The lower submember is dominantly composed of grey sandstone being the ore-hosting horizon;the upper submember consists of grey-green sandstone and mudstone,The upper member of Zhiluo Formation is made of mottled medium-fine grained sandstone and mudstone.
直罗组地层可分为上、下两段 :下段又分为上、下两个亚段 ,其中下亚段主要为容矿的灰色砂岩 ;上亚段主要为灰绿色砂岩、泥岩 ;上段为杂色的中细砂岩、泥岩。
sparry intraclastic calcarenite
亮晶内碎屑砂屑灰岩
THE SEDIMENTARY STRUCTURES AND THE FACIES MODEL OF THE LATE PLEISTOCENE EOLIAN BIOCALCARENITES IN SHIDAO ISLAND OF XISHA ARCHIPELAGO
西沙石岛晚更新世风成生物砂屑灰岩的沉积构造和相模式
sandy algal biosparite
砂质藻屑生物亮晶灰岩
sandy algal biomicrite
砂质藻屑生物微晶灰岩
sandy intrasparite
砂质内碎屑亮晶灰岩
sandy intramicrite
砂质内碎屑微晶灰岩
lithic arkosic wacke
岩屑长石砂岩质杂砂岩
subfeldspathic lithic arenite
亚长石质岩屑砂屑岩
lithic subarkosic wacke
岩屑亚长石砂岩质杂砂岩
packed intramicrite
密集内碎屑微晶灰岩
pellet-bioclastic grainstone
球粒生物屑粒状灰岩
sedimentary rocks,eg sandstone,limestone,slate
沉积岩(如砂岩、石灰岩、板岩).
The cardium sandstone is lithic, being composed of grains of chert, quartz, quartzite, silicified argillite, and other rock fragments.
卡迪砂岩是岩屑砂岩,由燧石,石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。
Any of various dark gray sandstones that contain shale.
杂砂岩任何含有页岩的多种黑灰色砂岩之一
Thin layers of sandy shale, and carbonaceous fragments are locally present.
局部出现砂质页岩薄层和碳质碎屑。
Detritus usually consists of gravel, sand and clay.
岩屑通常是由砂砾,沙和粘土组成的。
The sediments are detrital and largely of greywacke facies.
沉积岩为碎屑质,大部分属于杂质砂岩相。
some thin beds of layered sandstone and dark grey siltstone show slump structures.
一些薄层砂岩和暗灰色粉砂岩显示出滑动构造。
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