2) coarse-sand rock and conglomerate
粗粒级碎屑岩
3) coarse fragment
粗碎屑
1.
Based on analysis of heavy minerals, detrital components of gravel - bearing coarse fragments, maturity of minerals and clay components of mudstones, it is believed that Jurassic would have sourced mainly from two directions, which are the southern Kuluke Mountain and the western Tashidian area respectively.
通过对该区重矿物、含砾粗碎屑组分、矿物成熟度及泥岩粘土成分等的分析,认为该区侏罗系存在两个主要的物源方向,一个来自南部库鲁克山,另一个来自西部的塔什店地区。
2.
Methods Using the three parameters of heavy mineral assemblage of detrital rock,coarse fragment component and mineralogic maturity,the basin sedimentary boundaries will be foun and studied.
方法从大量的地质资料入手,利用碎屑重矿物组合、粗碎屑组分和矿物成熟度3种参数确定古盆地边界。
4) coarse-grained clastics
粗粒碎屑
5) phenoclast
['fi:nə,klɑ:st]
粗显碎屑
6) clastic rock
碎屑岩
1.
Promising natural gas exploration belts in clastic rock formations,Sichuan Basin;
四川盆地碎屑岩领域有利天然气勘探方向浅析
2.
Feasibility of time-lapse seismic monitoring in long-period water-drive continental facies clastic rock reservoir.;
陆相碎屑岩油藏长期水驱时移地震监测的可行性
3.
Sedimentary facies of lower Cretaceous clastic rock in Hongshan area in the north edge of Qaidam Basin;
柴达木盆地北缘红山地区下白垩统碎屑岩沉积相特征
补充资料:火成碎屑岩
火成碎屑岩 pyroclastic rock 由火山碎屑物质堆积而成的岩石。又称火山碎屑岩。其特征介于熔岩与正常沉积岩之间。火山碎屑物的含量一般大于50%,其次为正常沉积物或熔岩物质。碎屑物的种类有岩屑、晶屑、玻屑、火山弹、浮岩及火山渣等。碎屑物的大小不一,常见棱角状。具集块结构、火山角砾结构、凝灰结构、火山尘结构等和假流纹状、斑杂状、火山泥球状、层理状等构造。分为两大类型:①熔结火山碎屑岩。由火山碎屑物经熔结而成。通常火山碎屑物含量大于90%。包括熔结集块岩、熔结角砾岩、熔结凝灰集块岩和熔结凝灰岩等。②正常火山碎屑岩。由火山碎屑物质经一定的压实作用形成。包括集块岩、火山角砾岩、火山凝灰角砾岩和凝灰岩等。其中凝灰岩分布最广。此外,火山碎屑岩与熔岩和正常沉积岩之间还存在一系列过渡类型。广义上,含火山碎屑物质大于10%的岩石都可称作火山碎屑岩。与火山碎屑岩有关的矿产有各种金属和非金属矿产(如Fe、Cu、Pb、Zn、S、B等)。如中国甘肃的白银厂铜矿床、镜铁山铁矿床等。 |
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