marginal arc 中文意思是什麼

marginal arc 解釋
邊緣弧
  • marginal : adj. 1. 邊的，邊緣的；記在欄外的，旁註的；限界的，邊際的。2. 收入僅敷支出的。vt. -ize 忽略，忽視，排斥；使邊緣化，使處于次要地位。
  • arc : A. R. C. ＝ American Red Cross 美國紅十字會。n. 1. 弧；弓形，拱（洞）。2. 電弧，弧光。
  1. Zhifang region of east junggar is situated at the late paleozoic trench - arc - basin system of northeast junggar and south marginal active belt of junggar

    摘要紙房地區位於準噶爾東北晚古生代溝弧盆系和準噶爾南陸緣活動帶。
  2. The lower paleozoic strata in the south kunlun massif are kulafuhe group of cambbrian - ordovician. they consists of metamorphic detrital rocks, limestone, magnetite - bearing basalt, quartzite ( meta - silicalite ), which suggests that they might form at active continent margin. the geochemical characteristics of volcanic and detrital rocks do indicate that they might form at an active marginal environment such as island arc etc. associated with the qimanyuter ophiolite suit, there are lots of early paleozoic granitic plutons

    在昆南地塊上的早古生代地層為寒武?奧陶系庫拉甫河巖群，由變碎屑巖、灰巖、含磁鐵礦玄武巖、石英巖（變硅質巖）等組成，顯示其比昆北地塊有較大的活動性，火山巖和碎屑巖的巖石地球化學特徵也反映為島弧及活動邊緣環境。
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