Fluid-rock interaction during subsolidus microtextural development of alkali granite as exemplified by the Saertielieke pluton, Ulungur of the northern Xinjiang, China
文献类型：期刊论文
| 作者 | Liu, W |
| 刊名 | CHEMICAL GEOLOGY
 |
| 出版日期 | 2002-02-15 |
| 卷号 | 182期号:2-4页码:473-482 |
| 关键词 | oxygen isotope perthitic alkali feldspar secondary arfvedsonite deformation of quartz alkali granite |
| ISSN号 | 0009-2541 |
| 英文摘要 | Three lithological Groups I (medium-grained, with magmatogenic arfvedsonite), II (medium-grained, with secondary arfvedsonite) and III (fine-grained, with magmatogenic arfvedsonite) are identified in the Saertielieke alkali granite pluton, Ulungur of the northern Xinjiang, China. A weak negative correlation between the 8 1 80 values of alkali feldspar and quartz separates from each group, and the distinctly lower 6 18 0 values of alkali feldspar separates from Groups I and II than those from Group III are interpreted in terms of superimposed closed-system and open-system isotope exchange. A small amount of locally exsolved magmatic fluid is involved in the development of the perthitic texture in alkali feldspar at similar to 400 degreesC that results in a volume increase and, hence, causes quartz deformation. The microtextural changes promote the closed-system oxygen isotope exchange between quartz and alkali feldspar that causes a dispersion in the quartz 8180 values. However, the distinctly lower 5180 values of alkali feldspar and secondary arfvedsonite coupled with their microtextural characteristics indicate that meteoric-derived water plays an important role in the further development of alkali feldspar exsolution texture at T < 400 degreesC and directly causes secondary arfvedsonite formation. The estimated relative exchange rates k(Quartz)/k(Feldspar)/k(Arfvedsonite) of similar to 10/100/1 for Groups I and III, and similar to 10/100/100 for Group II suggest that alkali feldspar, quartz, and secondary arfvedsonite have exchanged with meteoric-derived water mainly via dissolution-reprecipitation, whereas magmatogenic arfvedsonite has exchanged via diffusion. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000174188000023 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77483]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu, W |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Res Ctr Mineral Resources Explorat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, W. Fluid-rock interaction during subsolidus microtextural development of alkali granite as exemplified by the Saertielieke pluton, Ulungur of the northern Xinjiang, China[J]. CHEMICAL GEOLOGY,2002,182(2-4):473-482. |
| APA | Liu, W.(2002).Fluid-rock interaction during subsolidus microtextural development of alkali granite as exemplified by the Saertielieke pluton, Ulungur of the northern Xinjiang, China.CHEMICAL GEOLOGY,182(2-4),473-482. |
| MLA | Liu, W."Fluid-rock interaction during subsolidus microtextural development of alkali granite as exemplified by the Saertielieke pluton, Ulungur of the northern Xinjiang, China".CHEMICAL GEOLOGY 182.2-4(2002):473-482. |
入库方式： OAI收割
来源：地质与地球物理研究所
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