1.a mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium.
一种含有二氧化钛的矿物，呈晶体状，见于变质岩和火成岩中，是钛的主要来源。
2.A weakly magnetic black mineral found in metamorphic and plutonic rocks; an iron titanium oxide in crystalline form; a source of titanium .
一种具有弱磁性的黑色矿物，见于变质岩和火成岩中，晶体状铁。
3.A coarse-grained, plutonic or intrusive igneous rock of felsic composition having large crystals of quartz, feldspar and mica.
一种粗粒的，深成的或侵入的长英质成分的火成岩，含石英、长石和云母的粗大晶体。
4.It provides collection of images of minerals in thin sections, and microtextures of plutonic , volcanic and metamorphic rocks.
网站提供了大量的矿物薄截面、火成岩、火山岩以及变质岩显微质地的图片。
5.This belt is bounded on the north by a group of large plutonic masses.
该带的北部被一群大规模的深成岩体所限。
6.The geologic, geochemical characteristics of the Archean metamorphic plutonic intrusive of the Helong area, Jilin province
和龙地区太古宙变质深成侵入体的地质地球化学特征
7.upper palaeozoic volcano-plutonic belts which unconformably overly the lower and middle palaeozoic fold belts;
高古生代火山岩区域的极度不规则中低古生代褶皱带；
8.Classification and Formational Environment of Early Cretaceous Plutonic Masses in Yongtai Area
永泰地区早白垩世深成岩体的划分及形成环境