Trace element modeling of aqueous fluid - peridotite interaction in the mantle wedge of subduction zones

Article Abstract:

Different models were formulated to explain the contents of Island Arc Basalt (IAB) erupted at the volcanic front in arcs without significant sedimentary presence. The IAB are modeled as a two-component combination of depleted lherzolite and slab-sourced aqueous fluid that has contacted lherzolite in the wedge. The model features four steps of chemical processes, with each process described by an equation featuring an adjustable variable. Modeling of IAB compositions from oceanic environments revealed a generally lower level of fluid-wedge interaction, and thus a greater slab component in primite IAB.

Basalt, Trace analysis, Subduction zones (Geology), Subduction zones, Island arcs

---

Petrology and geochemistry of Camiguin Island, southern Philippines: insights to the source of adakites and other lavas in a complex arc setting

Article Abstract:

A study was conducted to analyze the petrology and geochemistry of Camiguin Island, Philippines. Sources of adakites and other lavas were examined. Results suggested that the most possible source of Camiguin and Central Mindanao Arc magmas is the mantle wedge metasomatized by dehydrated fluids from a subducted slab. Findings also showed that adakites from Mindanao are not pure slab melts but similar to Camiguin high-silica lavas that are products of assimilation and fractional crystallization processes.

Research, Natural history, Philippines, Lava, Magma, Petrology, Camiguin Island

---

Similar abstracts:

• Abstracts: Trace element modeling of aqueous fluid - peridotite interaction in the mantle wedge of subduction zones. Formation of a third volcanic chain in Kamchatka: generation of unusual subduction-related magmas
• Abstracts: Linking extinction to connectivity and habitat destruction in metapopulation models
• Abstracts: Richterite-bearing peridotites and MARID-type inclusions in lavas from North Eastern Morocco: mineralogy and D/H isotopic studies
• Abstracts: The meta-igneous granulite xenoliths from Kerguelen Archipelago: evidence of a continent nucleation in an oceanic setting
• Abstracts: Ninth Joint Conference on Applications of Air Pollution Meteorology. Some considerations on the thermostat hypothesis

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.