Provenance of the Eocene sandstones in the southern Chindwin Basin, Myanmar: Implications for the unroofing history of the Cretaceous-Eocene magmatic arc

摘要

The Eocene sedimentary rocks, exposed in the southern Chindwin Basin, northern part of Myanmar, are characterized by a thick sequence of continental clastic units consisting of sandstones with abundant volcaniclastic materials, and a subordinate amount of metamorphic lithic fragments. Detrital information preserved in these Eocene clastic sequences has shed light on the erosional unroofing history of a Cretaceous to Eocene Andean-type continental magmatic arc related to the India-Asia collision.