生物层段 biomere
- 黑层段是大洋缺氧造成的结果,生物大量灭绝,深层水具旋脊有孔虫的所遭受的危机反映出当时海洋深层水体严重缺氧的特征;
The black unit including a biotic extinction was caused by oceanic anoxic event. Crisis that deepwater keeled foraminifera encountered represents a ferocious anoxia in deep marine environment . - 长兴组礁、滩储层的储集空间多样,粒间孔、粒间溶孔、粒内溶孔及生物溶模孔为主要储集空间,局部层段溶洞、裂缝发育。
The reservoir spaces included inter-grain pores, dissolved inter-grain pores, dissolved intra-grain pores and mold pores of fossils. caves and fissures existed in some layers. - 沙三段的扇中砂体、沙一段底部的生物滩坝、东营组的河流砂体都是优越的储集层。
The middle fan sand in Es3, the bioclastic beach bar at the bottom of Esl, the river sand in Ed formed very best reservoir.
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