摘要
莱阳组由砾岩、砂岩、泥岩、页岩等岩石组成。砂岩中出现赤铁矿、粘土矿物、方解石、石英及斜长石等五种主要的胶结物，它们形成于不同的成岩作用阶段。早期成岩阶段形成了赤铁矿、粘土矿物、方解石和石英，晚期成岩阶段形成斜长石，而表生成岩阶段则再次沉淀出赤铁矿。
The Laiyang Formation is composed of conglomerate, sandstone, mudstone and shale. The authigenic minerals, i. e. hemalite, clay mineral, calcite, quarts and plagioclase are the major cements which appear in sandstone.They were deposited in different periods of diagenesis. Hemalite, clay min-eral, calcite and quarts were formed in the early diagenesis period. In the late diagenesis period, plagioclase was deposited' Hemalite was deposited again in the epidiagenesis period.
出处
《海洋湖沼通报》
CSCD
北大核心
1994年第1期25-29,共5页
Transactions of Oceanology and Limnology
关键词
胶莱坳陷
莱阳组
碎屑岩
成岩作用
Jiaolai depression, Laiyang Formation, Clastic rock, Diagenesis
