black shale

常见例句

There is a black shale which widespread at Early Cambrian in Guizhou.
貴州早寒武世早期普遍存在一套黑色頁巖。
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環境的突變事件，搆成了許多重要鑛牀的賦鑛巖系。
Black shale is the most favorable lithofacies which has high organic abundance and greatest kerogen type(mainly type I). Laminar mudstone is the second favorable lithofacies.
黑色頁巖巖相有機質豐度高，有機質類型以I型乾酪根爲主，是最有利的富有機質巖相類型，其次爲紋層狀泥巖巖相。

The black shale Marcellus Formation stretches from much of the southern half of New York State through much of Pennsylvania and into West Virginia and Eastern Ohio.
FORBES: My Prediction Was Wrong: Why We Didn't Get To $8 Natural Gas
The entire city of Fort Worth sits over a gas dense layer of black rock called the Barnett Shale that only recently became possible to access.
NPR: Drilling for Gas in Dallas-Fort Worth