Sumatra, Sunda Shelf, Natuna - Bibliography of Indonesia Geology

Somantri, M. (2000)- Distribution of gamma-ray values and sulphur contents in relation with depositional
environment of the coals in Bayunglincir coal area, South Sumatera. Proc. 29th Ann. Conv. Indon. Assoc. Geol.
(IAGI), 1, p. 155-176.
Sosromihardjo, S.P.C. (1988)- Structural analysis of the North Sumatra Basin- with emphasis on Synthetic
Aperture Radar data. Proc. 17th Ann. Conv. Indon. Petrol. Assoc. 1, p. 187-209.
Sosrowidjojo, I.B. (2006)- Coalbed methane potential in the South Palembang Basin. Proc. Jakarta 2006 Int.
Geosc. Conf. Exhib., Indon. Petrol. Assoc., 06-CH-05, 5p.
Sosrowidjojo, I.B., R. Alexander & R.I. Kagi (1994)- The biomarker composition of some crude oils from
Sumatra. Organic Geochem. 21, p. 303-312.
(Crude oils from N, C and S Sumatra basins analysed for biomarkers. Three types: (1) N Sumatra marine
carbonate depositional setting (2) C Sumatra waxy crudes from brackish- lacustrine, and (3) light oil from N
Sumatra and two oils from S Sumatra from deltaic/ nearshore depositional setting)
Sosrowidjojo, I.B & F.X. Djatmiko (1997)- Petroleum system di Cekungan Sumatera Selatan, suatu kajian awal
eksplorasi di sistem karbonat. Proc. 26th Ann. Conv. Indon. Assoc. Geol. (IAGI), Hydrocarbons, p. 50-57.
('Petroleum system in the S Sumatr basin, some early exploration studies in the carbonate system')
Sosrowidjojo, I.B., B. Setiardja, Zakaria, P.G. Kralert, R. Alexander & R.I. Kagi (1994)- A new geochemical
method for assessing the maturity of petroleum: application to the South Sumatra Basin. Proc. 23rd Ann. Conv.
Indon. Petrol. Assoc. 1, p. 439-455.
(Assessing maturity of petroleum and source rocks using vitrinite reflectance and conventional biomarker data
can be problematic when source rocks subjected to rapid heating and contain abundant land plant remains or
when crude oil has been biodegraded. New maturity indicator based upon reactions of cadalene proposed)
Sosrowidjojo, I.B. & A. Saghafi (2009)- Development of the first coal seam gas exploration program in
Indonesia: reservoir properties of the Muaraenim Formation, South Sumatra. Int. J. Coal Geol. 79, p. 145-156.
(Late Miocene Muaraenim Fm thick, low rank coals (lignite to sub-bituminous) in twelve named horizons.
Believed most prospective for CBM production in Indonesia. Five exploration wells in Rambutan Gas field to
~1000m depth. Five major coal seams between 450-1000 m. Coals vitrinite-rich (>75%). Gas contents in
samples up to 5.8m3/t, mainly methane (CH4 80-93%, CO2 6 -19%). Gas released into production well richer
in CH4 (94-98%). Suitable gas recovery parameters for three of five coal seams with total thickness of >30 m)
Specht, T.D., T. Rahardjo, F.I. Frasse & P.B. Dobson (2000)- A comprehensive evaluation of the exploration
potential of the Offshore Sibolga Area, West Coast Sumatra Island, Indonesia. AAPG Int. Conf. Exhib., Bali
2000. (Abstract only)
(Caltex Sibolga PSC in Mentawai Forearc Basin acquired in 1996. Water depths from onshore to >2000’;
sediments up to ~20,000’ thick. Bordered by outer arc and Mesozoic-Paleozoic core and volcanic arc of
Sumatra. Basin began to subside around 17 Ma and received nearly continuous Neogene sedimentation.
Regional right-lateral strike-slip faults produced differences in structural and stratigraphic evolution between
sub basins. Shallow burial depths limit size of biogenic accumulations and low heatflow suggests only limited
thermogenic petroleum system).
Stankiewicz, J., T. Ryberg, C. Haberland, Fauzi & D. Natawidjaja (2010)- Lake Toba volcano magma chamber
imaged by ambient seismic noise tomography. Geoph. Res. Lett. 37, L17306, 5 p.
(Ambient noise tomography used to image low-velocity body representing magma chamber under Quaternary
Lake Toba caldera. Chamber complex 3-D geometry, with at least two separate sub-chambers. Deep low
velocity body below 7 km depth SW of lake possibly another magma chamber. Sumatra Fault marks velocity
contrast, but only down to 5 k)
Stevens, S.H. & G.F. Moore (1985)- Deformational and sedimentary processes in trench slope basins of the
western Sunda Arc, Indonesia. Marine Geol. 69, 1-2, p. 93-112.
Bibliography of Indonesia Geology v. 4.1 93 www.vangorselslist.com July 2012