Abstract

Yamada and Nakada (2006) examined the stratigraphic architecture of sedimentary basin induced by mantle diapiric upwelling and eustatic event. They applied their model to the Karatsu–Sasebo coalfield in northwest Kyushu, southwest Japan. In the application, a neutral stress regime was assumed during subsidence and uplift of the coalfield. The Sazagawa Thrust at the Kita-Matsuura peninsula in the coalfield Fig. 1, however, suggests that NW Kyushu would have been al least twice under the compressive stress regime (Nagahama, 1970; Kurasawa, 1970), suggesting that the assumption of a monotonous neutral stress regime is not the case for the Karatsu–Sasebo coalfield. Therefore, their application for the Karatsu–Sasebo coalfield has to be revised. In the following this issue is discussed.

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