Sumatra, Sunda Shelf, Natuna - Bibliography of Indonesia Geology

(Petapahan 1971 oil discovery 60km W of Pekanbaru in Lower Miocene Sihapas Group. Young NW-SE
trending anticline)
Rory, R. (1990)- Geology of the South Lho Sukon 'A' Field, North Sumatra, Indonesia. Proc. 19th Ann. Conv.
Indon. Petrol. Assoc., 1, p. 1-40.
(South Lho Sukon 'A' 1972 gas discovery,~35 km SE of Arun. Reservoir E-M Miocene Peutu Fm reefal buildup,
overlain by M Miocene Baong shales. Overlying rocks mildly folded and faulted during the Barisan orogeny in
Plio-Pleistocene. As at Arun, reservoir limestones deposited in reef, near-reef and "lagoonal" environments in
E- M Miocene. Average porosity 8-15% )
Rose, R. (1983)- Miocene carbonate rocks of Sibolga Basin, Northwest Sumatra. Proc. 12th Ann. Conv. Indon.
Petrol. Assoc. 1, p. 107-125.
(1970’s Union Oil exploration of Sibolga forearc basin discovered gas in six localities, five in carbonate
reservoirs. Moderately deformed Neogene 1000’-15,000’ thick over folded Paleogene sediments and volcanics.
Miocene carbonates primarily beneath present-day shelf on E side of basin. Oldest unit in N is M Miocene,
possibly E Miocene shelf limestone with reefs, overlain by deepwater clay-mudstone-siltstone, then U Miocene
shelf carbonate-clastics with reefs. In S carbonate deposition late M Miocene- Late Miocene, with fewer reefs
than to N. Methane gas in U Miocene in Keudepasi 1 and Singkel 1 wells, both in reefal deposits)
Rose, W.I. & C.A. Chesner (1987)- Dispersal of ash in the great Toba eruption, 75 ka. Geology 15, p. 913-917.
Rose, W.I. & C.A. Chesner (1990)- Worldwide dispersal of ash and gases from earth's largest known eruption:
Toba, Sumatra, 75 ka. Palaeogeogr., Palaeoclim., Palaeoecol. 89, 3, p. 269-275.
(Eruption of Youngest Toba Tuffat ~75 ka in N Sumatra produced >2800 km3 of dense rock equivalent rhyolite
magma. Much of volume preserved as non-welded outflow sheet covering 20,000-30,000 km2 and thick, welded
intracaldera tuff. At least 800 km3 of Toba ash deposited in ash blanket over Indian Ocean and S Asia. Masses
of ash and gases released nearly two orders of magnitude higher than any known historic eruption)
Rozalli, M., A. Putra, A. Bachtiar, P.A. Suandhi, W. Utomo & A. Budiman (2012)- New insights into the
petroleum geology of the Mountain Front area, Central Sumatra Basin. Proc. 36th Ann. Conv. Indon. Petrol.
Assoc., IPA12-G-178, p. 1-15.
(Mountain front area on S margin of Central Sumatra Basin no proven petroleum system)
Rozeboom, J.J. (1961)- Paleontologic methods of correlation in Central Sumatra. Contr. Dept. Geol. Inst.
Techn. Bandung 46, 13p
(Brief Caltex paper on Central Sumatra basin stratigraphy and micropaleontology)
Rosidi, H.M.D, Tjokrosaputro & B. Pendowo (1975)- Geologic map of the Painan and northeastern part of the
Muarasiberut Quadrangles, Sumatra(5/VIII), 1:250,000. Geol. Res. Dev. Centre, Bandung, 10 p. + map
Rusli, B., M.A. Arham, E. Wijayanti & A. Ridlo (2010)- Acceleration of thin oil rim development of Fariz
Field. Proc. 34th Ann. Conv. Indon. Petrol. Assoc., IPA10-E-029 7 p.
(Small S Sumatra Fariz Field 2004 Medco discovery 3 km E of Soka. with 250' gas cap, surrounded by 80' oil
rim in Baturaja limestone and Talang Akar Fm conglomerate)
Rustanto, B. & E. Hartono (1991)- Sekuen pengendapan dan systems tracts Formasi Belumai daerah Aru-
Langkat, cekungan Sumatra Utara. Proc. 20th Ann. Conv. Indon. Assoc. Geol. (IAGI), Jakarta, p. 237-260.
(Sequence stratigraphy in Belumai Fm, Aru-Langkat area, N Sumatra)
Rustanto, B. & E. Hartono (1991)- Sekuen pengendapan dan systems tract Formasi Belumai daerah Aru dan
Langkat Cekungan Sumatera Utara. Proc. 20th Ann. Conv. Indon. Assoc. Geol., p. 237 - 260.
Rutimeyer, L. (1874)- Bemerkungen zu den fossilen Fischen aus Sumatra. Abhand. Schweiz. Pal. Ges. 1, p. 20-
26.
Bibliography of Indonesia Geology v. 4.1 84 www.vangorselslist.com July 2012