1) protolith
原岩
1.
Petrology, geochemistry and protoliths of the Mengjiatun Formation complex in the Xintai area, western Shandong, China;
鲁西新泰地区孟家屯岩组岩石学、地球化学及原岩特征
2.
The Protolith and Ultrahigh-Pressure Metamorphism of Maowu Mafic-Ultramafic Rock Block in Dabieshan Mountains;
大别山毛屋镁铁－超镁铁岩块的原岩与超高压变质作用
3.
On the basis of geochemical information by REE geochemical characteristics, the depositional environment of the metamorphic protolith, the changing law of REE in metallomorphic stage and migrating law of the metamorphic material as well as metamorphic setting are studied in this paper.
本文主要从稀土元素的地球化学特征所反映的地球化学信息 ,研究变质岩原岩的沉积环境 ,变质阶段稀土元素的变化规律 ,成矿物质的迁移规律 ,变质环境等。
2) original rock
原岩
1.
The original rock of Laolingou garnet deposit is a siltpelite and rich in iron The garnet deposit was formed by a series of metamorphic reactions, which has been undergone low to high amphibolite facies P,T condition.
老林沟石榴石矿的原岩为富铁粉砂质泥岩 ,经区域动力热流变质作用 ,在低角闪岩相至高角闪岩相的P、T 条件下 ,通过一系列变质反应形成。
2.
According to the rock body structure, attitude, rock type, chemical component, micro characteristic, and the ore body attitude, the spatial relationship of the ore body and all kinds of rocks, lithology, etc, it can be concluded that ore body is oval column lean to east-north, and the original rock is the gabbro.
通过对含矿岩体结构、产状、岩石类型、化学成分、微观特征,矿体产状、矿体与各类岩石的空间关系,矿石岩性观察研究,认为含矿岩体空间形态为向北东倾的椭圆柱形,原岩为辉长岩、成岩过程中物质成分发生了充分的分异富集,分异作用主要是重力分异、次为结晶分异;成岩后又经历了“角闪岩相→榴闪岩相→绿片岩相”的变质过程,三次变质作用均有金红石形成、第二次是主要成矿作用。
3) primary magma rock
原生岩浆岩
4) parent rock
母岩;原生岩
6) primary rock stress
原岩应力
1.
Way of stress reliving was adopted in primary rock stresses testing and calculating in the level with the depth of -408,-500 and -600 meters in Qidong coal mine.
采用应力解除法在祁东矿 - 4 0 8、- 5 0 0和 - 6 0 0三个水平进行了原岩应力测试及计算 ,确定了祁东井田主应力的大小和方向以及三个主应力随深度的变化关系 :祁东煤矿的地应力场以水平构造应力为主 ,最大主应力方向为北东向到近于东西向 ;中间主应力为垂直应力 ,垂直应力接近于上覆岩层的重量 ;最大主应力梯度值为 0 。
补充资料：原岩年龄
分子式：
CAS号：
性质：指用同位素方法测得的岩石年龄，是其真实的形成年龄。表明岩浆岩、沉积岩、变质岩自形成后一直保持着同位素封闭体系。
CAS号：
性质：指用同位素方法测得的岩石年龄，是其真实的形成年龄。表明岩浆岩、沉积岩、变质岩自形成后一直保持着同位素封闭体系。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条