Discovery of the basaltic andesite-high-k basaltic andesite-trachyandesite association in the yuximolegai daban, west tianshan and its geological significance. | |
Luo Yong1,2; Niu HeCai1; Shan Qiang1; Zhang Bin3; Zhou ChangPing3; Yang WuBin1,2; Yu XueYuan1 | |
刊名 | Acta petrologica sinica
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2009-04-01 | |
卷号 | 25期号:4页码:934-943 |
关键词 | Yuximolegai daban Calc-alkaline basaltic andesite High-k calc-alkaline basaltic andesite Trachyandesite Late carboniferous |
ISSN号 | 1000-0569 |
通讯作者 | Luo yong() |
英文摘要 | Within the yuximolegai daban of eastern awulale, west tianshan, the dahalajunshan formation is mainly composed of andesitic (trachyandesitic)-dacitic(trachytic-trachydacitic) lavas and volcaniclastic rocks. based on the petro-geochemical features, an association of calc-alkaline basaltic andesite-high-k calc-alkaline basaltic andesite-trachyandesite (shoshonite series) has been recognized from the upper part of volcanic rocks in the dahalaiunshan formation. the trace element characteristics show that three kinds of volcanic rocks were formed in the island arc environment. the generation of the calc-alkaline basaltic andesite was related to the slab subduction, while the high-k calc-alkaline basaltic andesite and trachyandesite were related to the asthenospheric upwelling induced by the subducted slab break off. the existence of this association implies that the tectonic system has been changed from compression to extension during late carboniferous due to the the subducted slab break off. this association is quite similar to those related to the cu-au mineralization in the world,for instance, that in papua new guinea, indicating that the late carboniferous has a better cu-au ore-forming prospect in this region. |
WOS关键词 | CARBONIFEROUS VOLCANIC-ROCKS ; GOLD-COPPER MINERALIZATION ; CU-AU ASSOCIATION ; CALC-ALKALINE ; POSTCOLLISIONAL TRANSITION ; CATAMARCA PROVINCE ; ELEMENT RATIOS ; SOUTHERN ALPS ; LA ALUMBRERA ; CONSTRAINTS |
WOS研究方向 | Geology |
WOS类目 | Geology |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000265945600017 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2399475 |
专题 | 中国科学院大学 |
通讯作者 | Luo Yong |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Xinjiang Bur Geol & Mineral Resource Explorat, Geol Survey Team 7, Wusu 833000, Peoples R China |
推荐引用方式 GB/T 7714 | Luo Yong,Niu HeCai,Shan Qiang,et al. Discovery of the basaltic andesite-high-k basaltic andesite-trachyandesite association in the yuximolegai daban, west tianshan and its geological significance.[J]. Acta petrologica sinica,2009,25(4):934-943. |
APA | Luo Yong.,Niu HeCai.,Shan Qiang.,Zhang Bin.,Zhou ChangPing.,...&Yu XueYuan.(2009).Discovery of the basaltic andesite-high-k basaltic andesite-trachyandesite association in the yuximolegai daban, west tianshan and its geological significance..Acta petrologica sinica,25(4),934-943. |
MLA | Luo Yong,et al."Discovery of the basaltic andesite-high-k basaltic andesite-trachyandesite association in the yuximolegai daban, west tianshan and its geological significance.".Acta petrologica sinica 25.4(2009):934-943. |
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