晶屑

  • 【地】crystal pyroclast
晶屑晶屑
  1. 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 .

  2. 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 .

  3. 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

  4. 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 .

  5. 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 ;

  6. 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 .

  7. 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 .

  8. 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 .

  9. 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.

  10. 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 .

  11. 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 .

  12. 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

  13. 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

  14. 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 .