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南极泰勒谷及罗斯岛地区火山岩的微量元素地球化学研究表明,它们可以分为两大类,博尼湖南岸、克雷克特山和鸟角的碧玄岩或碱玄岩是地幔平衡部分熔融作用的结果;罗德角和伊万思角的安粗岩是岩浆分离结晶作用的结果,其母岩浆相当于本区的碧玄岩。5个采样地区火山岩具有相同的地幔来源,地幔源区为轻稀土富集型,并富集重稀土元素。
The trace element geochemical studies of volcanic rocks in the Tyler Valley and Ross Island in the Antarctic show that they can be divided into two categories: the basalt or the basalt in the south bank of Bonny Lake, the Crete Mountain and the bird’s horn are part of the mantle equilibrium partial melting As a result, the rhodochrosites of Rhodes and Ivochoria are the result of the magma separation and crystallization, and the parent magma is equivalent to the Bixuan rock in this area. The volcanic rocks in the five sampling areas have the same mantle source, the mantle source area is light-rare earth-rich and enriched in heavy rare earth elements.