火山岩

The Shahejie Formation of the 5th structure in Napu sag is buried deeply.

摘要南堡凹陷5号构造沙河街组地层埋藏深较大，由火山岩与沉积岩构成地层骨架。

The metamorphic grades of Minleh and Changma areas are prehnite-pumpellyite and prehnite-actinolite facies, respectively.

民乐与昌马地变质火山岩，变质葡萄石-绿纤石相和葡萄石-阳起石相。

The deformation belts are formed by Late Carboniferous rocks, mainly mylonitization volcanic rocks and volcanic clastic sedimentary rocks.

变形带由下石炭统干墩组组成，一套糜棱岩化火山岩、火山碎屑沉积岩。

Kezlag rock formation whose mother rocks are greywacke is basinal deposit, Karakez rock formation's protolith is island arc volcanics.

克孜拉格岩组原岩杂砂岩，属盆地沉积；卡拉格兹岩组原岩岛弧火山岩。

We do the thermoluminescence research systemly for deep volcanic rocks section, this will possibly demarcate eruptible gyration and evolvment character.

4、对巨厚的火山岩剖面进行系统的热释光研究,可能标定其喷发旋回和演化特。

Regional volcanic strata are the source of placer gold and laterization process is the main stage of formation of placer gold.

火山岩地层是砂金的矿源，地表赤红壤化可能是砂金形成的主要阶段。

The volcanogenic deposits hosted in differential yolcanic rock series and cogenetic deposits hosted in undifferential baste volcanic rock series have been divided and studied in this paper.

笔者通过研究，出了异火山岩系中的火山成因矿床和未异基性火山岩系中的共生矿床，认前者的金属聚集与岩浆异有密切关系。

Xiaertai rock group,a set of metamorphic rock system in Xiaertai area,has experienced strong ductilebrittle deformation and then thermal contact metamorphism and dynamometamorphism in the late stage.

经原岩恢复可将下二台岩群三个岩组：盘岭岩组，黄顶子岩组及烧锅屯岩组，其原岩建造火山岩建造、碳酸盐岩建造及碎屑岩建造。

The kamafugite is a rare type of ultra-potassic rocks, and a rock series contained generally that rock types of alnoite, olivine-melilitite, mafurite, katungite and wugantite and so on.

摘要钾霞橄黄长岩是一种非常稀少的超钾质火山岩，也是一个岩石系列，包括黄长煌斑岩、橄榄石黄长岩、白橄黄长岩、橄辉钾霞岩和乌干达岩等多种岩石类型。