Petrographic features of segment ii of the jinchuan intrusion, gansu, and its fractional crystallization
文献类型：期刊论文
| 作者 | Li ShiBin1,2; Song XieYan1; Hu RuiHong1; Chen LieMeng1,2; Nie XiaoYong1,2 |
| 刊名 | Acta petrologica sinica
 |
| 出版日期 | 2007-10-01 |
| 卷号 | 23期号:10页码:2553-2560 |
| 关键词 | Jinchuan cu-ni sulfide deposit Segment ii Petrographic features Phase diagram Fractional crystallization |
| ISSN号 | 1000-0569 |
| 通讯作者 | Li shibin(lishibin@mails.gucas.ac.cn) |
| 英文摘要 | Segment ii of the jinchuan intrusion is composed mainly of lherzolite and sulfide peridotite. fine- and medium-grained harzburgite occurs as a "roof pendant" at the top of the intrusion and shows a short-distance gradational relationship with the medium-grained lherzolite, reflecting the feature of multiple injections of magma or "crystal mush". based on the petrographic relationships between the minerals of various rock facies, combined an analysis of the thermodynamics phase diagrams, the authors think that the crystallization sequence of the rock-forming minerals in segment 11 is spinel, olivine, orthopyroxene, clinoyroxene and plagioclase. reaction between olivine and parent magma caused olivine crystals to become rounded. in addition, the grain size of cumulus olivine in the sulfide peridotite and sulfide harzburgite is obviously smaller than that of olivine in the sulfide lherzolite, implying that abundant sulfide ore pulp had gathered at the bottom of the deep magma chamber before the "crystal mush" was intruded into the shallow magma chamber. |
| WOS关键词 | CU SULFIDE DEPOSIT ; CHINA ; GENESIS |
| WOS研究方向 | Geology |
| WOS类目 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000254139000023 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380098 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li ShiBin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li ShiBin,Song XieYan,Hu RuiHong,et al. Petrographic features of segment ii of the jinchuan intrusion, gansu, and its fractional crystallization[J]. Acta petrologica sinica,2007,23(10):2553-2560. |
| APA | Li ShiBin,Song XieYan,Hu RuiHong,Chen LieMeng,&Nie XiaoYong.(2007).Petrographic features of segment ii of the jinchuan intrusion, gansu, and its fractional crystallization.Acta petrologica sinica,23(10),2553-2560. |
| MLA | Li ShiBin,et al."Petrographic features of segment ii of the jinchuan intrusion, gansu, and its fractional crystallization".Acta petrologica sinica 23.10(2007):2553-2560. |
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来源：中国科学院大学
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