Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments?

An ancient oceanic crustal leading edge east of mainland Asia, the proto-South China Sea crust, must have existed during the Mesozoic based on tectonic reconstructions that accounted for the presence of subducted slabs in the lower mantle and the exposed oceanic lithospheric fragments strewn in the...

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Main Authors: Yumul, Graciano P, Jr, Dimalanta, Carla B, Gabo-Ratio, Jillian Aira, Queaño, Karlo L, Armada, Leo T, Padrones, Jenielyn T, Faustino-Eslava, Decibel V, Payot, Betchaida D, Marquez, Edanjarlo J
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Published: Archīum Ateneo 2020
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Online Access:https://archium.ateneo.edu/es-faculty-pubs/65
https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1064&context=es-faculty-pubs
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spelling ph-ateneo-arc.es-faculty-pubs-10642021-04-13T06:39:32Z Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments? Yumul, Graciano P, Jr Dimalanta, Carla B Gabo-Ratio, Jillian Aira Queaño, Karlo L Armada, Leo T Padrones, Jenielyn T Faustino-Eslava, Decibel V Payot, Betchaida D Marquez, Edanjarlo J An ancient oceanic crustal leading edge east of mainland Asia, the proto-South China Sea crust, must have existed during the Mesozoic based on tectonic reconstructions that accounted for the presence of subducted slabs in the lower mantle and the exposed oceanic lithospheric fragments strewn in the Philippine and Bornean regions. Along the western seaboard of the Philippine archipelago, numerous Mesozoic ophiolites and associated lithologies do not appear to be genetically associated with the younger Paleogene-Neogene ocean basins that currently surround the islands. New sedimentological, paleomagnetic, paleontological, and isotopic age data that we generated are presented here, in combination with our previous results and those of others, to reassess the geological make-up of the western Philippine island arc system. We believe that the oceanic lithospheric fragments, associated melanges, and sedimentary rocks in this region are exhumed slivers of the proto-South China Sea ocean plate. 2020-01-01T08:00:00Z text application/pdf https://archium.ateneo.edu/es-faculty-pubs/65 https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1064&context=es-faculty-pubs Environmental Science Faculty Publications Archīum Ateneo Mesozoic Proto-South China Sea Ophiolites Philippines Environmental Sciences Natural Resources and Conservation
institution Ateneo De Manila University
building Ateneo De Manila University Library
continent Asia
country Philippines
Philippines
content_provider Ateneo De Manila University Library
collection archium.Ateneo Institutional Repository
topic Mesozoic
Proto-South China Sea
Ophiolites
Philippines
Environmental Sciences
Natural Resources and Conservation
spellingShingle Mesozoic
Proto-South China Sea
Ophiolites
Philippines
Environmental Sciences
Natural Resources and Conservation
Yumul, Graciano P, Jr
Dimalanta, Carla B
Gabo-Ratio, Jillian Aira
Queaño, Karlo L
Armada, Leo T
Padrones, Jenielyn T
Faustino-Eslava, Decibel V
Payot, Betchaida D
Marquez, Edanjarlo J
Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments?
description An ancient oceanic crustal leading edge east of mainland Asia, the proto-South China Sea crust, must have existed during the Mesozoic based on tectonic reconstructions that accounted for the presence of subducted slabs in the lower mantle and the exposed oceanic lithospheric fragments strewn in the Philippine and Bornean regions. Along the western seaboard of the Philippine archipelago, numerous Mesozoic ophiolites and associated lithologies do not appear to be genetically associated with the younger Paleogene-Neogene ocean basins that currently surround the islands. New sedimentological, paleomagnetic, paleontological, and isotopic age data that we generated are presented here, in combination with our previous results and those of others, to reassess the geological make-up of the western Philippine island arc system. We believe that the oceanic lithospheric fragments, associated melanges, and sedimentary rocks in this region are exhumed slivers of the proto-South China Sea ocean plate.
format text
author Yumul, Graciano P, Jr
Dimalanta, Carla B
Gabo-Ratio, Jillian Aira
Queaño, Karlo L
Armada, Leo T
Padrones, Jenielyn T
Faustino-Eslava, Decibel V
Payot, Betchaida D
Marquez, Edanjarlo J
author_facet Yumul, Graciano P, Jr
Dimalanta, Carla B
Gabo-Ratio, Jillian Aira
Queaño, Karlo L
Armada, Leo T
Padrones, Jenielyn T
Faustino-Eslava, Decibel V
Payot, Betchaida D
Marquez, Edanjarlo J
author_sort Yumul, Graciano P, Jr
title Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments?
title_short Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments?
title_full Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments?
title_fullStr Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments?
title_full_unstemmed Mesozoic rock suites along western Philippines: Exposed proto-South China Sea fragments?
title_sort mesozoic rock suites along western philippines: exposed proto-south china sea fragments?
publisher Archīum Ateneo
publishDate 2020
url https://archium.ateneo.edu/es-faculty-pubs/65
https://archium.ateneo.edu/cgi/viewcontent.cgi?article=1064&context=es-faculty-pubs
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