Determination of the relationships between the southern, marine-dominated Miocene
basins of south central Turkey and their continental hinterland in southern Turkey has traditionally
been frustrated by the apparent absence of basin remnants within the Taurus Mountains. The Dikme
basin, which seems to be an enclave of basin remnants within the Aladağ Mountains (Eastern
Taurides), consists mainly of coarse-grained continental sediments of various facies. These mostly
early–middle Miocene sediments were studied to determine the depositional environments and the
factors controlling the basin formation and basin fill architecture, to attempt to close the information
gap between the Adana Basin to the south and central Anatolian Miocene further to the north. A generally
southwest-flowing axial fluvial system and interfingering coarse-grained marginal alluvial clastics
derived from northwest and southeast were identified. The marginal facies to the northwest is
bounded by a N 55° E-running structural lineament, that starts from the Ecemiş Fault Zone and in
digital elevation models extends toward the north of the study area. Along this lineament, Miocene
sediments onlap steep fault-line escarpments. Certain Miocene levels are tectonically disrupted, and
an intraformational unconformity and boulder conglomerates are also well-developed in the Miocene
sequence. The southeast boundary is similarly defined by a NE-trending fault that periodically elevated
the adjacent Tufanbeyli autochthon, producing coarse clastics from this area. This boundary
fault also induced fining-upwards vertical patterns and synsedimentary deformation in the marginal
facies. Additionally, the central part of the basin exhibits a distinct fault-defined morphology characterized
by small-scale (tens of metres to 150 m high) valley-and-sill topography. A thin marine interval
was also encountered in the southernmost part of the basin, indicating that the clastic system originating
around this area debouched into a Miocene sea situated further to the south. The proposed palaeogeography
and basin fill model suggests that the Dikme basin and similar Miocene remnants, all
controlled mainly by a northeast-running extensional or transtensional fault system, may have been
parts of the terrestrial hinterland that supplied sediment to rapidly subsiding marine areas further
south, such as the Adana Basin.