1. a dark form of shale characterized by a relatively high degree of carboniferous compounds The studies of others indicate that major phosphorite deposits are often associated with black shales and accumulated during only a few epochs of geologic history. — D. Z. Pipe et al., Science, 4 Apr. 1975
black shale 片语
片语
Eureka black shale尤里卡黑页巖
black muddy shale黑色泥质页巖
Niutitang black shale牛蹄塘组黑色巖系
black shale formations黑色页巖建造
sulfide containing black shale硫化物黑色页巖
marine black shale海相黑色页巖
Clip Black Shale夹黑色页巖
black graptolite shale黑色笔石页巖
black shale 例句
英汉例句
Ore prospect should be directed to PGE deposits both related to Emeishan basalt and black shale sequence.
要同时重视找寻与峨嵋山玄武巖有关和与黑色巖系有关的两类铂族矿床。
During the prospecting in Qinggchengzi area, we should also pay attention to other minerals occurred in the black shale series.
在青城子地区还应当重视开展产在黑色巖系中其他矿种的找矿勘查工作。
The Upper Triassic Formation is sub-abysmal basinal facies deposit in the south and north depressions. A black shale layer developed.
上三叠统在南、北坳陷为次深海盆地相沉积,发育一套黑色页巖烃源层;
The black shale series in northern Guizhou consist mainly of silicate, phosphate, metal-rich shale and black shale.
黔北下寒武统黑色巖系主要由硅质巖、磷块巖、多元素富集层、黑色页巖等组成。
The Miaohe-type biotas occur in the black shale and siliceous shale in the transitional areas from the late open platform facies to deep-water shelf-bathyal facies.
In the early Nenjiang stage, a largest lake transgression occurred in the Songliao basin, depositing a group of black shale with intercalation of oil shale in the major areas of basin.
松辽盆地在嫩江早期发生了最大湖侵事件,在整个盆地范围内形成了一套黑色泥页巖夹油页巖。
The presenting of black shale series reflects abrupt environmental events, which formed many important ore hosting rock series.
黑色巖系的形成反映了环境的突变事件,构成了许多重要矿床的赋矿巖系。
The REE geochemical characters and formational conditions of the black shale series in the Huanglong golden deposit in Hanyin Shaanxi Province were discussed based on ICP-MS analytical data.