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In terms of structural characteristics and geochemistry of the granites in conjunction with previous studies, we interpret that the garnet-bearing gneissic granite was formed during the collision between the Tianshuihai terrane and the Southern Kunlun terrane following the closure of a branch of the paleo-Tethyan ocean along the Mazha-Kangxiwa suture zone, the block hornblende-bearing granite was formed during post-orogenic extension. On the other hand, the granites of ca.
根据两个岩体的构造特征,结合前人的研究及地球化学特征,表明含石榴子石片麻状花岗岩形成于同碰撞造山时期,是甜水海地体与西昆仑南带晚古生代岛弧沿麻扎-康西瓦缝合带碰撞峰期的产物,代表了沿麻扎-康西瓦分布的古特提斯洋一个分支的闭合,而228 Ma块状含角闪石花岗岩形成于碰撞造山后的伸展背景。220~190 Ma持续发育的花岗岩是南昆仑地体拼合到北昆仑地体之后在其南部形成的新的深成岩浆弧带。
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littoral benthos:沿岸底棲生物
littoral belt 沿海地帶;沿岸帶 | littoral benthos 沿岸底棲生物 | littoral forest 海岸林