Abstract
We propose a model for the exhumation of Late Miocene coesite-eclogite in the Woodlark Rift of Papua New Guinea. Reorganization within the obliquely convergent Australian-Pacific plate boundary zone led to formation of the Woodlark microplate. Counterclockwise rotation of the microplate relative to the Australian plate resulted in extensional reactivation of a subduction thrust (subduction inversion) and the exhumation of high- and ultrahigh-pressure (HP-UHP) rocks within the Australian-Woodlark plate boundary zone. The model invokes plate tectonic processes to drive rapid exhumation and predicts spatial and temporal patterns of exhumation to assess its applicability to HP-UHP terranes worldwide.
Original language | English (US) |
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Pages (from-to) | 823-826 |
Number of pages | 4 |
Journal | Geology |
Volume | 36 |
Issue number | 10 |
DOIs | |
State | Published - 2008 |
Keywords
- Exhumation
- Microplate rotation
- Subduction inversion
- Ultrahigh-pressure
ASJC Scopus subject areas
- Geology