volcaniclastic

Dolomite and volcaniclastic rocks of Fengcheng formation are also good reservoirs .

风城组的白云岩及火山碎屑岩的分布部位也为良好的储层。

Peperite is a special kind of volcaniclastic rock formed by the intermingling of magma with wet sediments .

熔积岩是火山碎屑岩的一种特殊类型，由熔浆和未固结的湿沉积物两种组分掺杂混合而成。

The sedimentary characteristics reflect a rapid deposition from volcaniclastic debris flow to low density flow .

到低密度流的快速堆积性质。

THE GENETIC TYPES OF THE PALEOGENE ' VOLCANICLASTIC ROCK ' IN HUNCHUN & Deal with the problems of classification volcaniclastic rock

珲春煤盆地火山碎屑岩的成因类型&兼论火山碎屑岩的分类问题

Two lithofacies , volcanic explosion ( including explosion and effusion subfacies ) and volcaniclastic lithofacies can be distinguished .

火山岩可分为火山喷发相（包括火山爆发亚相和火山溢流亚相）及火山沉积相两个岩相带。

Research into the Permian and Triassic volcaniclastic turbidite of Nanpan River seg-a unique turbidite mode without submarine fan

南盘江断陷区二、三叠系的火山碎屑浊积岩&一种独特的无海底扇浊流沉积模式

The principal period of volcanic activity produced large volumes of mainly acid and basic volcanic rocks accompanied by volcaniclastic sediments which contain isolated coal seams .

火山活动的主震时期产生了大量的主酸性以及基性火山岩，并伴随着火山碎屑沉积物，且其中包含着分离的煤层。

The Group of Devonian project has Obtained radiolaria from 20 horizons of Volcaniclastic rocks in the Junggar Basin , Xinjiang .

泥盆系课题组，在准噶尔地区发现20余层含放射虫的火山碎屑岩，放射虫均产于被化石证明了的下、中、上泥盆统中。

Volcaniclastic reservoir is high porosity-low permeability vesicular reservoir , and its diagenesis is mainly packing action of vacuole and fracture .

火山碎屑岩储层的成岩作用类型主要为气孔及裂缝的充填作用，为气孔状高孔低渗储层。

Petrological characteristics of the sedimentary volcaniclastic rocks of the fossil hill formation ( eocene ) in King George island , west Antarctica

南极乔治王岛始新统化石山组沉积火山碎屑岩特征

Preliminary study on relationship between volcaniclastic turbidites and gold deposits of the Xiajiang Group of Neoproterozoic Qingbaikouan in southeastern Guizhou Province

黔东南新元古界青白口系下江群火山碎屑浊流沉积与金矿关系的初步研究

A Study of Modulated Structures and Complex Structures in Natural Alkali Feldspars :ⅳ . Studies on Complex Structures of Alkali Feldspars of Volcaniclastic Rocks in the Northeast Part of Jiangxi Province

自然界碱性长石调制结构及复结构的研究四、赣东北地区火山碎屑岩中

The formation has the character of a volcaniclastic flyschoid sequence deposited on an active continental margin where the sedimentation was accompanied by only a weak magmatic activity .

群系有着火山碎屑类复理石层序特征，此层序沉积于活动大陆边缘，在那里沉积酌只会遇到弱岩浆活动。

It is though that ore-forming materials such as sulfur , arsenic and gold in Jinya gold mining must come from underlying basic rock and basic volcaniclastic rock Late Permian in age .

因此，有根据认为，金牙金矿床的硫砷金等成矿物质主要来自下伏晚二叠世基性岩和基性火山碎屑沉积岩。

Both the interlayered volcaniclastic rock and lava at Hannah Point and the olivine basalt at Cape Shirreff have the same Middle Cretaceous ages .

汉那角剖面的火山碎屑岩和熔岩及史莱夫角的橄榄玄武岩均具有中白垩世的年龄。

The rock types include rhyolite , dacite and sedimentary volcaniclastic rocks , among which the lava tuff breccia was newly discovered in the 1 ∶ 50 000 region .

岩石类型为流纹岩、英安岩和沉火山碎屑岩，其中的熔结角砾凝灰岩是本次1∶5万区调中的新发现。

In China , the predominant country rocks of gold deposits are the Proterozoic and Palaeozoic metamorphic rocks , but the young volcanic rocks and volcaniclastic rocks are put in the first place on abroad .

国内的金矿围岩以太古界和元古界的变质岩系占优势；国外则以年轻的火山岩、火山碎屑岩占首位。

The polymictic breccia in the Qianshan lead-zinc ore district of Anxi County is a suit of volcaniclastic rock , sedimentary pyroclastic rock and pyroclastic sedimentary rock .

安溪铅山铅锌矿区复成分角砾岩为一套火山碎屑岩-沉火山碎屑岩-火山碎屑沉积岩。

The Minle Cu deposit is distributed in the middle Triassic calc - alkalic , alkalic volcaniclastic rock , lava and subvolcanic rock ( dacite porphyry ) .

民乐铜矿产于中三叠统钙碱性、碱性系列火山碎屑岩、熔岩、次火山岩（英安斑岩）中。

The examination of geology , geochemistry and fluid inclusions from the gold deposit has disclosed that the pseudoconformity between the volcaniclastic rocks and Dachang quartzite occurs as the main accommodation spaces .

根据对矿床地质、地球化学、流体包裹体等多方面研究认为，火山碎屑岩与大厂石英岩之间的假整合面是最主要的容矿空间；

The basic , intermediate , acidic lava-and associated volcaniclastic rock are of widespread occurence , which are dominanted by tholeiite , alkali-lime and alkaline volcanic series , and some ultra-alkaline volcanic rock .

基性、中性、酸性熔岩和火山碎屑岩均有，以拉斑玄武岩、钙碱性火山岩和碱性火山岩系列为主，极少量过碱性火山岩。