Active deformation of the Central Myanmar Forearc Basin: Insight from post-Pleistocene inversion of the Pyay Fault
Abstrak
Abstract Pyay sub-basin is located in the southern part of the Central Myanmar Forearc Basin, an elongate belt of en-echelon folds and thrust faults formed as a result of the hyper-oblique convergence of the India and Asia plates. Limited neotectonic studies suggest that the Pyay Fault is a major Pliocene inverted structure that trapped the hydrocarbons in Pyay sub-basin, where only sparse field-based observations are available to address the nature of very recent neotectonic processes. This study focuses on structural deformation related to active inversion of the Pyay Fault using field-based geological observations and interpretations of industrial seismic data. We map the ∼105 km long Pyay Fault, an east- dipping high-angle reverse fault with a significant dextral strike-slip component. The fault underlies the western limb of the major NNW-SSE- striking anticlinal ridge that forms the western margin of Pyay sub- basin. Growth strata within the Pliocene-Pleistocene Irrawaddy Formation, imaged in the shallow part (
Topik & Kata Kunci
Penulis (6)
L. Aung
Kyaw Zin Oo
K. Win
G. Moore
S. T. Tun
W. Naing
Akses Cepat
- Tahun Terbit
- 2020
- Bahasa
- en
- Total Sitasi
- 11×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1016/j.jaesx.2020.100037
- Akses
- Open Access ✓