SEDIMENTOLOGY AND STRATIGRAPHY OF THE KUDAT FORMATION (OLIGOCENE- EARLY MIOCENE), KUDAT PENINSULA, SABAH

A detailed study of sedimentology and stratigraphy of the Kudat Formation
(Oligocene - Early Miocene), Sabah, Malaysia was undertaken to: (1) describe and
interpret the different sedimentary facies, (2) evaluate the facies associations in terms
of sedimentary processes and environments, and (3) construct a depositional model
taking into account the sedimentology and biostratigraphy of the Kudat Formation.
This study was conducted on ten outcrops of the Kudat Peninsula. Seven facies (Fl-
F7) have been identified: structureless/massive sandstone (Fl), parallel laminated
sandstone (F2), parallel laminated and rippled sandstone (F3), rippled sandstone (F4),
graded bedded sandstone (F5), chaotic deposits (F6) and parallel laminated to
structureless mudstone and siltstone (F7). The facies resulted in recognition of three
facies associations: upper submarine fan (FA1), middle submarine fan (FA2) and
lower submarine fan (FA3).