lithic tuff

Study on optimization of the technics about using the vitric tuff to synthesize zeolite A;

玻屑凝灰岩合成A型沸石工艺优化研究

The vitric tuff of Linli in Hunan may become a qualified synthetic material of zeolite molecular sieve after it is pretreated adequate1y.

经适当预处理，湖南临澧玻屑凝灰岩可成为沸石分子筛的合成原料。

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。

The deposit is controlled by fanlt and stratigraphy,principly bounded to the sheared zone which formed in a sequence of fine lithic tufls and carbonaceous shale in the contact zone between the tuffaceous and the andesitic sequence within Nafirdeib series.

该矿床受构造及地层控制，主要赋存于Ｎａｆｉｒｄｅｉｂ群安山质岩组和凝灰质岩组接触带内一套细粒岩屑凝灰岩和碳质页岩中发育的构造剪切带里。

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。

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。

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

pellet-bioclastic grainstone

球粒生物屑粒状灰岩

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

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

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

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

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。

STUDY OF SEDIMENTARY FACIES OF BIOCLASTIC LIMESTONE MEMBER, CARBONIFEROUS, TARIM BASIN

塔里木盆地石炭系生屑灰岩段沉积相研究

subfeldspathic lithic arenite

亚长石质岩屑砂屑岩

Optimal Description of Lithology by Statistical Methods of Gray Level for Cuttings;

基于灰度统计特征的岩屑岩性最优描述方法研究

The main kinds of rocks include carbonate rocks, tuffite, siliceous rocks and quartz sand-stone.

主要岩石类型包括碳酸盐岩、沈积凝灰岩、矽质岩和石英砂岩。