一次一个 LIP 推动全球变革

IF 2.2 2区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Elements Pub Date : 2023-10-01 DOI:10.2138/gselements.19.5.269

Frances Deegan, Sara Callegaro, Joshua H.F.L. Davies, Henrik Svensen

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引用次数: 0

摘要

地球历史上曾发生过一些非同寻常的岩浆事件，这些事件产生了大火成岩带（LIPs）。许多大火成岩带引发了全球变化，包括千年尺度的变暖、陆地和海洋大灭绝、海洋缺氧事件，甚至冰川。过去 20 年的研究表明，浅层地壳脱气是造成 LIPs 环境影响的一个重要因素。沉积盆地中的接触变质作用可产生巨大的气体量，其运作是岩浆量和 LIP 垂管系统结构的函数。关于LIPs在引发快速和持久变化方面的作用，仍有许多未决问题，这些问题的答案需要地球科学各学科的通力合作。在本期中，我们将介绍五个关键研究课题的现状，并讨论更好地理解这些大规模现象的可能途径。

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Driving Global Change One LIP at a Time

Earth’s history has been punctuated by extraordinary magmatic events that produced large igneous provinces (LIPs). Many LIPs induced global changes, including millennial-scale warming, terrestrial and oceanic mass extinctions, oceanic anoxic events, and even glaciations. Research over the past 20 years has shown that shallow crustal degassing is an important factor contributing to the environmental impact of LIPs. Contact metamorphism in sedimentary basins can generate huge gas volumes, and operates as a function of magma volume and the architecture of LIP plumbing systems. Numerous open questions remain concerning the role of LIPs in triggering rapid and lasting changes, whose answers require collaboration across geoscientific disciplines. In this issue, we present the status of five key research themes and discuss potential ways forward to better understanding these large-scale phenomena.

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来源期刊

Elements 地学-地球化学与地球物理

CiteScore

7.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Elements is an international magazine of mineralogy, petrology, and geochemistry. Published bimonthly, every issue explores a theme of broad and current interest. Elements publishes invited peer-reviewed articles for each thematic collection of papers. Topics of interest can be proposed to the editors who will review every proposal submitted. Elements also presents regular features including a opinion articles, calendar of events, short course announcements, awards, conference reports, policy news, as well as news of the 18 participating societies.