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07. Department of Science and Technology - Philippine Institute of Volcanology and Seismology (DOST - PHIVOLCS)

Permanent URI for this communityhttps://repository.unesco.gov.ph/handle/123456789/30

Department of Science and Technology - Philippine Institute of Volcanology and Seismology (DOST - PHIVOLCS) - Philippines - contributions to address the Ocean Decade Challenges

Philippine Institute of Volcanology and Seismology (PHIVOLCS)
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) is a service institute of the Department of Science and Technology (DOST) that is principally mandated to mitigate disasters that may arise from volcanic eruptions, earthquakes, tsunami and other related geotectonic phenomena.

Vision
A leading global science and technology institution of empowered men and women helping develop communities safe from and resilient to volcanic eruptions, earthquakes, tsunamis and other related hazards
Mission
We provide timely, quality and socially-inclusive information and services for warning, disaster preparedness and mitigation. This we do through the development and application of technologies for the monitoring and accurate prediction of, and determination of areas prone to, volcanic eruptions, earthquakes, tsunamis and other related hazards, and gender-responsive capacity enhancement for comprehensive disaster risk reduction.
Mandates Predict the occurrence of volcanic eruptions and earthquakes and their related geotectonic phenomena Determine how eruptions and earthquakes shall occur and also areas likely to be affected Generate sufficient data for forecasting volcanic eruptions and earthquakes Mitigate hazards of volcanic activities through appropriate detection, forecast and warning system Formulate appropriate disaster preparedness plans
https://www.phivolcs.dost.gov.ph/

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End date: 1999SDG: search.filters.sdg.SDG 14 - Life below water

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    Petrology and geochemistry of Camiguin Island, southern Philippines: insights to the source of adakites and other lavas in a complex arc setting
    Castillo, Paterno R.; Janney, Philip E.; Solidum, Renato Jr. U. (Springer Science and Business Media LLC, 1999-01-21)
    Camiguin is a small volcanic island located 12 km north of Mindanao Island in southern Philippines. The island consists of four volcanic centers which have erupted basaltic to rhyolitic calcalkaline lavas during the last ∼400 ka. Major element, trace element and Sr, Nd and Pb isotopic data indicate that the volcanic centers have produced a single lava series from a common mantle source. Modeling results indicate that Camiguin lavas were produced by periodic injection of a parental magma into shallow magma chambers allowing assimilation and fractional crystallization (AFC) processes to take place. The chemical and isotopic composition of Camiguin lavas bears strong resemblance to the majority of lavas from the central Mindanao volcanic field confirming that Camiguin is an extension of the tectonically complex Central Mindanao Arc (CMA). The most likely source of Camiguin and most CMA magmas is the mantle wedge metasomatized by fluids dehydrated from a subducted slab. Some Camiguin high-silica lavas are similar to high-silica lavas from Mindanao, which have been identified as “adakites” derived from direct melting of a subducted basaltic crust. More detailed comparison of Camiguin and Mindanao adakites with silicic slab-derived melts and magnesian andesites from the western Aleutians, southernmost Chile and Batan Island in northern Philippines indicates that the Mindanao adakites are not pure slab melts. Rather, the CMA adakites are similar to Camiguin high-silica lavas which are products of an AFC process and have negligible connection to melting of subducted basaltic crust.