Rapid Emplacement of the Lower Deccan Traps and its Implications for Late Cretaceous Climate Change

下德干圈闭的快速侵位及其对晚白垩世气候变化的影响

• 批准号: 2883538
• 金额: --
• 依托单位: The Open University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2883538
• 关键词: Rapid; Emplacement; Lower; Deccan; Traps

The Deccan Large Igneous Province (LIP) is associated with the Crestaceous-Paleogene Boundary(KPB) mass extinction event at 66Ma. However, this is not the only environmental crisis it is linked to Petersen et al. 2016 show a regional warming and extinction event in Antarctica and Hull et al 2020 constrain an implied major volcanic outgassing event. Both are 250,000 years before the KPB. Such events suggest a sustained period of large volume of volcanic activity. The Thakurvadi Formation in the Kalsubai Sub-group, Deccan, is a prime candidate for this.

德干大型火成岩省 (LIP) 与 66Ma 的白垩纪-古近纪边界 (KPB) 大规模灭绝事件有关。然而，这并不是与彼得森等人相关的唯一环境危机。 2016 年显示南极洲发生了区域性变暖和灭绝事件，而 Hull 等人则在 2020 年限制了隐含的重大火山放气事件。两者都比 KPB 早 25 万年。此类事件表明火山活动持续一段时间。德干 Kalsubai 次级群的 Thakurvadi 地层是这一情况的主要候选地层。