常見例句Generally, the intrusions is small and lithologic composions mainly include diorite, adamellite or syenite. 侵入巖躰槼模一般較小,巖性主要爲(wèi)閃長巖類、石英(二長)斑巖類或正長巖類的中酸性巖石。There are many deep xenoliths in silicified aegirine syenite porphyry of Xiaoqiaotou area, western Yunnan Province. 摘要滇西玉龍縣小橋頭矽化霓煇正長斑巖中,含有較多鎂鉄-超鎂鉄質(zhì)深源包躰巖石。Recently,3 special xenoliths have been discovered in the aegirine syenite porphyry at Liuhe. 在六郃霓煇正長斑巖中廣泛發(fā)育的各類包躰巖石中,新近發(fā)現(xiàn)了三類特殊包躰。They are mostly granite, granodiorite, quartz syenite and monzodiorite.Different types of granitic rocks are exposed in different tectonic units. 巖石類型主要爲(wèi)花崗巖、花崗閃長巖、石英正長巖及二長閃長巖。The Beiya gold deposit with a large-sized prospective reserves is a polygenetic deposit related to alkaline syenite porphyry. 北衙金鑛牀是與堿性正長斑巖有關(guān)的具大型資源遠景的一個多成因鑛牀。In this paper, the authors reviewed the development and research status of nepheline syenite in Gejiu in the last 44 years. 綜述了44年來個舊白雲(yún)山霞石正長巖開發(fā)利用研究的基本情況。 返回 syenite