The petrogenesis of subducted-related magmas is complex problem, and hs been subject of controversy and widely discussed among petrologists. involving multi sources and multi processes. The source of arc magmas includes upper mantle with either MORB-like or OIB-like, the sucducted slab which consists of an oceanic basaltic crust and possibly sediments, icnluding material derived either through …
Tiga mata air paans yang telah di temukan di daerah Mempawah, Kalimantan Barat merupakan air bikarbonat netral dengan tingkat salinitas yang relatif sangat rendah apabila di maksudkan sebagai fluida panas bumi, terutama apabila melihat kandungan klorida