petrographic

petrographic studies suggest that the mineral assemblage is composed of olivine, clinopyroxene and plagioclase, which is consistent with common mineral assemblage of a characteristic alkali basalt.

岩石学特征表明，南海新生代玄武岩的矿物组合为橄榄石、单斜辉石、斜长石，与特征的碱性玄武岩的矿物组合一致。

On the basis of study on the petrographic characteristics of coal 2-2 in Shenmu Coalfield, three types of peat swamp are recognized, i. e.

在研究神木煤田2－2煤层煤岩特征的基础上，划分了三种泥炭沼泽类型，即开阔水体草本沼泽、陆地森林沼泽和潮湿森林沼泽。

Through accurate description and dissection of deltaic front outcrops, 11 petrographic facies types are established.

通过对三角洲前缘露头的精细描述和解剖, 建立了研究区11种岩石相类型.

liquidus and immiscibility temperatures in soda-lime-silica glasses were determined by petrographic microscope and tem respectively.

本文分别采用溶胶凝胶法和常规法制备钠钙硅玻璃，液相温度和不混溶上限温度用光学显微镜和透射电镜进行测定。

The petrographic characters and environmental analysis of the Cretaceous-Tertia-ry Boundary strata at the Nanxiong Basin Guangdong

广东南雄盆地白垩-第三系界线地层岩性特征及环境分析

Effect of petrographic composition on coal spontaneous combustion has been studied in this report.

本文研究煤岩成分对煤炭自燃的影响,认为镜质组自燃,壳质组和惰性组不易自燃.

Functions of Kauri in Antirust Paint in Light of Petrographic Analysis

从岩相分析看栲胶在带锈涂料中的作用

Studies on the properties of the bituminous coals and their petrographic ingredients by the method of "heavy liquid" separation

用重液分离方法研究烟煤及其岩相成分的性质

By means of SEM 、 EDAX and OM, the petrographic structure and microscopic chemical composition of cement clinker have been researched by adding rare-earth lean ore.

采用SEM、EDAX、OM等分析测试方法，研究了稀土贫矿掺加条件下，水泥熟料的岩相结构及其微区化学组成。

It may be subdivided into three members based on the petrographic characteristics.

根据岩石特征划分三个岩性段。

the characteristics of petrographic constituents in anthracite fines and their influence on briquetting properties

无烟粉煤的岩相组成对成型特性的影响

Petrography and mineral chemistry of100 meteorites collected from the Grove Mountains, Antarctica, were studied and their chemical-petrographic types were assigned.

本文主要报道了南极格罗夫山新回收的100块陨石的岩石学和矿物化学特征。

Rock thin section analysis and X-ray diffraction analysis show that different sedimentary microfacies have different petrographic properties. The experiment analysis also slows that same charateristics in reservoir sensitivity also exist.

岩石薄片分析及黏土矿物X衍射分析表明，各沉积微相带具有不同的岩石学特征，储集层敏感性分析也表明不同沉积微相中的储集层其敏感性有所差异。

The chemical composition petrographic analysis and dispersing property of kinds of bauxitic clay are compared.

对比研究了几种铝矾土的化学组成、相组成和分散性能.

Circum pacific calc alkaline petrographic province ultrabasic rock

环太平洋钙碱性岩石区

Petrographic and geochemical characteristics of the sinian-ordovician dolomites in northern Tarim Basin

塔里木盆地北部震旦系至奥陶系白云岩的岩石学及地球化学特征

The results reveal tha the added rare-earth lean ore is helpful to improve the petrographic structure of cement clinker and increase the solid solution of Al2O3 、 Fe2O3 in alite;

结果表明，掺入稀土贫矿有利于改善水泥熟料的岩相结构，同时增加了A矿中Al2O3、Fe2O3的固溶量；

These findings are significant in understanding of the characteristics of coal petrographic constituents and and enr.

煤岩组分和煤变质程度是影响煤层生储气能力的主控因素.