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

Huh, Chih-An; Lin, Hui-Ling; Lin, Saulwood; Huang, Ya-Wen

doi:10.1016/j.jmarsys.2007.07.009

Cited by 82 publications

(41 citation statements)

References 19 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with the spatial distribution of 210 Pb-based sedimentation rates (Huh et al 2009), it clearly shows the same distribution pattern between excess 210 Pb inventory and sedimentation rates (Fig. 7).…”

Section: Spatial Distribution Of Excess 210 Pb Inventorymentioning

confidence: 61%

“…1). Among them, the GSC and FSC are two major submarine canyon systems which play an important role on delivering sediments from shallow waters to deep sea (Liu et al 2002;Liu and Lin 2004;Huh et al 2009;Su et al 2012).…”

Section: Study Area and Backgroundmentioning

confidence: 99%

“…The sedimentation rates are lower than 0.1 cm yr -1 . On the contrary, the cores collected from the southern Upper Gaoping Slope (between GSC and FSC) the 210 Pb profiles reveal the influence of gravity flows induced by typhoon activities (Huh et al 2009;Su et al 2012). After excluding the turbidite layers, the sedimentation rates were recalculated by recombining the non-events layers.…”

Section: Pb Profilesmentioning

confidence: 99%

“…7). Considering the study area is deeply influenced by turbidity currents, hyperpycnal flows, and debris flows (Huh et al 2009;Hale et al 2012;Su et al 2012), non-steady state profiles are frequently obstructing the use of excess 210 Pb as a geo-chronometer. We proposed that the spatial distribution of excess 210 Pb inventory can be used as a substitute proxy of sedimentation rates and it reveals that the sediments discharged from the Gaoping River were mainly deposited on the flank of the GSC, the Lower Fangliao Basin, and along the levee system of the Lower Reach of GSC and its extension to the north terminus of the Manila Trench.…”

Section: Spatial Distribution Of Excess 210 Pb Inventorymentioning

confidence: 99%

See 3 more Smart Citations

Sedimentological characteristics and seafloor failure offshore SW Taiwan

Hsu

et al. 2018

Terr. Atmos. Ocean. Sci.

View full text Add to dashboard Cite

In this study, analysis results reveal two main deposition zones are located at the flank of upper Gaoping Submarine Canyon and Lower Fangliao Basin offshore SW Taiwan. The non-event related sediments deposited in past 150 years (i.e., 632 Mt km -2 ) was delivered and transported from Gaoping River by suspension process with tides and coastal currents and gradually spread out offshore. Meanwhile, the total mass of accumulation sediments is 1922 Mt km -2 , accounting for 40% Gaoping River's sediment load and suggesting that the deposition process is mainly controlled by natural hazards. Sedimentation rates in much of the study area, except in the main deposition zones, are less than 0.5 cm yr -1 (5 m kyr -1 ). Compared with the studies at the instability seafloor caused by high sedimentation rates (~30 m kyr -1 ), the offshore southwestern Taiwan is relatively stable. In this study, we also discovered a series of sediment waves located on the upper continental slope between Gaoping and Fangliao Submarine Canyons, which is related to the creeping process on seafloor. In summary, our results reveal the fluid activities, existence of weak layers and earthquake triggering are potential factors which might induced seafloor failures offshore southwestern Taiwan.

show abstract

Section: Spatial Distribution Of Excess 210 Pb Inventorymentioning

confidence: 61%

Section: Study Area and Backgroundmentioning

confidence: 99%

Section: Pb Profilesmentioning

confidence: 99%

Section: Spatial Distribution Of Excess 210 Pb Inventorymentioning

confidence: 99%

See 2 more Smart Citations

Sedimentological characteristics and seafloor failure offshore SW Taiwan

Hsu

et al. 2018

Terr. Atmos. Ocean. Sci.

View full text Add to dashboard Cite

show abstract

“…Connecting to the Kaoping River in SW Taiwan (Fig. 1), the Kaoping submarine canyon is a main sediment dispersal system; lots of sediments have been transported to the offshore area of SW Taiwan (Huh et al 2009;Yu et al 2009). Based on MCS (multi-channel seismic reflection) profiles, there is a wide distribution of BSR (Bottom Simulating Reflector due to the reverse acoustic impedance) in the offshore area of SW Taiwan, suggesting enormous gas hydrate deposits may exist beneath the seabed off SW Taiwan ( Fig.…”

Section: Geological Backgroundmentioning

confidence: 99%

Fangliao Slide — a large slope failure in the upper Kaoping Slope off southwest Taiwan

Chen

Tsai²,

Hsu³

et al. 2018

Terr. Atmos. Ocean. Sci.

View full text Add to dashboard Cite

Based on seismic reflection profiles and multi-beam bathymetric data, a large submarine landslide named Fangliao Slide is mapped for the first time off SW Taiwan. The Fangliao Slide occurred on the continental slope to the west of the Fangliao Canyon at water depths between 420 and 900 m. The seafloor of the Fangliao Slide has a gentle slope angle (~1 -2°). The landslide covers an area of ~15 km length and ~10 km width and a volume of ~26 km 3 . The headwall of the landslide has ~30 m vertical offset at the southern flank of mud diapir MD7-1, and the sidewalls are bounded by fault A in the west and faults C and D in the east. The sliding area is composed of five bathymetric terraces, indicating that the slope failures have occurred several times. The Fangliao Slide can be divided into an upper domain and a lower domain, separated at the water depth of ~600 m where the gas hydrate off SW Taiwan becomes dissociate. The initial slope failure of the Fangliao Slide was probably linked to mud diapirism of MD7-1 and the slope failure in the lower domain was probably augmented by the gas hydrate dissociation. The seafloor morphology in the lower domain is therefore more corrugated than in the upper domain.

show abstract

Arc–Continent Collision in the Ordovician of Western Ireland: Stratigraphic, Structural and Metamorphic Evolution

Ryan

Dewey

2011

Frontiers in Earth Sciences

View full text Add to dashboard Cite

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

Cited by 82 publications

References 19 publications

Sedimentological characteristics and seafloor failure offshore SW Taiwan

Sedimentological characteristics and seafloor failure offshore SW Taiwan

Fangliao Slide — a large slope failure in the upper Kaoping Slope off southwest Taiwan

Arc–Continent Collision in the Ordovician of Western Ireland: Stratigraphic, Structural and Metamorphic Evolution

Contact Info

Product

Resources

About