melanocratic是什么意思_melanocratic短语搭配_melanocratic权威例句

同近义词

• adj.[地质]深色的；暗色的

  dark   /   fuscous

词组短语

1. melanocratic mineral 矿物 暗色矿物

2. melanocratic rock 岩 暗色岩 ; 深色岩

3. melanocratic microgranular enclaves 暗色微粒包体

4. melanocratic dike 暗色岩脉

权威例句

1. Major source rock of this area was melanocratic mudstone of Sha 3 formation, which was widely distributed, thick, of good kerogen type, and highly mature in evolution.

该区烃源岩主要为沙三段的暗色泥岩，具有分布广、厚度大、干酪根类型好、演化程度高等特点；

2. Therefore, it is thought that, north of this working area is the merging part of large submarine fan sands and melanocratic mudstone of half deep lacustrine facies, and is favorable to form lithologic reservoir.

由此认为：研究区北部是大型水下扇砂体与半深湖相暗色泥岩交汇之处，有利于形成岩性油藏。

3. In the immense and vast global biosphere, there exists a kind of noteless melanocratic organic matter which is humic substances.

在浩瀚广袤的地球生物圈里，蕴藏着一种不引人注目的暗色有机物，这就是腐植酸类物质。

4. The uranium ore deposits are controlled by the factors such as the basement granites of the basins, the N-S trending regional faults, the melanocratic coal-bearing clastic rocks and the multiple cold and/ or thermal water reworking.

铀矿床的形成受盆地基底花岗岩、南北向区域性控盆断裂、暗色含煤碎屑建造、多次冷水或（和）热水改造等因素控制。