initial volcanic stage 中文意思是什麼
initial volcanic stage
解釋
初始火山期-
2 both the hanging wall and the footwail rock of ore bodies are garnet biotite schist, protoliths are alkaline volcanic rocks ( tracyh andesite ). according to characteristics of trace elements assemblages and the setting of tectonics, these alkaline volcanic rocks were derived from the lower degree melting of metasomatic and enriched mantle ( eml ) in the initial stage of middle proterozoic epoch. they strongly enriched in large ion lithophile elements ( lile ), such as ba
2 、礦體頂、底板圍巖(石榴石黑雲母片巖、鈉長黑雲母片巖等)的原巖為堿性火山巖(粗面安山巖) ,相對富集大離子親石元素ba 、 cs 、 rb 、 k 、 lree及貧zr 、 sr 、 ti 、 hf 、 hree ,為早元古代末期-中元古代早期交代富集地幔低程度部分熔融所形成的堿性火山巖。 -
In this paper, the main conclusion have been put forword as following : 1 yinachang fe - cu - ree deposit occurred in wuding - lufeng volcanic fault deporssion during the initial stage of kunyang rift
主要認識如下: 1 、迤納廠礦床產于昆陽裂谷初期形成的祿豐-武定火山斷陷盆地中。
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