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Full-Text Articles in Physical Sciences and Mathematics
Geochemistry Of The Late Cretaceous Pandan Formation In Cebu Island, Central Philippines: Sediment Contributions From The Australian Plate Margin During The Mesozoic, Jerali D. Rodrigo, Jilian Aira S. Gabo-Ratio, Karlo L. Queaño, Allan Gil S. Fernando, Leopoldo P. De Silva Jr, Kotaro Yonezu, Yu Zhang
Geochemistry Of The Late Cretaceous Pandan Formation In Cebu Island, Central Philippines: Sediment Contributions From The Australian Plate Margin During The Mesozoic, Jerali D. Rodrigo, Jilian Aira S. Gabo-Ratio, Karlo L. Queaño, Allan Gil S. Fernando, Leopoldo P. De Silva Jr, Kotaro Yonezu, Yu Zhang
Environmental Science Faculty Publications
The Late Cretaceous Pandan Formation in Cebu Island is one of the oldest sedimentary units in the Central Philippines. The inconsistencies in geological descriptions and interpretation of the depositional environment of the Pandan Formation complicated efforts to determine the origin and tectonic history of the basement of Cebu Island. This study therefore looks into the petrological and geochemical characteristics of the Pandan Formation and their implications for the tectonic development of the Philippine Arc during the late Mesozoic. Petrographic analyses indicate significant contribution from mafic sources with additional inputs from felsic rocks, siliciclastics and metamorphic sources. Enrichment of detrital quartz …
Mesozoic Rock Suites Along Western Philippines: Exposed Proto-South China Sea Fragments?, Graciano P. Yumul Jr, Carla B. Dimalanta, Jillian Aira Gabo-Ratio, Karlo L. Queaño, Leo T. Armada, Jenielyn T. Padrones, Decibel V. Faustino-Eslava, Betchaida D. Payot, Edanjarlo J. Marquez
Mesozoic Rock Suites Along Western Philippines: Exposed Proto-South China Sea Fragments?, Graciano P. Yumul Jr, Carla B. Dimalanta, Jillian Aira Gabo-Ratio, Karlo L. Queaño, Leo T. Armada, Jenielyn T. Padrones, Decibel V. Faustino-Eslava, Betchaida D. Payot, Edanjarlo J. Marquez
Environmental Science Faculty Publications
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 …