1) meta-basic rock
变质基性岩
1.
The deposit is hosted in meta-basic rocks and located in the Sushui complex.
文章对中条山南段铜矿新类型王窑头矿区进行了分析,认为其容矿岩石为变质基性岩,产在太古宙涑水杂岩中。
2) metamorphic basic volcanic rock
变质基性火山岩
1.
In the second formation of the Langshan group in the Dongshengmiao polymetallic pyrite deposit, metamorphic basic volcanic rocks have been discovered,except quartz keratophyre, with a blastoporphyritic texture containing albite and oligoclase and minor, pyroxen and hornblende.
东升庙硫－多金属矿床狼山群二组含矿地层中，除已发现的变质石英角斑岩之外，又找到具有变余斑状结构（斑晶主要为钠质斜长石，另有少量辉石和角闪石）的变质基性火山岩和变质凝灰岩夹层以及火山岩屑与晶屑。
3) High pressure metabasites
高压基性变质岩
4) orthometabasite
正变质基性岩
5) meta mafic ultramafic rocks
变质基性-超基性岩
6) metabasite
变基性岩
1.
The U-Pb trace zircon isotope age (1850± 2 Ma) of metabasites from the Hengshangrey gneiss is interpreted as the formation age of metabasite dikes during the Luliang period.
恒山灰色片麻岩中变基性岩的微量锆石U－Pb方法测定结果为：（1850±2）Ma，应代表吕梁期变基性岩墙（脉）的形成时代。
2.
The metabasites in the Archean Yishui complex of Shandong Province were dated for the first time by the Sm--Nd whole rock isochron method at2997 Ma, which confirms the existence of Middle Archean granulite faciessupercrust rocks in the Tancheng--Lujiang fault of Central Shandong.
在山东太古宙沂水杂岩的变基性岩类中首次获得的Sm-Nd全岩等时线同位素年龄为2997Ma,证实了山东中部的郯庐断裂带中有中太古代麻粒岩相表壳岩存在。
补充资料：基性岩
| 基性岩 basic rock 火成岩的一类。二氧化硅含量较低，为45％～52％。主要由辉石、基性斜长石组成，不含石英或含量极少。深灰色，比重较大 。常见的基性深成岩为辉长岩，浅成岩为辉绿岩，喷出岩为玄武岩。其中深成岩和浅成岩常成岩株、岩盆、岩床、岩脉等小侵入体产出，喷出岩常形成较大的岩流和岩被。铁、钛、铜、镍等金属矿产在成因上往往与之有关。质地均匀、无裂隙的新鲜岩石可作石材，细粒、色深者尤佳。 |
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