Sumatra, Sunda Shelf, Natuna - Bibliography of Indonesia Geology

Deposition in semi-enclosed valleys bounded by normal fault creating alluvial fans, some of which poured into
deep lakes, with braided and meandering rivers in other end of valley)
Vachard, D. (1989)- Microfossils and microfacies of the Lower Carboniferous limestones. In: H. Fontaine & S.
Gafoer (eds.) The Pre-Tertiary fossils of Sumatra and their environments, CCOP Techn. Papers 19, p. 31-40.
(Rel. rich Lower Carboniferous foraminifera assemblage from C Sumatra limestones. At least 3 biozones)
Vachard, D. (1989)- A rich algal microflora from the Lower Permian of Jambi Province. In: H. Fontaine & S.
Gafoer (eds.) The Pre-Tertiary fossils of Sumatra and their environments, CCOP Techn. Papers 19, p. 59-69.
(Microfauna of grainstone sample from Pulau Apat, with algae, oncolites, foraminifera (incl. fusulinids) and
small volcanic clasts. Warm climate assemblage and probably Late Asselian age . Calcareous algae strong
Tethyan affinities)
Vachard, D. (1989)- Triassic micro-organisms from the Sibaganding Limestone. In: H. Fontaine & S. Gafoer
(eds.) The Pre-Tertiary fossils of Sumatra and their environments, CCOP Techn. Papers 19, p. 179-189.
(Illustrations of U Ladinian- Lower Carnian algae (Thaumotoporella, Globochaete) and foraminifera (lituolids,
Endothyra, Duotaxis, Aulotortus) from reefal limestones with corals, oncoliths, etc. Resembles microfauna from
Kodiang Lst of NW Malay Peninsula and Namyua Gp in E Burma, but different from U Triassic of Seram)
Vacquier, V. & P.T. Taylor (1966)- Geothermal and magnetic survey off the coast of Sumatra. 1. Presentation
of data. Bull. Earthquake Res. Inst. Univ. Tokyo, 44,p. 531-540. (online at http://repository.dl.itc.utokyo.ac.jp/dspace/bitstream/2261/12265/1/ji0442007.pdf)
(Band of high heat flow in front of deep sea trench off Sumatra. Magnetic anomalies trend mostly E-W; do not
follow curve of Indonesian island arc)
Van Bemmelen, R.W. (1930)- The origin of Lake Toba. Proc. Fourth Pacific Science Congr., Java 1929, IIA, p.
115-124.
(Lake Toba in N Sumatra largest lake in Indonesia, 87x 31 km. Formed as large collapse crater, in which
younger acidic volcanoes developed)
Van Bemmelen, R.W. (1931)- Het Boekit Mapas-Pematang Semoet vulkanisme (Zuid-Sumatra). Verhand.
Geol.-Mijnb. Gen. Nederland Kol., Geol. Ser. IX; p. 57-76.
(Different types of volcanism in two nearby young volcanic centers in S Sumatra: Bt. Mapas basic andesite and
basalt flows, Pg. Semoet acid tuffs)
Van Bemmelen, R.W. (1932)- Geologische waarnemingen in de Gajo landen (N-Sumatra). Jaarboek Mijnwezen
Ned. Indie 59 (1930), Verhand. 3, p. 71-94.
(Geological observations in conjunction with road building project in ‘Gajo lands’, Aceh, in the N Sumatra
sector of Barisan Mts.)
Van Bemmelen, R.W. (1932)- Geologische Kaart van Sumatra 1:200,000. Toelichting bij Blad 10 (Batoeradja).
Dienst Mijnbouw Nederl. Indie, Bandung, 45p.
(‘Geologic map of Sumatra 1:200k; Sheet 10- Baturaja’)
Van Bemmelen, R.W. (1933)- Geologische Kaart van Sumatra 1:200,000. Toelichting bij Blad 6 (Kroei). Dienst
Mijnbouw Nederl. Indie, Bandung, 61p.
(‘Geologic map of Sumatra 1:200k, Sheet 6- Krui’)
Van Bemmelen, R.W. (1934)- De tektonische structuur van Zuid-Sumatra. Natuurk. Tijdschrift Nederl. Indie
94, 1, p. 7-14.
(‘The tectonic structure of South Sumatra’)
Van Bemmelen, R.W. (1939)- The volcano-tectonic origin of Lake Toba (North Sumatra). De Ingenieur in
Nederl. Indie 6, p. 126-140.
Bibliography of Indonesia Geology v. 4.1 108 www.vangorselslist.com July 2012