The Formation Environment of K-feldspar Porphyritic Granite from E-Mount, Yunnan
- https://doi.org/10.2991/gmee-15.2015.18How to use a DOI?
- component; formation environment; K-feldspar; granite; E-Mount; LA- ICP-MS U-Pb
E-mount granite Pluton is located at the southwest part of Yangtze plate . To understand the formation environment of K-feldspar porphyritic granite from E-Mount approaches such as major and trace element analysis and zircon LA- ICP-MS U-Pb dating are used. According to the tests and analysis results, Geochemical shows major elements of w(SiO2) 64.7%~77.41% (> 67%), and A/CNK 0.889~1.234. The zircon age of K-feldspar porphyritic granite is 838.8±6Ma. Finally, infer the forming environment of K-feldspar porphyritic granite that magmatic activity should have been started since 838 Ma, related to post-collisional lithospheric delamination and upwelling of hot asthenosphere, and the tectonic environment of depressurization and warming.
- © 2015, the Authors. Published by Atlantis Press.
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Cite this article
TY - CONF AU - Jin Hu AU - Shitao Zhang AU - Ying Zhang PY - 2015/12 DA - 2015/12 TI - The Formation Environment of K-feldspar Porphyritic Granite from E-Mount, Yunnan BT - Proceedings of the 2nd International Conference on Green Materials and Environmental Engineering PB - Atlantis Press SP - 63 EP - 65 SN - 2352-5401 UR - https://doi.org/10.2991/gmee-15.2015.18 DO - https://doi.org/10.2991/gmee-15.2015.18 ID - Hu2015/12 ER -