...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Asian earth sciences >Evidence of Mid-Cretaceous carbon cycle perturbations and OAE2 recorded in Cenomanian to middle Campanian carbonates of the Zagros fold-thrust belt basin, Iran
【24h】

Evidence of Mid-Cretaceous carbon cycle perturbations and OAE2 recorded in Cenomanian to middle Campanian carbonates of the Zagros fold-thrust belt basin, Iran

机译：中白垩纪碳循环扰动和OAE2记录在Cenomanian中的中间Campanianation，伊朗Zagros折叠带盆

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

The Cenomanian to middle Campanian succession of the Zagros fold-thrust belt basin in Iran was investigated to evaluate the sedimentologic and geochemical response to Oceanic Anoxic Event 2 (OAE2), the Cenomanian-Turonian Boundary Event (CTBE) and Mid Cenomanian Event I (MCEI). The succession was examined at the Chenareh anticline locality, which is situated between the two main tectonic zones of the Zagros foldthrust belt basin. Petrographic analysis led us to define 10 carbonate microfacies and a shale petrofacies that were deposited in four facies belts: tidal flat, lagoon, shoal, and open marine within a larger platform ramp environment. Carbon isotope and trace element data indicate that the Coniacian to middle Campanian Ilam Formation formed within anoxic to dysoxic settings, with lower amounts of water/rock interaction compared to the underlying Sarvak Formation. Carbon isotope chemostratigraphy allows the CTBE and MCEI evidence to be distinguished within the Zagros Basin, however, values measured by this study are depleted compared to other published chemostratigraphic records of the event. The results, therefore, demonstrate that diagenesis or a local CTB hiatus affected the record of these global events in the study area at the Zagros Basin.
机译：Cenomanian对伊朗Zagros折叠带盆盆地的中间坎帕尼亚的继承，评估了对海洋缺氧事件2（OAE2），Cenomanian-Turonian边界事件（CTBE）和MIDAMANIAN事件I（MCEI）的沉积学和地球化学反应）。在Chenareh Intellinitlinith局部检查了这一演档，该位置位于ZAGROS折叠带盆盆地的两个主要构造区域之间。岩体分析导致我们定义了10个碳酸盐的微腐蚀和沉积在四个相带中的页岩衣鱼：潮汐平，泻湖，浅滩和开放式船舶在更大的平台斜坡环境中。碳同位素和微量元素数据表明，与底层的Sarvak形成相比，Coniacian对氧气氧化下形成的中间南美洲硅酰胺形成，较低的水/岩相互作用。碳同位素化学高位证据允许CTBE和MCEI证据在ZAGROS盆地内区分开，然而，通过该研究测量的值与事件的其他公开的化学抽头记录相比耗尽。因此，结果表明，成岩作用或本地CTB Hiatus影响了Zagros盆地的研究区域中这些全球事件的记录。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
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