Page 12 - Sumatra Geology, Resources and Tectonic Evolution

Structural map of Sumatra

M. J. CROW & A. J. BARBER

The main sources of data for the Structural and Tectonic Maps were: the 1 : 250 000 and 1:1 000 000 series of geological maps covering Sumatra
published by the Geological Research and Development Centre and the Tectonic Map of Northern Sumatra (1 : 1 500 000) by Aspden et al.
(1982a) for folds, faults and lithological boundaries in the solid geology. Sub-surface structural data shown in Tertiary and younger rocks
is taken mainly from publications of the Indonesian Petroleum Association. The location of the Medial Sumatra Tectonic Zone is taken
from Barber & Crow (2003) and Chapter 13, and segmentation of the Sumatran Fault System and the structures within the Present Accretionary
Complex follow Sieh & Natawidjaya (2000). Structures in the Forearc are taken from Izart et al. (1994) (Meulaboh Basin), Karig et al. (1980),
Milsom et al. (I 995) (Nias Basin), Samuel & Harbury (1996) (Nias), Samuel et al. (1997) (the other forearc islands), Yulihanto & Wiyanto
(1999), Hall et al. (1993) and Howles (1986) (Bengkulu Basin). The Mentawi Fault Zone is described by Diament et al. (1992) and Malod
& Kemal (1996).
Sub-surface structures in the North Sumatra Basin are taken from Davies (1984), Sosromihardjo (1988), Moulds (1989) and Tiltman
(1990); in the Central Sumatra Basin from Moulds (1989) and Heidrick & Aulia (1993); in the South Sumatra Basin from De Coster
(1974), Katili (1974a), Pulunggono (1986), Moulds (1989), Pulunggono et al. (1992), Rashid et al. (1998), Williams et al. (1995),
Yulihanto et al. (1995); and in the the Sunda basin from Bushnell & Temansja (1986), Wight et al. (1986).
The insert Tectonic Map is derived from earlier syntheses published by Van Bemmelen (1949, 1954), Westerveld (1952b), Katili (1973),
Hamilton (1979), Cameron et al. (1980), Aspden et al. (1982a), Pulunggono & Cameron (1984), Wajzer et al. (1991), Hutchison (1994),
McCourt et al. (1996), Metcalfe (2000), Barber & Crow (2000) and Chapter 13.
The reader is referred to the main text for a more exhaustive list of the references consulted.