The products of phreatomagmatic eruption include basaltic pyroclasts and rock fragments of basement with greatly different grain sizes and isoaxial structure.
用分形理论分析了吉林龙岗火山碎屑物粒度的分形结构特征。
Their characteristics of mineralogy and geochemistry indicate that they are, at first, a type of pyroclasts generated from the alkaline basaltic volcanic activity in north Qinghai Xizang plateau and adjacent region, and then with the loess strata, the.
此外，本文更为强调的是，在火山碎屑形成过程中存在具有富Ｎｉ和Ｃｅ，高Ｓｍ／Ｎｄ比以及低Ｅｕ／Ｓｍ比等特点的地外物质的参与，据以论证这种火山活动确系Ｎ／Ｑ界面撞击事件引发。
The Xiawuerhe Formation(P_2w~3) is a thick layered arenaceous conglomeratic pyroclastic alluvial fan in Well 530 block of Karamay oil field.
克拉玛依油田530井区下乌尔禾组为一套厚层状的砂质砾状结构火山碎屑冲积扇沉积物,地层岩性相对单一,且自然伽马、自然电位等测井曲线特征与岩相缺乏明显的关系。
Because the type of igneous rock is more,it is very difficult to name and identify,we apply Bayesian discrimination to research lithologic identification in the logging interpretation of volcaniclastic rock.
针对火成岩岩石类型多、测井识别难度大问题,应用贝叶斯判别分析方法对火山碎屑岩测井解释中岩性识别问题进行研究。
The Nibao gold deposit in Guizhou consists of multistory gold ore bodies,each of which is closely associated with the Permian volcaniclastic rocks.
泥堡金矿具多层含矿特征,各层金矿体均与二叠系火山碎屑岩密切相关。
meanwhile,the volcaniclastic rocks were modificated by the thermal fluid activity,for example,sericitization of plagioclase,chloritization of volc.
同时,受热流体活动的影响,热流体对火山碎屑岩具有一定改造作用,如在安山质岩屑凝灰岩中,斜长石绢云母化、火山岩岩屑绿泥石化明显;在凝灰质泥岩中,热流体对围岩中有机碳具有明显的"催熟"加热作用,微量元素则出现异常现象。
A gold deposit associated with pyroclastic rock and hydrothermal exhalation:Nibao gold deposit in Guizhou Province,China;
一个与火山碎屑岩和热液喷发有关的金矿床——贵州泥堡金矿
Features of igneous rock and pyroclastic rock and their influences on Yaopo coal-bearing formation,Beijing area;
北京地区岩浆岩和火山碎屑岩的特征及其对窑坡煤系的影响
Research Methods is applied in Hailar in pyroclastic rock recognition issues in Hailar,and have achieved good results.
将研究方法应用在海拉尔地区火山碎屑岩岩性识别问题中,取得了很好的效果,岩性解释符合率80%。
The Logging Research for Pyroclastic Rock Identification;
火山碎屑岩岩性的测井识别方法研究
Diagenetic Characteristics of Clay Minerals in Volcaniclastic Rock;
火山碎屑岩中粘土矿物的成岩作用特征
Research on the Method of Automatic Segmentation of Well Logs of Pyroclastic Rock
火山碎屑岩层测井曲线自动分层方法研究
GRAIN-SIZE CHARACTERISTICS OF THE SIHAI TEPHRA SHEET AND THEIR GEOLOGICAL IMPLICATIONS
吉林龙岗四海火山碎屑物粒度分析与地质意义
Study on the Quaternary Volcanic Apparatus and Cause of the Pyroclastic in Longgang Region, Jilin Province;
吉林龙岗第四纪火山机构及火山碎屑物成因研究
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
R.Schmidt﹐Descriptive Nomenclature &Classification of Pyroclastic Deposits &Fragments﹐Recomendation of IUGS Subcommision on the Systematics of Igneous Rocks﹐Geology﹐Vol.9﹐5﹐1981.
孙善平﹕国内外火山碎屑岩的分类、命名、历史及现状﹐《地球科学》﹐卷12﹐6﹐1987。
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
TYPES, CHARACTERISTICS AND GEOLOGIC SIGNIFICANCE OF THE DEVONIAN PYROCLASTIC TEMPESTITES IN EAST AND WEST JUNGGAR, XINJIANG
东、西准噶尔泥盆系火山碎屑风暴岩类型、特征及其地质意义
The Diagenesis of Pyroclastic Rock in Nanbeier Depression of Tamuchage Basin
塔木察格盆地南贝尔凹陷火山碎屑岩储层成岩作用
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
Characteristics of Volcaniclasitic Rocks Developed in Member 2,Yingcheng Formation,Lower Cretaceous,in the Eastern Margin of Songliao Basin
松辽盆地东缘下白垩统营城组二段火山碎屑岩的发育特征
As bad as the pyroclastic flows are, the ash injected into the atmosphere can have even more far-reaching consequences.
如同火山碎屑流般凶恶，喷发进入大气层的火山灰甚至会造成更深远的影响。
A Study of Modulated Structures and Complex Structures in Natural Alkali Feldspars:Ⅳ.Studies on Complex Structures of Alkali Feldspars of Volcaniclastic Rocks in the Northeast Part of Jiangxi Province
自然界碱性长石调制结构及复结构的研究 四、赣东北地区火山碎屑岩中
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 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。