|
Sericitization-silicification of Chae Hom volcanicsat Lampang in northern Thailand |
|---|---|
| รหัสดีโอไอ | |
| Creator | Patcharin Kosuwan Jundee*, Burapha Phajuy, and Yuenyong Panjasawatwong |
| Title | Sericitization-silicification of Chae Hom volcanicsat Lampang in northern Thailand |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2562 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 41 |
| Journal No. | 6 |
| Page no. | 1233-1240 |
| Keyword | Chae Hom volcanics, transitional rhyolite to trachyandesite, calc-alkalic rocks, silicification, sericitization, illite |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The volcanic rocks of the Chae Hom area in Lampang, northern Thailand were investigated. Petrographic andgeochemical analyses were performed to comprehend the alterations. The volcanic rocks in this study were co-magmatic andchemically transitional rhyolite to trachyandesite with calc-alkalic affinity. Their colors were highly variable due to two mainalteration processes that included silicification and sericitization. The silicification process yields abundant quartz, whereas thesericitization yields abundant sericite and clay minerals. The sericite and clay minerals are most likely to be illite. The silicafication process occurred after the sericitization process. Based on our petrochemical analysis, the Chae Hom volcanic rocks areconsidered to be of calc-alkaline affinity and post-collisional magmatic suite. |
