bedded chert 美 英 un.层状燧石 网络层状硅质岩 英汉 网络释义 un. 1. 层状燧石
古生代放射虫硅质岩地层中富含浮游相生物化石,这些化石中的脂类物质和有机质在地层中往往形成海相烃源岩而富含油气资源。 更多例句>> 4) bedded chert formation 层状硅岩建造5) siliceous reservoir rocks 硅质储集岩层6) phyllosilicate-framework fault rock 层状硅酸盐/框架断层岩补充资料:硅质岩 硅质岩sil...
1) bedded chert 层状燧石2) flint clay 燧石状土3) oolitic chert 鲕状燧石4) bone chert 骨状燧石<地>5) chalcedonic chert 玉髓状燧石6) flint clay 燧石状粘土补充资料:土木香—总状土木香 【通用名称】 土木香—总状土木香 【其他名称】 【中文名】 : 土木香—总状土木香 【类别】 : ...
Bedded chert is a distinctive rock type characterized by a rhythmic alternation of quartz-rich chert beds and clay-rich interbeds. The origin of the lithologic variations is not well understood. A rock magnetic study of a sequence of alternating bands of radiolarian-rich and clay-rich bands ...
Define interbedded. interbedded synonyms, interbedded pronunciation, interbedded translation, English dictionary definition of interbedded. adj geology occurring between beds, esp occurring between strata of a different origin or character Collins Englis
Triassic bedded cherts in central Japan are not pelagicGenetics model of bedded chert in the Emine Zone (Bulgaria)Site investigations for a bedded-salt pilot plant in Permian basinHydrogen and oxygen isotope ratios in nodular and bedded cherts ☆Mineral composition of matrix in thick-bedded Istebna...
Bedded chert in marine deposits consists mainly of biogenic silica, which originates from siliceous remains of radiolarians, sponges, and diatoms. Changes in the bed thickness of chert are interpreted to represent orbitally paced variations in marine productivity1 and/or the burial flux of biogenic ...
Hydrous sodium silicates from lake magadi, kenya: precursors of bedded chert. Sediment supply and the development of the coarse surface layer in gravel-bedded rivers Flow turbulence intensities, shear layer dynamics and sediment transport at a sand-bedded confluence ...
chert and shale interbedding, thin-layer limestone2. In the red rock beds of Jurassic System in Sichuan basin, Three Gorges Reservoir area, Yunnan Province and Guizhou Province, there are a large number of soft–hard-interbedded rock slopes. Especially in the Three Gorges Reservoir area, due ...
This stratigraphically complete bedded chert may provide a unique window into understanding the Ediacaran-Cambrian transition. Two goals are pursued in this study. First, we aim to constrain the origin of Si making up the bedded cherts. Based on various major and trace element systematics as well...