Collaborative Research: Records of Permian Environments and Climate from Mid-Continent Redbeds and Evaporites.

合作研究：中大陆红床和蒸发岩的二叠纪环境和气候记录。

• 批准号: 1317138
• 负责人: Kathleen Benison
• 金额: $ 7.22万
• 依托单位: West Virginia University Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1317138&HistoricalAwards=false
• 关键词: Collaborative; Research; Records; Permian; Environments

COLLABORATIVE RESEARCH: Records of Permian environments and climate from mid-continent redbeds and evaporitesMichael Soreghan and Gerilyn Soreghan, University of Oklahoma, EAR-1053018Kathy Benison, Central Michigan University, EAR-1053025ABSTRACTThe Permian Period (~300-250 million years ago) is a time of great change, including an end to the long-term mountain building that formed the supercontinent Pangaea, the end of a major continental glaciation, and the prelude to the largest mass extinction in Earth history. Continental sedimentary rocks, including red-bed siliciclastics and evaporites, were deposited during the Permian throughout the midcontinental United States and record major climate change. This research will integrate sedimentologic and geochemical data from outcrops and cores to interpret depositional environments and paleoclimate from these mid-upper Permian redbeds and evaporites. The goal of this research is to determine whether: 1) the mid-continent was dominated by extensive lakes, including freshwater and saline perennial as well as saline and acid-saline ephemeral types; (2) regional climatic changes are faithfully recorded in these strata; and (3) ?redbeds? record a causative link between iron-rich eolian dust and extremely acid saline lakes. Understanding these abrupt climatic and environmental changes in the past improves our ability to test and refine climate models.

合作研究：二叠纪环境和气候的记录和蒸发的蒸发和蒸发米切尔·索雷根（Evaporitesmichael Soreghan）和杰里琳·索雷根（Gerilyn Soreghan），俄克拉荷马大学，EAR-1053018 Kathy Benison，中央密歇根大学，EAR-1053025ABSTRACT THE PEMSTERT THE PEMSTING（〜3亿山）是一件大型山脉，包括一定的时间，包括一整天的山脉，包括整个山脉。 Pangea，主要的大陆冰川末端，也是地球历史上最大巨大灭绝的前奏。 在整个美国中部的二叠纪期间，在二叠纪期间沉积了包括红床的硅单和蒸发岩在内的大陆沉积岩，并记录了重大的气候变化。这项研究将整合来自露头和核心的沉积学和地球化学数据，以解释这些中二叠纪红床和蒸发物的沉积环境和古气候。 这项研究的目的是确定：1​​）中大陆是否以广泛的湖泊为主，包括淡水和盐水多年生植物以及盐水和酸盐北方短暂的类型； （2）在这些阶层中忠实地记录了区域气候变化； （3）？记录铁富的Eolian粉尘和极酸盐湖之间的因果关系。了解这些突然的气候和过去的环境变化可以提高我们测试和完善气候模型的能力。