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Subduction and melting processes inferred from U-Series, SrNdPb isotope, and trace element data, Bicol and Bataan arcs, Philippines
 

Summary: Subduction and melting processes inferred from U-Series, Sr­Nd­Pb
isotope, and trace element data, Bicol and Bataan arcs, Philippines
S. Andrew DuFrane a,*, Yemane Asmerom a
, Samuel B. Mukasa b
,
Julie D. Morris c
, Brian M. Dreyer c
a
University of New Mexico, Department of Earth & Planetary Sciences, Albuquerque, NM, USA
b
University of Michigan, Department of Geological Sciences, Ann Arbor, MI, USA
c
Washington University, Department of Earth & Planetary Science, St. Louis, MO, USA
Received 13 June 2005; accepted in revised form 21 April 2006
Abstract
We present U-series, Sr­Nd­Pb isotope, and trace element data from the two principal volcanic chains on Luzon Island, developed
over oppositely dipping subduction zones, to explore melting and mass transfer processes beneath arcs. The Bataan (western) and Bicol
(eastern) arcs are currently subducting terrigenous and pelagic sediments, respectively, which have different trace element and isotopic
compositions. The range of (230
Th/238

  

Source: Asmerom, Yemane - Department of Earth and Planetary Sciences, University of New Mexico

 

Collections: Geosciences