica contain detrital zircons dominated by populations aged 700-500 Ma and 1300-1000 Ma, which we interpret as reflecting a GSM-VSH provenance dominated by rocks generated during the Pan-Gondwanaland and Grenville events of supercontinental assembly. (C) 2007 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
机译：在南极东部查尔斯王子山南部雷米尔山附近的冰ora中，有红闪闪的粉砂岩与冰ora的碎裂可以追溯到兰伯特·格拉本系统中的上坡到附近的甘布兹采夫冰川下山脉（GSM）。这些碎屑中含有从中级到镁铁质岩层的SHRIMP U-Pb年龄为620-460 Ma和1300-970 Ma的锆石，以及T-DM Nd模型年龄为2.72 Ga和eNd为-18.3的粘土组分，来自上大陆壳。在GSM的东部，在沃斯托克湖，堆积的冰中的粉砂岩碎屑可以追溯到沃斯托克冰川下高地（VSH）。这些碎屑包含具有SHRIMP U-Pb年龄的锆石和独居石[Leitchenkov，GL，Belyatsky，BV，Rodionov，NV，Sergeev，SA，2007。沃斯托克湖钻孔。在：库珀（AK），雷蒙德（CR）（编辑），第10届ISAES的在线会议记录，USGS开放文件报告2007-1047，简短研究论文0 14，4页。]与My Rymill的论文大致相似，并且T-DM Nd模型年龄为1.88 Ga，εNd为-15 [Delmonte，B.，Petit，JR。，Basile-Doelsch，I.，Lipenkov，V.，Maggi，V.，2004。冰川下沃斯托克湖的南极东部基岩包裹体积冰。环境化学1，90-94。]。在南极中部附近以放射状沉积的其他中生代和古生代沉积物中含有碎屑锆石，其年龄分别为700-500 Ma和1300-1000 Ma，我们将其解释为反映了由Pan-Gondwanaland和超大陆大会的格伦维尔事件。 （C）2007国际冈瓦那研究协会。由Elsevier B.V.发布。保留所有权利。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号