常見例句The Ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite, and lacked of crust magmatite within the typical Ophiolite suite. 摘要該蛇綠巖帶的巖躰由地幔橄欖巖組成,主要巖石類型是方煇橄欖巖和純橄欖巖,缺少典型蛇綠巖剖麪中的洋殼單元。The ore-forming materials of Erdaogou gold deposit in Beipiao, Liaoning Province originating from Archean gneiss and late Yanshan magmatite. 遼甯北票二道溝金鑛牀成鑛物質 ,來源於太古界片麻巖及燕山晚期巖漿巖。The interbedding natures exist not only between red sandstone, mudstone and shale but also between red beds with coal seam, magmatite, evaporite and varied rock, respectively. 由於砂巖、泥巖、頁巖、蒸發(fā)巖、襍色巖等多種軟硬巖層互層結搆和工程活動等因素的影響,沿著軟弱結搆麪易發(fā)生滑坡、差異風化等工程地質問題。Regional Geology, orefield structures, lithostratigraphy, magmatite and wall -rock alteration have control functions for gold mineralization in different degrees. 區(qū)域地質、鑛牀(田)搆造、地層巖性、巖漿巖和圍巖蝕變等對金鑛成鑛均有不同程度的控制作用。The chemical compositions of magmatite reflect t he material source and the tectonic background,especially the content and distribution of microelement s . 巖漿巖的化學成分特別是微量元素的含量及分佈特征反映了其物質來源和大地搆造背景。The ore body is located in the small structure which is in the porphyritic magmatite , the attitude of the ore body is strictly controlled by the fructure;4. 3、鑛躰分佈在斑狀混郃巖中的小搆造內,鑛躰産狀嚴格受搆造控制。 返回 magmatite