晶屑
- 【地】crystal pyroclast
-
矿体主要赋存于中酸性晶屑凝灰岩到沉凝灰岩中。
Ore bodies is mainly deposited in intermediate-acid crystal tuff and tuffite .
-
第三段以凝灰岩、铁质白云岩、晶屑凝灰岩、火山角砾岩为主。
The thrid part are tuff , ferruginous dolomite , crystal tuff and volcanic breccia .
-
从剖面上晶屑含量变化探讨火山灰流凝灰岩火山爆发的机制
The mechanism of volcano eruption of pyroclastic flow tuff according to the research of the changes of pyrogenic mineral contents in field section
-
岩石学研究显示这些凝灰岩主要为晶屑或玻屑凝灰岩,晶屑多为浅色矿物,长石和石英,暗色矿物较少。
Petrological studies indicate that these tuffs are mainly crystal or vitric tuffs , and crystal fragments are mostly light minerals , feldspar and quartz , dark minerals rather little .
-
赣东南火山岩区主要发育侏罗纪中、晚世中酸性火山碎屑岩&火山熔岩,其中以爆溢相产出的流纹质晶屑凝灰熔岩分布最广;
In the southeast Jiangxi volcanic terrain are mainly developed Middle-Late Jurassic mildly acidic volcanic clastic rocks and volcanic lava , of which the most widely distributed are the explosive-effluent rhyolitic crystal fragment tuff lava ;
-
石英晶屑内熔融包裹体发育。峨嵋矿区矿体赋存于流纹质晶屑凝灰岩、熔结凝灰岩、含火山角砾(集块)凝灰岩中。
A great mumber of melt inclusions are there in the quartz phenocrysts . The ore bodies of Emei pyrophyllite are located in rhyolitic crys-tal fragment tuff , ignimbrite and volcanic breccia ( agglomerate ) - bearing tuff .
-
夏里组为一套砂泥岩组合夹泥晶生屑灰岩等组成。
A set of sandstone and few mudstone combination and Micritic bioclastic limestone composes of the Xili Formation .
-
开阔台地相岩石类型主要为块状泥晶生屑灰岩和生屑灰岩,具块状层理、丘状层理和生物屑粒序层理。
Open platform facies metamorphic rocks are massive micritic bioclastic limestone and bioclastic limestone , with massive bedding , convolute bedding and graded bedding biological debris .
-
潜江凹陷潜江组粒屑碳酸盐岩性主要发育鲕粒石灰岩、砂屑灰岩、泥晶砂屑云岩、藻团块灰岩等。
The grained Carbonate rocks of Qianjiang Formation in Qianjiang Sag can be divided into oolitic limestone , sand-clastic limestone , mud-crystal sand-clastic dolomite , alga-gobbet limestone etc.
-
描述和讨论的主要岩石类型有亮晶生物屑灰岩、泥晶海百合丘灰岩、含有机质藻粒泥晶灰岩、放射虫硅质岩及含钙质生物硅质岩。
Main types of rock are described and discussed : sparry bioclastic limestone 、 micritic cncrinite 、 organic alge micrite 、 radiolarian chert and calcareous bioclastic chert .
-
亮晶内碎屑砂屑灰岩下石炭统为海相碎屑岩及中酸性岩组合;
Lower Carboniferous is composed of sea facies fragments and mid-acidic component igneous rock .
-
亮晶内碎屑砂屑灰岩南极半岛西北部海域表层沉积物碎屑矿物研究
A study on clastic minerals of surface sediments in the sea area northwest of the Antarctic Peninsula
-
亮晶内碎屑砂屑灰岩青海某地第三纪红色碎屑岩层中发现金矿物
The found of auriferous mineral in red clastic ? Strata of tertiary period , somewhere in Qinghai
-
并在此基础上探讨大应变切削过程中纳米晶/超细晶切屑的细化机理和强化机制。
The refinement and strength mechanism of ultra-fine grained chips in large strain machining are discussed on the basis of above studies .