常見(jiàn)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體由地幔橄欖巖組成,主要巖石類型是方輝橄欖巖和純橄欖巖,缺少典型蛇綠巖剖面中的洋殼單元。The ore-forming materials of Erdaogou gold deposit in Beipiao, Liaoning Province originating from Archean gneiss and late Yanshan magmatite. 遼寧北票二道溝金礦床成礦物質(zhì) ,來(lái)源于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. 由于砂巖、泥巖、頁(yè)巖、蒸發(fā)巖、雜色巖等多種軟硬巖層互層結(jié)構(gòu)和工程活動(dòng)等因素的影響,沿著軟弱結(jié)構(gòu)面易發(fā)生滑坡、差異風(fēng)化等工程地質(zhì)問(wèn)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(zhì)、礦床(田)構(gòu)造、地層巖性、巖漿巖和圍巖蝕變等對(duì)金礦成礦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(xué)成分特別是微量元素的含量及分布特征反映了其物質(zhì)來(lái)源和大地構(gòu)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、礦體分布在斑狀混合巖中的小構(gòu)造內(nèi),礦體產(chǎn)狀嚴(yán)格受構(gòu)造控制。 返回 magmatite