syrtis 中文意思是什麼
syrtis
解釋
n. 名詞 （非洲北海岸的）流沙，浮沙。-
The central peaks of several craters on the flanks of syrtis major are made up of an even more silica - rich rock, granite, that may have formed by extreme crystal separation or by large - scale remelting of earlier basalts
在大三角側面，幾個火山口的中間尖點是由一種矽含量更高的巖石花崗巖所構成，可能是經極度晶體分化，或早期玄武巖大?圍重新熔融而形成。
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