...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Facies >The occurrence and role of microencruster frameworks in Late Jurassic to Early Cretaceous platform margin deposits of the Northern Calcareous Alps (Austria)
【24h】

The occurrence and role of microencruster frameworks in Late Jurassic to Early Cretaceous platform margin deposits of the Northern Calcareous Alps (Austria)

机译：北部钙质阿尔卑斯山（侏罗纪至白垩纪早期台缘边缘沉积物）中微壳架的形成及其作用

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

Late Jurassic reefs are generally assumed to lack “cement crusts”. In the present paper, microencruster frameworks with variable amounts of cement are described from Late Jurassic to Earliest Cretaceous shallow-water carbonates of the Northern Calcareous Alps of Austria. The boundstones are characterized by a specialized and highly diverse community of microencrusters, partly occupying cryptic habitats. Volumetrically of minor importance compared to similar Permo-Triassic examples, Late Jurassic to Earliest Cretaceous microframeworks here reported compare well with cement reefs or cement-supported counterparts of other time intervals. The assumed depositional setting is that of a fore-reef slope environment. Generally, this peculiar microfacies can be integrated in current concepts of Late Jurassic reef classifications. Although more details are still needed for comparison, Late Jurassic microencruster-cement frameworks seem to be typical, but not restricted to the margins of Neotethyan isolated platforms.
机译：一般认为侏罗纪晚期的珊瑚礁缺少“水泥壳”。在本文中，从奥地利北部钙质阿尔卑斯山的侏罗纪晚期到最早的白垩纪浅水碳酸盐描述了水泥含量可变的微壳架。硬石的特征是一个专门的，高度多样化的微壳群落，部分占据了隐秘的栖息地。与类似的Permo-Triassic实例相比，在体积上重要性不大，这里报道的侏罗纪至最早的白垩纪微框架与其他时间间隔的水泥礁或由水泥支撑的对应物比较好。假定的沉积环境是前礁斜坡环境的沉积环境。通常，可以将这种特殊的微相整合到当前的侏罗纪晚期礁分类中。尽管仍然需要更多细节进行比较，但侏罗纪晚期微壳水泥框架似乎很典型，但并不局限于新特提斯孤立平台的边缘。

著录项

相似文献

  • 外文文献
  • 中文文献
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