Two layers of tephra deposits can be identified from the upper sediments in Core CSH1 and are characterized by coarser particl.
从岩芯最上部的沉积物中可识别出2层火山碎屑沉积,它们都具有沉积物粒径突然变粗、SiO2和Na2O等化合物的质量分数突然增加以及粘土矿物、挥发份、Fe2O3、MgO、CaO和Sr的质量分数迅速下降等特征。
Petrological,mineralogical and geochemical characteristics of Ordovician volcanic-clastic sedimentary rocks in Bangxi area,Northwest Hainan Island,South China: Implications for provenance and tectonic setting;
海南岛北西部邦溪地区奥陶纪火山-碎屑沉积岩岩石学、矿物学和地球化学:源区及构造环境暗示
Tuff commonly exists in reservoir with pyroclastic sedimentary rock;logging characteristic of shale and tuff is similar,both display higher GR value.
火山碎屑沉积岩储层普遍含凝灰,凝灰与泥质测井特征相似,均为高自然伽马,用常规石英砂岩的测井解释方法无法计算其储层泥质含量。
Computation Method for Shale and Tuff Content in Reservoir with Pyroclastic Sedimentary Rock
火山碎屑沉积岩储层泥质与凝灰含量计算方法研究
PETROLOGICAL CHARACTERISTICS OF THE SEDIMENTARY VOLCANICLASTIC ROCKS OF THE FOSSIL HILL FORMATION(EOCENE) IN KING GEORGE ISLAND,WEST ANTARCTICA
南极乔治王岛始新统化石山组沉积火山碎屑岩特征
Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series.
其原岩岩石类型有火山岩，陆缘碎屑沉积岩，火山、岛弧拉斑系列或钙碱系列火山岩、蛇绿岩等。
Rock debris transported and deposited by or from ice, especially by or from a glacier.
冰碛由或从冰，尤其是冰山，移动和沉积的碎屑
The Hongtaiping polymetallic deposit lies in the Permian marine volcanic rocks, Palaeozoic geosyncline and the transitional belt of the clastic sedimentrary rocks in the Yanbian area.
红太平多金属矿床产于延边古生代地槽区二叠系海相火山岩中及其与碎屑沉积岩的过渡带上。
Songpan-Ganzi Block and the Longmen Mountains Clastic Sedimentary Rocks Geochemistry;
松潘—甘孜及龙门山地区碎屑沉积岩地球化学研究
Pyroclastic rocks are a kind of transitional and complex rocks between lavas and sedimentary rocks.
火山碎屑岩是介于溶岩和沈积岩之间的过渡类型岩石，岩类复杂。
THE CHARACTERISTICS AND GENETIC SIGNIFICANCES OF PROBABILITY ACCUMULATION CURVES OF DEVONIAN MARINE VOLCANOCLASTIC ROCKS IN EAST ZHUNGEER
东准噶尔泥盆系海相火山碎屑岩概率累积曲线特征及其成因意义
Sequence Structural Characteristics of the Devonian Volcanoclastic Turbidites in Northern Xinjiang and Their Geological Significance
新疆北部泥盆系火山碎屑浊积岩层序结构特征及其地质意义
A study on detrital minerals in the sediment of the Great Wall Bay
长城湾沉积物中碎屑矿物的初步研究
Composed chiefly of rock fragments of volcanic origin.
火或碎屑物的由火山造成的碎石所组成的
The Logging Research for Pyroclastic Rock Identification;
火山碎屑岩岩性的测井识别方法研究
The ash, cinders, and other fragments become a consolidated rock.
火山灰、火山渣和其它碎屑变成了固结的岩石。
In clastic sediments, particle size is an important factor.
在碎屑沉积物中，颗粒大小是个重要因素。
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。
The assemblages of clastic components and sedimentary environment of the Core 1787 from the East Pacific Ocean
东太平洋1787柱碎屑组分组合与沉积环境
in the east sea area of Dongsha Islands, calcareous debris are enriched;
东沙群岛以东海区钙质生物碎屑沉积丰富;
A STUDY ON CLASTIC MINERALS OF SURFACE SEDIMENTS IN THE SEA AREA NORTHWEST OF THE ANTARCTIC PENINSULA
南极半岛西北部海域表层沉积物碎屑矿物研究