• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Stratigraphy >Conodont-based correlation of marine units inlower Conemaugh Group(Late Pennsylvanian) in Northern Appalachian Basin
【24h】

Conodont-based correlation of marine units inlower Conemaugh Group(Late Pennsylvanian) in Northern Appalachian Basin

机译：阿巴拉契亚盆地北部低Conemaugh组（宾夕法尼亚州晚期）海洋单元的基于牙形体的相关性

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

Recent development of more global correlations of late Middle through mid-Late Pennsylvanian marine cyclothems in the Midcontinent Basin ofNorth America with similar cyclic successions in the Moscow and Donets basins of eastern Europe, make it appro-priate to establish a more accurate correlation of the Midcontinent cyclothems with those in the Illinois and Appalachian basins, where they are separated by fossiliferous terrestrial strata. Marine units in the lower Conemaugh Group of the Northern Appalachian Basin contain conodont faunas that are similar to those described from the Midcontinent succession. Updated brief descriptions and illustrations of these Appalachian faunas allow direct correlation of these Appalachian marine units with the major marine cyclothems of the Midcontinent and Illinois basins. These faunas also clarify the correlation of named units among the states of the Northern Appalachian Basin, and thus correct a long-standing miscorrelation of the Pine Creek Limestone of Pennsylvania with the Cambridge Limestone of Ohio. The Pine Creek Limestone contains a distinctive conodont fauna that underpins its correlation with the Upper Brush Creek Limestone of Ohio, while the Cambridge Limestone contains a younger fauna that allows its correlation with the Nadine Limestone of Pennsylvania. The Brush Creek Limestone of Pennsylvania contains a distinctive conodont fauna that indicates its correlation with only the Lower Brush Creek Limestone of Ohio. Clarification of the correlations of these marine units from the Appalachian Basin to the Midcontinent Basin will better constrain the correlations of terrestrial fossil localities in the Appalachian and Illinois basins with the global marine time scale.
机译：最近在北美中部盆地中后期至中晚期宾夕法尼亚州海洋气旋的全球相关性的最新发展，以及在东欧的莫斯科和顿涅茨盆地类似的循环演替，使得建立中大陆的更准确的相关性是适当的与伊利诺伊州和阿巴拉契亚盆地的回旋线，被化石地层隔开。北阿巴拉契亚盆地Conemaugh组下部的海相单元包含牙形动物群，与中陆演替中描述的相类似。更新的这些阿巴拉契亚动物区系的简短描述和插图使这些阿巴拉契亚海洋单元与中大陆和伊利诺伊盆地的主要海洋气旋直接相关。这些动物区系也阐明了北阿巴拉契亚盆地各州之间命名单位的相关性，从而纠正了宾夕法尼亚州的派恩克里克石灰石与俄亥俄州的剑桥石灰石之间长期的不相关性。松溪石灰岩包含一种独特的牙形动物区系，从而使其与俄亥俄州的上刷溪石灰岩具有相关性，而剑桥石灰岩包含一种较年轻的动物群，使其与宾夕法尼亚州的纳丁石灰岩具有相关性。宾夕法尼亚州的Brush Creek石灰石包含独特的牙形动物，表明其仅与俄亥俄州的Lower Brush Creek石灰石相关。澄清这些从阿巴拉契亚盆地到中大陆大陆的海洋单元的相关性，将更好地限制阿巴拉契亚和伊利诺伊斯盆地的陆地化石位置与全球海洋时间尺度的相关性。

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