Abstract
The Maesan fan‐delta‐fed slope system in the Miocene Pohang Basin occurs between two Gilbert‐type fan deltas. Detailed analysis of sedimentary facies and bed geometry reveals that the sequence is represented by 13 sedimentary facies. These facies can be organized into three facies associations, representing distinct depositional environments: alluvial fan (facies association I), steep‐faced slope (facies association II), and basin plain (facies association III). Subaerial debris flows and dense, inertia‐dominated currents were transformed into subaqueous sediment gravity flows in steep‐faced slope environments. Further downslope, these flows were channelized and formed lobate conglomerate and sandstone bodies at the terminal edge of the channels (or chutes). Interchannel and interlobe areas were dominated by homogeneous mudstone and muddy sandstone, deposited by suspension settling of fine‐grained materials. Part of the steep‐faced slope deposits experienced large‐scale slides and slumps. The chutes/channels, lobes and splays on the steep‐faced slope of the Maesan system are similar to those in modern subaqueous coarse‐grained fan‐delta systems.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
