Abstract
The Kaoping submarine canyon, connected to the Kaoping River in the coastal plain in SW Taiwan, continues the dispersal path of modern Kaoping River sediments, from an active small mountainous drain basin to the receiving basin of the South China Sea. Using seismic reflection sections, Chirp sonar profiles, and bathymetric mapping, we reveal characteristic erosive processes responsible for multiple cut-and-fill features, deeply entrenched thalweg, and sediment dispersal that are closely related to turbidity currents in the canyon. The river-canyon connection setting, along with extreme climatic conditions and active tectonism, is favorable for generation of turbidity currents at the canyon head. The upper reach of the Kaoping Canyon is distinguished into three distinct morpho/sedimentary features. The canyon head is characterized by V-shaped axial thalweg erosion. The sinuous segment of the upper reach is dominated by a deeply incised canyon pathway with trough-like morphology. Relatively small-scaled features of cut-and-fill associated with the dominant incision process are commonly along the canyon floor, resulting in a flat-floored pathway. Sliding and slumping dominated the steep canyon walls, producing and transporting sediments to canyon floor and partially filling up canyon thalweg. The meandering segment is characterized by erosive features where deeply down-cutting occurs in the outer bend of the major sea valley, forming V-shaped entrenched thalweg. The recurrences of turbidity currents have allowed continuous incision of the canyon head and have kept the connection between the canyon head and the river mouth during Holocene highstand of sea level. The upper reach of the Kaoping Canyon is linked to drainage area and maintains as a conduit and/or sink for terrigenous and shallow marine material. Sediment-laden river plume operates in the Kaoping River-Canyon system, with turbidity currents flushing river sediments into the canyon head where the canyon thalweg is the most erosive. Presently, the upper reach of the Kaoping Canyon can be considered as a temporal sediment sink.
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References
Shepard F P, Dill R F. Submarine Canyons and Other Sea Valleys. Chicago: Rand McNally, 1966
Shepard F P. Submarine canyons: Multiple causes and long-time persistence. AAPG Bull, 1981, 65: 1062–1077
Mulder T, Cirac P, Gaudin M, et al. Understanding Continent-Ocean Sediment Transfer. Eos Trans, 2004, 85: 257–262
Chiang C S, Yu H S, Chou Y W. Characteristics of the wedge-top depozone of the southern Taiwan foreland basin. Basin Res, 2004, 16: 65–78
Liu C S, Lundberg N, Reed D L, et al. Morphological and seismic characteristics of the Kaoping Submarine Canyon. Mar Geol, 1993, 111: 93–108
Liu J T, Lin H L. Sediment dynamics in a submarine canyon: A case of river-sea interaction. Mar Geol, 2004, 207: 55–81
Yu H S, Chiang C S, Shen S M. Tectonically active sediment dispersal system in SW Taiwan margin with emphasis on the Kaoping Submarine Canyon. J Mar Syst, 2009, 76: 369–382
Huh C A, Lin H L, Lin S W, et al. Modern accumulation rates and a budget of sediment off the gaoping (Kaoping) River, SW Taiwan: A tidal and flood dominated depositional environment around a submarine Canyon. J Mar Syst, 2009, 76: 405–416
Milliman J D, Syvitski J P M. Geomorphic/tectonic control of sediment discharge to the ocean: The importance of small mountainous rivers. J Geol, 1992, 100: 525–544
Milliman J D, Lin S, Kao S J, et al. Short-term changes in seafloor character due to flood-derived hyperpycnal discharge: Typhoon Mindulle, Taiwan, July 2004. Geology, 2007, 35: 779–782
Salles T, Mulder T, Gaudin M, et al. Simulating the 1999 Capbreton canyon turbidity current with a Cellular Automata model. Geomorphology, 2008, 97: 516–537
Gaudin M, Mulder T, Cirac P, et al. Past and present sedimentary activity in the Capbreton Canyon, southern Bay of Biscay. Geo-Mar Lett, 2006, 26: 331–345
Popescu I, Lericolais G, Panin N, et al. The Danube submarine canyon (Black Sea): Morphology and sedimentary processes. Mar Geol, 2004, 206: 249–265
Baztan J, Berné S, Olivet J L, et al. Axial incision: The key to understand submarine canyon evolution (in the western Gulf of Lion). Mar Pet Geol, 2005, 22: 805–826
Canals M, Puig P, Durrieu de Madron X, et al. Flushing submarine canyons. Nature, 2006, 444: 354–357
Lastras G, Canals M, Urgeles R, et al. A walk down the Cap de Creus canyon, northwestern Mediterranean Sea: Recent processes inferred from morphology and sediment bedforms. Mar Geol, 2007, 246: 176–192
Lastras G, Arzola R G, Masson D G, et al. Geomorphology and sedimentary features in the Central Portuguese submarine canyons, western Iberian margin. Geomorphology, 2009, 103,3: 310–329
Chiang C S, Yu H S. Evidence of hyperpycnal flows at the head of the meandering Kaoping Canyon off SW Taiwan. Geo-Mar Lett, 2008, 28: 161–169
Liu J T, Liu K J, Huang J C. The influence of a submarine canyon on river sediment dispersal and inner shelf sediment movements: A perspective from grain-size distributions. Mar Geol, 2002, 181: 357–386
Liu J T, Lin H L, Hung J J. A submarine canyon conduit under typhoon conditions off southern Taiwan. Deep-Sea Res Part IOceanogr Res Pap, 2006, 53: 223–240
Kudrass H R, Michels K H, Wiedicke M, et al. Cyclones and tides as feeders of a submarine canyon off Bangladesh. Geology, 1998, 8: 715–718
Oliveira A, Santos A I, Rodrigues A, et al. Sedimentary particle distribution and dynamics on the Nazare canyon system and adjacent shelf (Portugal). Mar Geol, 2007, 246: 105–122
Wessel P, Smith W H F. The GMT-System Version 2.0. Technical Reference and Cookbook. San Diego: Scripps Inst. Oceanography, Univ Calif, 1991
Mulder T, Syvitski J P M, Migeon S, et al. Marine hyperpycnal flows: Initiation, behavior and related deposits. A review. Mar Pet Geol, 2003, 20: 861–882
Kolla V, Posamentier H W, Wood L J. Deep-water and fluvial sinuous channels-Characteristics, similarities and dissimilarities, and modes of formation. Mar Pet Geol, 2007, 24: 388–405
Chiang C S, Yu H S. Morphotectonics and incision of the Kaoping submarine canyon, SW Taiwan orogenic wedge. Geomorphology, 2006, 80: 199–213
Vail P R, Audemard F, Bowman S A, et al. The stratigraphic signature of tectonics, eustacy and sedimentology-An overview. In: Einsele G, Ricken W, Seilacher A, eds. Cycles and Events in Stratigraphy. Berlin, Heidelberg and New York: Springer, 1991
Yu H S, Hong E. Shifting submarine canyons and development of a foreland basin in SW Taiwan: Controls of foreland sedimentation and longitudinal sediment transport. J Asian Earth Sci, 2006, 27: 922–932
Olabode S O, Adekoya J A. Seismic stratigraphy and development of Avon canyon in Benin (Dahomey) basin, southwestern Nigeria. J Afr Earth Sci, 2008, 50: 286–304
Walsh J P, Nittrouer C A. Contrasting styles of off-shelf sediment accumulation in New Guinea. Mar Geol, 2003, 196: 105–125
Drexler T M, Nittrouer C A, Mullenbach B L. Impact of local morphology on sedimentation in a submarine canyon, ROV studies in Eel Canyon, northern California, U.S.A. J Sediment Res, 2006, 76: 839–853
Sorbe J C. Deep-sea macrofaunal assemblages within the benthic boundary layer of the Cap-Ferret Canyon (Bay of Biscay, NE Atlancitc). Deep-Sea Res Part II-Top Stud Oceanogr, 1999, 46: 2309–2329
Heezen B C, Menzies R J, Schneider E D, et al. Congo submarine canyon. AAPG Bull, 1964, 48: 1126–1149
Babonneau N, Savoye B, Cremer M, et al. Morphology and architecture of the present canyon and channel system of the Zaire deep-sea fan. Mar Pet Geol, 2002, 19: 445–467
Hsu S K. Turbidity Currents, Submarine Landslides and the 2006 Pingtung Earthquake off SW Taiwan. Terr Atmos Ocean Sci, 2008, 19: 767–7
Normark W R, Piper D J W. Initiation processes and flow evolution of turbidity currents: Implications for the depositional record. In: Osborne R H, From Shoreline to Abyss: Contributions in Marine Geology in ed. Honor of Francis Parker Shepard. SEPM, 1991, 46: 207–230
Noda A, TuZino T, Kanai Y, et al. Paleoseismicity along the southern Kuril Trench deduced from submarine-fan turbidites. Mar Geol, 2008, 254: 73–90
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Chiang, C., Yu, H. Sedimentary erosive processes and sediment dispersal in Kaoping submarine canyon. Sci. China Earth Sci. 54, 259–271 (2011). https://doi.org/10.1007/s11430-010-4076-y
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DOI: https://doi.org/10.1007/s11430-010-4076-y