1) Kaiyuan Group
开原岩群
1.
Based on progress made in the study on the chronostratigraphy of the “Qinghezhen Group” or “Kaiyuan Group”, such as SHRIMP ages of 2497±27 Ma and 2522±17 Ma obtained from the Beidagou and Wujiapuzi Formations in the Shangfeidi section, SHRIMP age of 247.
本文根据“清河镇群”(或“开原岩群”)年代地层学研究新进展,即在上肥地剖面原划入北大沟组、吴家堡子组,尖山子水库大坝原划入北大沟组等地层中获得的岩浆结晶锆石(SHRIMP)年龄2497±27Ma、2522±17Ma,250±5Ma;在“白砬子组”(或“照北山岩组”)之建组剖面东杨木林子的大理岩(结晶灰岩)中获得震旦纪之微古植物化石——Stictosphaeridiumtortutosum,Synsphaeridiumsp。
2) Yunkai Group complex
云开岩群
1.
Meso-Neoproterozoic Yunkai Group complex is lithologically composed of the middle-low grade metamorphic series in southeastern Guangxi, which formed a series of zones of progressive metamorphism from greenschist facies to amphibolite facies.
桂东南中新元古界云开岩群是一套中浅变质岩系,并形成一系列绿片岩相-角闪岩相的递增变质带,通过对云开岩群角闪岩相变质带(十字石-蓝晶石带)中斜长角闪岩变质作用的PT轨迹的系统研究显示,其包括了由早期绿片岩相变质阶段(M1)→峰期角闪岩相变质阶段(M2)→近等温降压变质阶段(M3)→近等压降温变质阶段(M4)→晚期绿片岩相退变质阶段(M5)五个阶段的顺时针PT演化轨迹,其地质动力学过程属于典型的板块俯冲碰撞→抬升模式,表明云开地块北缘造山带的地质构造演化经历了俯冲碰撞及碰撞后的快速抬升过程。
3) rock group
岩群
1.
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.
下二台岩群 ,系下二台地区的奥陶纪变质岩系，遭受强烈的韧－脆性变形的改造，并在后期叠加了热接触变质及动力变质作用。
4) 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。
5) 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。
6) rock suite and rock group
岩群和岩组
补充资料：开原
1.指开国。 2.见"开源"。
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