angren 中文意思是什麼
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The results of combined internal mineral separates and whole - rock sm - nd isochron age for gabbro dikes from : luobusha, angren and xiubugabu in yarlung zangpo ophilite zone are 177ma, 166ma and 173ma respectively. the 4lar - 39ar step heating spectra of rikangba ophiolite suggest that its formation age is also isoma. it indicates that there was a stronger regionally inagmatism during middle - early jurassic, and the time of i75ma was the main period of the magmatic event of yarlung zangpo ophilite
對鄔郁盆地嘎扎村組火山巖剖面的年代學研究表明，該區后碰撞期火山巖的~ （ 40 ） ar - ~ （ 39 ） ar年齡為12 ? 14ma ，侵入其中的花崗巖脈的~ （ 40 ） ar - ~ （ 39 ） ar年齡為10 . 84ma ，與岡底斯西段前人研究資料對比，認為岡底斯帶后碰撞火山巖時代有自西向東逐漸年輕的趨勢。 -
The basic to ultra - basic rocks are distributed along suture zones, whereas the intermediate to acidic intrusives occur mainly to the south and north of the arsuo tectonic melange zone and the angren ophiolitic melange zone
基性-超基性巖沿結合帶分佈，而中酸性侵入巖主要分佈在阿索蛇綠混雜巖和昂仁蛇綠混雜巖的南北兩側。
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