black shale meaning in English
黑色页岩
Examples
- Dinosterane from the neoproterozoic datangpo black shales and its biological implications
新元古代大塘坡组黑色页岩中的甲藻甾烷及其生物学意义 - Especially in shuanghu area and amdo 114 station , the sedimentary rocks is organic - rich , mostly consist of black shales , marls and mudstones
尤其是双湖地区和安多114道班岩性特殊，为一套富含有机碳沉积，主要为黑色页岩、泥灰岩和泥岩。 - ( 2 ) cia can not reflect the degree of chemical weathering of black shales precisely , and a - cn - k diagram can not reflect chemical weathering processes of black shales completely
( 2 ) cia值并不能灵敏地反映黑色页岩的化学风化程度， a - cn - k三角图解并不能完整地反映黑色页岩化学风化的整个过程。 - ( 5 ) in some regions covered by black shales continuously , black shales weathering might be the cause of variations of regional background values , thus the cause of some endemics and other geochemical diseases
( 5 )在黑色页岩连续分布区内，黑色页岩风化、区域元素背景值、地克病等地球化学病症三者之间具有某种程度的因果关系。 - This is similar to the synchronous deposition of black shale in europe . during the lower toarcian , coincident with the peak of the lower jurassic transgression , highly bituminous shales were deposited in extensive parts of the european epicontine
这种有机碳异常富集的沉积层被描述为大洋缺氧事件（ oae ）的沉积，与白翌纪赛诺曼十仑期类似。