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現今南美中部發生平板俯沖的地區就屬于典型的海山改造的造山作用,但是其持續時間只有幾個百萬年。那么,地球歷史上的這種造山作用如何識別,能夠引起哪些地質現象,能夠持續多久?
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2021-04-25 |
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在年際尺度上,我國西南和東南地區的植被火災存在反相變化的特征,該特征主要受到厄爾尼諾的調控,厄爾尼諾正相位期間西南植被火災多而東南的區域偏少
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2021-04-25 |
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中科院地質與地球物理研究所蔡書慧副研究員聯合美國加州大學圣迭戈分校Lisa Tauxe教授、美國芝加哥伊利諾大學考古學家Mitch Hendrickson副教授等,對位于東南亞柬埔寨北部的一處古代冶鐵遺址(Tonle Bak)開展了考古磁學研究,獲得了該地區首批地磁場全矢量數據。
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2021-03-26 |
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Modern-style plate tectonics, often characterised by subduction, is a fundamental dynamic process for planet Earth. Subduction related eclogites are widely used to indicate initiation of plate tectonics or whether different tectonic regimes domina...
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2021-01-26 |
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Supercontinent Pangea was preceded by the formation of Gondwana, a “megacontinent” about half the size of Pangea. There is much debate, however, over what role the assembly of the precursor megacontinent played in the Pangean supercontinent cycl...
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2021-01-25 |
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