TY - JOUR
T1 - Stratigraphic modeling of the Western Taiwan foreland basin
T2 - Sediment flux from a growing mountain range and tectonic implications
AU - Nagel, Stefan
AU - Granjeon, Didier
AU - Willett, Sean
AU - Lin, Andrew Tien Shun
AU - Castelltort, Sébastien
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/9
Y1 - 2018/9
N2 - Sediment flux signals from source to sink in foreland basins preserve a record of tectonics, sea level and climate through erosion and sedimentation. However, longitudinal sediment transport often occurs in foreland basins, thus removing part of the orogenic material flux from foreland basin records. Here we use mass balance calculation and stratigraphic simulations of sediment fluxes for the Taiwan orogen to provide an order of magnitude estimate of how much orogenic material may bypass a foreland basin. Our results indicate a significant, potentially more than 50%, mismatch between sediment volume currently preserved in the basin and the amount of material presumably eroded from the orogen since the onset of collision in Taiwan. This suggests either a significant overestimation of average erosion rates over the period concerned with orogenic development of Taiwan, or it supports previous paleogeographic work suggesting that longitudinal sediment transport in the paleo-Taiwan Strait served as a major bypass conduit of importance for the establishment of a steady state orogen. We identify candidate submarine topography in the South China Sea that may preserve Taiwan's missing erosional mass.
AB - Sediment flux signals from source to sink in foreland basins preserve a record of tectonics, sea level and climate through erosion and sedimentation. However, longitudinal sediment transport often occurs in foreland basins, thus removing part of the orogenic material flux from foreland basin records. Here we use mass balance calculation and stratigraphic simulations of sediment fluxes for the Taiwan orogen to provide an order of magnitude estimate of how much orogenic material may bypass a foreland basin. Our results indicate a significant, potentially more than 50%, mismatch between sediment volume currently preserved in the basin and the amount of material presumably eroded from the orogen since the onset of collision in Taiwan. This suggests either a significant overestimation of average erosion rates over the period concerned with orogenic development of Taiwan, or it supports previous paleogeographic work suggesting that longitudinal sediment transport in the paleo-Taiwan Strait served as a major bypass conduit of importance for the establishment of a steady state orogen. We identify candidate submarine topography in the South China Sea that may preserve Taiwan's missing erosional mass.
KW - Arc-continent collision
KW - Erosion
KW - Foreland basin
KW - Sedimentation
KW - Stratigraphic modeling
KW - Taiwan
KW - Tectonic sedimentology
UR - http://www.scopus.com/inward/record.url?scp=85048729380&partnerID=8YFLogxK
U2 - 10.1016/j.marpetgeo.2018.05.034
DO - 10.1016/j.marpetgeo.2018.05.034
M3 - 期刊論文
AN - SCOPUS:85048729380
SN - 0264-8172
VL - 96
SP - 331
EP - 347
JO - Marine and Petroleum Geology
JF - Marine and Petroleum Geology
ER -