ce ippin r-ele n, P ge ce il accompanied by leaching of Ca and Na first and of Fe and Mn thereafter during the chemical weathering cks ar weath al., 19 (Selvaraj and Chen, 2006; Liu et al., 2008). However, few studies have been conducted on weathering products in the Philippine archipelago, where th...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.624.8907 http://mgg.tongji.edu.cn/space/zhifei/files/2009/11/liu-et-al.-2009-appl-geochem.pdf |
| Summary: | ce ippin r-ele n, P ge ce il accompanied by leaching of Ca and Na first and of Fe and Mn thereafter during the chemical weathering cks ar weath al., 19 (Selvaraj and Chen, 2006; Liu et al., 2008). However, few studies have been conducted on weathering products in the Philippine archipelago, where the weathering of volcanic rocks could be par-ticularly efficient, as shown in studies of large basaltic provinces on the Deccan Traps (Dessert et al., 2001) and in NE Iceland (Eiriksdot-tir et al., 2008). As the largest island in the Philippines, Luzon is an intermediate-basaltic volcanic and tectonically active island char-Philippine Sea Plate is accommodated across two major subduction zones, the east-dipping Manila Trench in the eastern South China Sea and the west-dipping East Luzon Trough in the western Pacific Ocean (Fig. 1). The island is characterized by active intra-arc strike-slip faults, active volcanism, and high seismic activity. Cretaceous to Quaternary sedimentary and extrusive rocks and Cenozoic inter-mediate intrusive rocks abound throughout the island (Commis-sion for the Geological Map of the World, 1975) (Fig. 2A). Sedimentary rocks usually contain andesitic–basaltic pyroclastics and lavas. Plio-Quaternary volcanic deposits, mostly andesites and basalts with associated dacites and rhyodacites, mainly occur |
|---|