“杂岩”用英语怎么说

在穆斯科克斯杂岩体中,铬铁矿矿层仅产于长石质橄榄岩中.The chromite deposits in the Muskox Complex occur only in feldspathic peridotite.有一种倾向认为布施维尔德杂岩体是多中心溢出的产物.A trend of thought ascribes the Bushveld Complex to eruption from more than one center....