syenite是什么意思

2024-02-13 06:30:16

syenite

美[saɪəˌnaɪt] 英[saɪəˌnaɪt]

n. 黑花岗石

形容词：syenitic

Generally, the intrusions is small and lithologic composions mainly include diorite, adamellite or syenite. 侵入岩体规模一般较小，岩性主要为闪长岩类、石英（二长）斑岩类或正长岩类的中酸性岩石。
There are many deep xenoliths in silicified aegirine syenite porphyry of Xiaoqiaotou area, western Yunnan Province. 摘要滇西玉龙县小桥头硅化霓辉正长斑岩中，含有较多镁铁-超镁铁质深源包体岩石。
Recently,3 special xenoliths have been discovered in the aegirine syenite porphyry at Liuhe. 在六合霓辉正长斑岩中广泛发育的各类包体岩石中,新近发现了三类特殊包体。
They are mostly granite, granodiorite, quartz syenite and monzodiorite.Different types of granitic rocks are exposed in different tectonic units. 岩石类型主要为花岗岩、花岗闪长岩、石英正长岩及二长闪长岩。
The Beiya gold deposit with a large-sized prospective reserves is a polygenetic deposit related to alkaline syenite porphyry. 北衙金矿床是与碱性正长斑岩有关的具大型资源远景的一个多成因矿床。
In this paper, the authors reviewed the development and research status of nepheline syenite in Gejiu in the last 44 years. 综述了44年来个旧白云山霞石正长岩开发利用研究的基本情况。