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现今南美中部发生平板俯冲的地区就属于典型的海山改造的造山作用,但是其持续时间只有几个百万年。那么,地球历史上的这种造山作用如何识别,能够引起哪些地质现象,能够持续多久?
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2021-04-25 |
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在年际尺度上,我国西南和东南地区的植被火灾存在反相变化的特征,该特征主要受到厄尔尼诺的调控,厄尔尼诺正相位期间西南植被火灾多而东南的区域偏少
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2021-04-25 |
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中科院地质与地球物理研究所蔡书慧副研究员联合美国加州大学圣迭戈分校Lisa Tauxe教授、美国芝加哥伊利诺大学考古学家Mitch Hendrickson副教授等,对位于东南亚柬埔寨北部的一处古代冶铁遗址(Tonle Bak)开展了考古磁学研究,获得了该地区首批地磁场全矢量数据。
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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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