crystal tuff

用法例句

Based on restudying the sedimentary sequence and evolution of Banxi Group in Xiushan-Fanjingshan area,the authors performed the crystal tuff SHRIMP zircon U-Pb dating for Hongzixi Formation of Banxi Group in Xiushan area.

关于板溪群的时代归属及其地层划分对比,一直以来存在较大争议,为此作者在重新研究了秀山—梵净山地区板溪群的沉积序列及其演化的基础上,首次对秀山凉桥地区的板溪群红子溪组顶部的晶屑凝灰岩进行了SHRIMP锆石U-Pb测年,研究显示板溪群早期的盆地扩张阶段结束于790Ma左右,随后盆地转入快速充填和差异升降阶段。

Based on a comprehensive study on faciology, petrology and petrogeochemistry, the ignimbrites widely distributed in Mesozoic volcanic basin in South Jiangxi are divisible into three types namely the clastic flow, the surge flow, and the subvolcanic types, of which the genetic mechanism has been discussed in this paper.

本文通过对赣南中生代火山盆地内广泛分布的熔结凝灰岩类的岩相学、岩石学、岩石 地球化学特征的综合研究，将熔结凝灰岩类划分为碎屑流型、涌流型、次火山型等３种类型，并对其 成因机理进行了讨论。

In pyromerides and ignimbrites,micropores from devitrification are the second largest pore type after the vesicle,accounting for 20%and 30%of the total of all pore types in pyromerides and ignimbrites respectively.

球粒流纹岩、熔结凝灰岩中脱玻化孔是仅次于气孔的第二大孔隙类型,球粒流纹岩和熔结凝灰岩中脱玻化孔分别占相应岩石中所有类型孔隙的20%,30%左右。

SHRIMP Zircon U-Pb Age of Crystal Tuffs on the Top of Sinian Laobao Formation at Bahuang, Tongren Area, and Its Geological Implications

铜仁坝黄震旦系老堡组顶部晶屑凝灰岩SHRIMP锆石U-Pb年龄及其地质意义

sparry intraclastic calcarenite

亮晶内碎屑砂屑灰岩

packed intramicrite

密集内碎屑微晶灰岩

sandy algal biosparite

砂质藻屑生物亮晶灰岩

sandy algal biomicrite

砂质藻屑生物微晶灰岩

sandy intrasparite

砂质内碎屑亮晶灰岩

sandy intramicrite

砂质内碎屑微晶灰岩

According to the lithologic characteristics of tuff clasts, descendant tuff clasts and water-carried tuff clasts can be divided.

根据凝灰碎屑的岩石学特徵，可将其分为降落型凝灰碎屑和水携型凝灰碎屑两类。

pellet-bioclastic grainstone

球粒生物屑粒状灰岩

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

The basic type of rock in alliterated belts is shard ruff and major alteration type is the mineralization of montmorillonite, siliceous mineralization, the width of the minerogenetic alliterated belts is17 m.

蚀变带的岩石基本类型为玻屑凝灰岩，主要的蚀变类型为蒙脱石化作用和硅化作用。

Alkali aggregate expansion reaction of mottled micrite dolomitic limestones

豹斑白云质泥晶灰岩的混凝土碱骨料反应膨胀行为

caprinid biosparite

双壳类生物亮晶灰岩

dolomitic biomicrite

白云石质生物微晶灰岩

The tuffaceous blanketed the entire basin.

凝灰岩充填着整个盆地。

A light - colored tuff used in hydraulic cement.

粗面凝灰岩一种用来生产硬水泥的淡色凝灰岩

mud-supported biomicrite

灰泥支撑的生物微晶灰岩

Characteristics of saprolites formed from crystalline rock and clasolite in humid climatic regions and their development process

温湿气候区结晶岩与碎屑岩腐岩特征及其发育过程