It is reported that the Upper Paleozoic coals are the major gas-source rocks in Ordosbasin, one of the most important oil-gas sedimentary basin in our country.
鄂尔多斯盆地是我国重要的含油气沉积盆地之一，上古生界煤是盆地内上古生界天然气藏的主要的气源岩。
A mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium.
一种含有二氧化钛的矿物，呈晶体状，见于变质岩和火成岩中，是钛的主要来源。
In the Ordos Basin, the major controlling factor for the Early Palaeozoic gas exploration is whether (effective) source rocks are developed.
鄂尔多斯盆地下古生界天然气勘探的制约因素是有效烃源岩的问题。
The major elements of clastic rocks in sandstone copper deposit are controlled by the tectonic setting of source area.
分析大姚铜矿砂岩类的常量元素，反映其成岩成矿的构造背景，砂岩铜矿中碎屑岩的常量元素特征主要受物源区控制。
The major source comes from the lower or upper mantle, and the minor part from the wall rocks.
最终判定玉龙矿床成矿物质主要来源于下地壳或上地幔，有少量上地壳围岩物质加入。
The major source comes from the lower or upper mantle, and the minor part from the wall rocks.
最终判定玉龙矿床成矿物质主要来源于下地壳或上地幔，有少量上地壳围岩物质加入。
应用推荐