Investor Presentaiton
LEMIGAS
GEOLOGY OF the NORTH SUMATERA BASIN
TECTONIC ELEMENTS
95°E
ANDAMAN
SEA
OCEANIC
CRUST
N.S
MERGUI RIDGE
Sot-basin
Banda Aceh
MERGUI
BASIN
100%
N
Kilometers
125
MERGUI
MICROPLATE
Malacca Platform
Pase Arun High
Sub-basin
LEGEND:
STRUCTURAL HIGH
STRUCTURAL/BASINAL LOW
MERGUI MICROPLATE
ANDAMAN SEA OCEANIC CRUST
NORMAL FAULT
TRUST FAULT
95°E
Yang Besar
High
Fault System
Tamiang Sub-basin
_ Lokop-Kutacane Ra
SUMATERA
Aru Platform
Medan
MALAYSIA
N.S
100
The main structural elements are
dominated by N-S and NW-SE
trending direction.
Three tectonic events occurred in
the basin Initial extension phase
in the Late Eocene - Early
Oligocene; Wrench tectonism in
Mid Miocene; and Compressional
tectonism during Plio-Pleistocene.
The N-S trends represent Pre-
Miocene Structure, and the NW-SE
are Post Miocene structures
100°E
PND, 2006View entire presentation