揭示与阿根廷巴塔哥尼亚中部索蒙-库拉大火成岩带有关的主要走向滑动断层系统

IF 1.7 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Journal of South American Earth Sciences Pub Date : 2024-09-19 DOI:10.1016/j.jsames.2024.105164

Santiago N. González , Gerson A. Greco , Darío L. Orts

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引用次数: 0

摘要

这项研究提供了新的证据，证明阿根廷巴塔哥尼亚中部的索蒙库拉大火成岩带的形成与一个主要的区域性走向滑动断层系统有关。我们综合运用遥感技术和实地考察，进一步揭示了该岩浆岩带的复杂构造，并揭示了其地质演化过程。我们的研究结果表明，索蒙库拉大火成岩省的岩浆产物与左侧走向滑动断层系统之间存在着令人信服的相关性，这与在其他岩浆大火成岩省观察到的类似关系相似。此外，本研究中描述的走向滑动构造很可能是断层系统演变的顶点，可能源于一个长期存在的基底断层，并延伸到索蒙库拉玄武岩高原的范围之外。

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Unveiling a major strike-slip fault system associated with the Somún Curá Large Igneous Province in central Patagonia, Argentina

This study presents new evidence of a major, regional strike-slip fault system linked to the emplacement of the Somún Curá Large Igneous Province in central Patagonia, Argentina. Employing a combination of remote sensing techniques and fieldwork, we provide additional insights into the structural complexities underlying this magmatic province, shedding light on its geological evolution. Our findings indicate a compelling correlation between the magmatic products of the Somún Curá Large Igneous Province and the left-lateral strike-slip fault system, resembling similar relationships observed in other magmatic large igneous provinces. Moreover, the strike-slip tectonics delineated in this study likely represent the culmination of the fault system's evolution, possibly originating from a longstanding basement fault and extending beyond the limits of the Somún Curá basaltic plateau.

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来源期刊

Journal of South American Earth Sciences 地学-地球科学综合

CiteScore

3.70

自引率

22.20%

发文量

364

审稿时长

6-12 weeks

期刊介绍： Papers must have a regional appeal and should present work of more than local significance. Research papers dealing with the regional geology of South American cratons and mobile belts, within the following research fields: -Economic geology, metallogenesis and hydrocarbon genesis and reservoirs. -Geophysics, geochemistry, volcanology, igneous and metamorphic petrology. -Tectonics, neo- and seismotectonics and geodynamic modeling. -Geomorphology, geological hazards, environmental geology, climate change in America and Antarctica, and soil research. -Stratigraphy, sedimentology, structure and basin evolution. -Paleontology, paleoecology, paleoclimatology and Quaternary geology. New developments in already established regional projects and new initiatives dealing with the geology of the continent will be summarized and presented on a regular basis. Short notes, discussions, book reviews and conference and workshop reports will also be included when relevant.