chert

Thus we can better understand the deformation of chert in a highly fluid form .

这样我们就能更好地理解燧石在高度流体状态时的变形情况。

The host rock conformably overlies a band of siliceous chert breccia .

含矿主岩整合地上覆于硅质燧石角砾石带之上。

The cardium sandstone is lithic , being composed of grains of chert , quartz , quartzite , silicified argillite , and other rock fragments .

卡迪砂岩是岩屑砂岩，由燧石，石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。

Exploring organic origin of Precambrian bedded chert in relation to hydrocarbon generation

试论前寒武系层状燧石岩的有机成因及其与油气生成的关系

Biogeochemical model and Simulation on the effect of Precambrian algae in the forming process of certain laminated chert

前寒武纪藻类对某些层纹状燧石形成作用的生物地球化学模式和模拟实验研究

The geomorphological characteristics and forming period of diamond & bearing chert conglomerate in central southern region of Shandong

山东中南部地区含金刚石燧石砾岩的地貌特征和形成时代

Investigation on alkali reactivity of chert in Nanjing Qixia carbonate

南京二叠系栖霞阶灰岩中燧石碱活性的探讨

Advances in chert research

硅岩研究的进展

Element Geochemistry and Depositional Setting of the Chert in Devonian , Nanning Area , Guangxi

广西南宁地区泥盆系硅质岩地球化学特征及沉积环境

Origins and environment types of chert in Western Zhejiang and southern Anhui from late Sinian to Early Cambrian

皖南浙西晚震旦世至早寒武世硅岩物源与环境类型初探

The sedimentary environment of the chert reflects the tectonic setting of the small oceanic basin in Late Jurassic .

硅质岩的形成环境反映了该陆缘小洋盆在晚侏罗世所处的构造背景。

Origin and Diagenesis Marking of Chert in Limestone of Taiyuan Group , Jiaozuo , Henan Province

河南焦作地区太原群灰岩中燧石的成因及成岩作用标志

Chert with good abrasion is the major content in conglomerate , and diamonds are contained in it generally .

砾岩主要砾石成分为燧石，磨圆度较好，普遍含金刚石。

Geochemical criteria of the Upper Sinian hydrothermal chert on the southeast continental margin of the Yangtze plate

扬子板块东南大陆边缘上震旦统热水成因硅质岩的地球化学标志

The organic carbon content in the chert samples is relatively high , ranging from 0.06 to 9.00 % and averaging 1.91 % .

硅岩有机碳含量较高，变化于0.06～9.00%，平均1.57%。

A variety of chert containing magnetite and hematite ; mined as a low-grade iron ore.

一种含磁铁矿和赤铁矿的燧石，作为一种低等的铁矿石被开采。

Permian Radiolarians , Chert and Basalt from the Nan Suture Zone , Northern Thailand

泰国北部难河构造带二叠纪放射虫、硅质岩和玄武岩

Suggesting that the chert has obvious hydrothermal sedimentation properties , while a terrestrial component of the accession . 5 .

表明研究区硅质岩具有明显的热水沉积成因属性，同时有陆源组分的加入。

A New Type of Primary Unicellular Microfossils from the Chert of the Gaoyuzhuang Formation in Jixian County , Tianjin

蓟县高于庄组燧石中原位保存的单细胞微体化石新类型

The origin of " chert breccia " in the bottom of Qingbaikou group in County yixian , Hebei Province

河北易县青白口群底部燧石角砾岩成因的探讨

The chert sequences in southeastern Yunnan as well as western and southern Guangxi indicate some branch marine basins of the Palaeo-Tethys .

滇东南、桂西和桂南的矽质岩则指示古特提斯多岛洋的分支海盆。

The non-reactive feature of Qixia chert result from its asphalt content , which restrictes the alkali-aggregate reaction .

这种燧石非活性特征是由于其含有沥青质之故，沥青质的存在抑制了碱-集料反应的进行。

If chert does not contain impurities and the age spectrum is very precise , the minimum apparent age in middle temperature may have geochronological implication .

当燧石纯度很高，加热阶段划分得很细时，马鞍形谱线中温区间最小视年龄具有某种年代学意义。

The stone artifacts made of chert , basalt and other rock consist of cotes , flakes , tools and debris .

以燧石、玄武岩等原料打制的标本包括石核、石片、工具和碎屑。

Radiolarian fossils from chert gravels of Triassic conglomerate in NW margin of the Tarim Basin and their geological significance

塔里木盆地西北缘三叠系硅岩砾石中的放射虫化石及其地质意义

Molecular paleontology in thermal chert in Laerma gold deposit shows that the organic precursors intimately associated with gold are marine bacteria and algae .

通过对拉尔玛金矿热水成因硅质岩中分子古生物学的研究，指出硅质岩中与金关系密切的生物母源为海生低等菌藻生物。

Microscopic studies of the kerogen from the chert samples show that the main components of the kerogen are organic fragments and microsome with weak anisotropy .

油浸显微镜下鉴定硅岩中的干酪根组成多为有机质碎片和微粒体，并显示微弱的各向异性。

Of anhedritite to determine gypsiferous formation ; using the difference in crystal degree of crystal dolomite , automorphic extent of dolomite and chert content etc.

应用结晶白云岩的结晶程度、白云石自形程度、燧石含量等的差异性质确定其层位归属；

The latter consisting of dark gray clastic limestone , chert beds , siliceous mudstone and massive reef and usually with graded bedding .

石灰岩建造常为黑色、灰黑色碎屑石灰岩、燧石层、粉砂质泥板岩和礁灰岩组成，常夹递变层理。

The uranium deposit of Silurian age in a certain area is controlled mainly by fracture and morphologically changing parts of uranium bearing siliceous limestone and chert beds .

某地区志留系中的铀矿床，主要受硅灰岩和硅岩含矿层形态变异部位和断裂构造控制。