Abstract
To demonstrate the extensional origin of the Malay Basin and calculate the stretching factor (β), Madon & Watts (1998) conducted subsidence-history backstripping on more than 60 wells. The resulting backstripped basement depths through time were then matched to best-fit theoretical subsidence curves, suggesting a McKenzie (1978)-type basin with rapid extensional subsidence (\\\'synrift\\\') followed by slower thermal subsidence (\\\'postrift\\\'). However, the match is only \\\'relatively poor\\\' (p. 381) for the first half of the basin\\\'s 35-0 Ma history (see subsidence curves, Madon & Watts 1998, fig. 7). In the second half, the match looks better on cursory inspection of the subsidence curves, but this is partly an artefact of lacking basement-depth data points over part of this time interval (e.g. 19-0 Ma in well M-6; 7-0 Ma in all 12 illustrated wells).
Published Version
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