Late Cenozoic uplift of southeastern Tibet

Provenance of Upper Miocene to Quaternary sediments in the Yinggehai-Song Hong Basin, South China Sea: Evidence from detrital zircon U–Pb ages

“…However, our data did not provide a valid indicator to confirm the presence provenance of the Songpan-Garze. Most studies have evidence to suggest that Red River drainage occurred by river capture and surface uplift in eastern Tibet that predated the Late Miocene (Clift et al, 2002;Clark et al, 2004Clark et al, , 2005Clift et al, 2006a;Yan et al, 2011a), which means that if the provenance of the Songpan-Garze has existed in the samples, the most likely explanation is the clastic material from the Songpan-Garze to Y-SH Basin by the contribution of input from recycled sources. The detrital zircon U-Pb ages cannot distinguish between the first-cycle and the multi-cycle zircons so that we are unable to constrain the influence of the SongpanGarze.…”

Late Miocene provenance change on the eastern margin of the Yinggehai-Song Hong Basin, South China Sea: Evidence from U–Pb dating and Hf isotope analyses of detrital zircons

“…For example, Clift and Sun (2006) suggested that the sedimentation rates in the Y-SH Basin increased sharply at the end of the Miocene. Clark et al (2005) used an initiation of the major river incisions to identify the timing of the initial uplift at 13e9 Ma and the high erosion rates between 0.23 and 0.47 mm/yr, and the result does coincide with the thermochronology data published by Xu and Kamp (2000) and Kirby et al (2002). Gong and Li (2004) found that the uplift of the Tibetan Plateau since 10 Ma has had an important influence on the climate and sedimentary environment of the South China Sea, and the thick infill of the Y-SH Basin has been supplied by paleo-Red River delta during the Late Miocene.…”

Landscape evolution of a bedrock peneplain on the southern Tibetan Plateau revealed by in situ-produced cosmogenic 10Be and 21Ne

“…Hence, these low-relief surfaces are commonly interpreted as remnants of paleo-surfaces that had originally a much larger extent (e.g. De Sitter, 1952;Clark et al, 2005). Some workers have referred to these remnant surfaces as peneplains (e.g.…”

“…In southeastern Tibet, the formation and subsequent uplift of a regional low-relief landscape was inferred from a reconstruction of the large-scale drainage system through time (Clark et al, 2004). The onset of uplift and accelerated erosion was constrained with low-temperature thermochronology at 9-13 Ma (Clark et al, 2005) and may be related to a southeast-directed flow of the lower crust (e.g. Royden et al, 1997;Schoenbohm et al, 2006).…”

“…Royden et al, 1997;Schoenbohm et al, 2006). As a response to the induced surface uplift, major rivers such as the Yangtze and Mekong have deeply incised this part of the plateau (Clark et al, 2005) and their headward incision continues to diminish the internally drained portion of the plateau (Fig. 1).…”