北大西洋南部岩浆贫乏大陆-海洋过渡带:广角地震综合新前沿

IF 3.2 2区 地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS Solid Earth Pub Date : 2024-06-21 DOI:10.5194/se-15-683-2024
J. Kim Welford
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引用次数: 0

摘要

摘要。岩浆贫乏的断裂边缘及其相应的蛇纹岩化地幔潜在区域是一类独特的构造边界,在推动能源转型(如制氢和碳封存)以及寻找关键矿物方面具有巨大潜力。在本研究中,综合介绍了地震折射和广角反射(RWAR)剖面测量的结果以及北大西洋南部大陆-海洋过渡带的速度模型。对模型进行评估和比较,以了解整个区域和共轭边缘对之间的基底类型和上地幔特征,并校准其大陆-海洋过渡带(COTZ)的定义方式。最终,这项工作强调了大陆-海洋过渡带的多变性,即使在岩浆贫乏的裂谷边缘末段情况下也是如此,并指出了未来研究的途径,以填补知识空白,加速能源过渡。
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Magma-poor continent–ocean transition zones of the southern North Atlantic: a wide-angle seismic synthesis of a new frontier
Abstract. Magma-poor rifted margins, and their corresponding potential zones of exhumed serpentinized mantle, represent a unique class of tectonic boundaries with enormous promise for advancing the energy transition, such as with hydrogen production and carbon sequestration and in the search for critical minerals. In this study, a synthesis of the results from seismic refraction and wide-angle reflection (RWAR) profiling and resulting velocity models across the continent–ocean transitions of the southern North Atlantic Ocean is presented. The models are assessed and compared to understand characteristic basement types and upper mantle behaviour across the region and between conjugate margin pairs and to calibrate how their continent–ocean transition zones (COTZs) are defined. Ultimately, this work highlights the variable nature of continent–ocean transition zones, even within the magma-poor rifted margin end-member case, and points to avenues for future research to fill the knowledge gaps that will accelerate the energy transition.
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来源期刊
Solid Earth
Solid Earth GEOCHEMISTRY & GEOPHYSICS-
CiteScore
6.90
自引率
8.80%
发文量
78
审稿时长
4.5 months
期刊介绍: Solid Earth (SE) is a not-for-profit journal that publishes multidisciplinary research on the composition, structure, dynamics of the Earth from the surface to the deep interior at all spatial and temporal scales. The journal invites contributions encompassing observational, experimental, and theoretical investigations in the form of short communications, research articles, method articles, review articles, and discussion and commentaries on all aspects of the solid Earth (for details see manuscript types). Being interdisciplinary in scope, SE covers the following disciplines: geochemistry, mineralogy, petrology, volcanology; geodesy and gravity; geodynamics: numerical and analogue modeling of geoprocesses; geoelectrics and electromagnetics; geomagnetism; geomorphology, morphotectonics, and paleoseismology; rock physics; seismics and seismology; critical zone science (Earth''s permeable near-surface layer); stratigraphy, sedimentology, and palaeontology; rock deformation, structural geology, and tectonics.
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