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中文摘要：
综述了近年来对岩石圈拆沉作用化学和物理过程的研究及其对华北克拉通破坏的效应,强调了榴辉岩熔体-橄榄岩反应形成的辉石岩源区及其导致的地幔化学不均一性是拆沉作用的地幔直接响应.由此形成的来自辉石岩源区的玄武岩具有独特的矿物学和地球化学标志,可很好地解释华北克拉通中生代玄武岩.熔体-橄榄岩反应可能是导致克拉通岩石圈地幔富化、密度升高、弱化、最终失稳的重要原因.其中熔体的性质是鉴别不同克拉通破坏机制的关键.
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