After studying secondary porosity forming cause,it is turned out that there is some direct relation between formation of all kinds of dissolution porosity and dissolution and erosion of volcanic material.
通过次生孔隙成因研究发现,各种溶蚀孔隙的形成与砂岩中火山物质和硅酸盐碎屑颗粒的溶蚀、蚀变关系密切。
Some advances in the study of volcanic geology and a hazards analysis of Tianchi volcano;
长白山天池火山地质学研究的若干进展与灾害分析
Discovery of Quaternary potassic volcanic rocks and the establishment of Sailipu Formation in West Gangdis of Tibet, China;
冈底斯西段第四纪钾质火山岩的发现及赛利普组的建立
Genesis of Heishibeihu Cenozoic potassic volcanic rocks from northern Qing-hai-Tibet Plateau, China
青藏高原北部黑石北湖新生代钾质火山岩的成因
Characteristics and genesis of potassic volcanic rocks from Nuomin volcanic groups
诺敏火山群钾质火山岩特征与成因
A landslide or mudflow ttriggered by volcanic fragments from flanks of a volcano.
火山侧翼的火山物质造成的滑坡或泥石流.
A landslide or mudflow of volcanic fragments on the flanks of a volcano.
火山泥流火山侧翼的火山物质造成的滑坡或泥石流
Pulverized particulate matter ejected by volcanic eruption.
火山灰火山爆发喷射出来的粉末状颗粒物质
Vitrified matter expelled by a volcano.
熔岩火山喷发的玻璃化物质
Any of various artificially produced substances resembling pozzuolana ash.
类似的人造白榴火山灰任何人工制造的，相似于白榴火山灰的物质
volcanic rift zone
【地质】火山断裂带
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
A volcanic rock formed by the welding together of tuff material from an explosive volcanic eruption.
熔结凝灰岩火山喷发后凝灰物质聚集后形成的一种火成岩
MAGMATIC INCLUSIONS IN PHENOCRYSTALS OF ANDESITIC LAVAS, KRAKATAU VOLCANO, INDONESIA
印度尼西亚克拉卡托火山安山质熔岩斑晶矿物中的岩浆包裹体
portland-pozzolana cement
火山灰质硅酸盐水泥
A mountain formed by the materials ejected from a volcano.
火山从山中喷出的物体形成的一座山
of a volcano,etc)eject sth violently
（指火山等）喷出某物
from 190 million to 230 million years ago; dinosaurs, marine reptiles; volcanic activity.
恐龙，两栖动物，火山活跃。
others, perhaps by one hot material which came out of a volcano.
还有的可能是由火山喷射出来的炽热物质引起的；
Volcano and earthquake are all results of internal material motion.
火山与地震都是地球内部物质运动的结果和表现。
Source of volcanic ash in the sediments of Sihailongwan maar lake, NE China, and its significance
四海龙湾玛珥湖沉积物中碱流质火山灰的来源及其意义
Researches on the Roles and Tactics of the Intangible Culture Heritage "Torch Festival" to the Tourism Development in Liangshan Autonomous Prefecture;
非物质文化遗产“火把节”对凉山旅游的作用及策略研究
West Changbaishan volcanic slope-the attraction of science investigation and tourism;
长白山西坡—火山地质科考、旅游胜地