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Schimanski, Alexander; Stattegger, Karl (2005): Sedimentology of the Vietnam shelf. PANGAEA, https://doi.org/10.1594/PANGAEA.736780, Supplement to: Schimanski, A; Stattegger, K (2005): Deglacial and Holocene evolution of the Vietnam shelf: stratigraphy, sediments and sea-level change. Marine Geology, 214(4), 365-387, https://doi.org/10.1016/j.margeo.2004.11.001

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Abstract:
On the Vietnam Shelf more than 1000 miles of shallow high-resolution seismics were analyzed to unravel post-glacial evolution in a tropical, siliciclastic environment together with 25 sediment cores from water depths between 21 and 169 m to determine stratigraphy, distribution and style of sedimentation. Fourty-seven samples were dated with the AMS-14C technique.
The shelf was grouped into three regions: a southern part, a central part, and a northern part. On the broad Southern Shelf, sedimentation is influenced by the Mekong River, which drains into the SCS in this area. Here, incised valley fills are abundant that were cut into the late Pleistocene land surface by the Paleo-Mekong River during times of sea level lowstand. Those valleys are filled with transgressive deposits. The Holocene sedimentation rate in this low gradient accommodation-dominated depositional system is in the range of 5–10 and 25–40 cm/ky at locations sheltered from currents. The Central Shelf is narrow and the sedimentary strata are conformable. Here, numerous small mountainous rivers reach the SCS and transport large amounts of detrital sediment onto the shelf. Therefore, the Holocene sedimentation rate is high with values of 50–100 cm/ky in this supply-dominated depositional system. The broad Northern Shelf in the vicinity of the Red River Delta shows, as on the Southern Shelf, incised valleys cut into the Pleistocene land surface by paleo river channels. In this accommodation-dominated shelf area, the sedimentation rate is low with values of 5–10 cm/ky. Where applicable, we assigned the sampled deposits to different paleo-facies. The latter are related to certain intervals of water depths at their time of deposition. Comparison with the sea-level curve of (Hanebuth et al., 2000, doi:10.1126/science.288.5468.1033) indicates subsidence on the Central Shelf, which is in agreement with the high sedimentation rates in this area. In contrast, data from the Northern Shelf suggest tectonic uplift that might be related to recent tectonic movements along the Ailao Shan-Red River Fault zone. Data from the Southern Shelf are generally in agreement with the sea-level curve mentioned above.
Coverage:
Median Latitude: 13.194155 * Median Longitude: 108.922588 * South-bound Latitude: 7.003000 * West-bound Longitude: 107.914000 * North-bound Latitude: 16.740000 * East-bound Longitude: 109.561000
Date/Time Start: 1999-04-09T00:00:00 * Date/Time End: 1999-04-19T00:00:00
Event(s):
GIK18375-2 * Latitude: 7.003000 * Longitude: 107.914000 * Date/Time: 1999-04-09T00:00:00 * Elevation: -87.0 m * Recovery: 3.69 m * Location: South China Sea * Campaign: SO140A (SÜDMEER III) * Basis: Sonne * Method/Device: Vibro corer (VC)
GIK18376-2 * Latitude: 7.087000 * Longitude: 108.107000 * Date/Time: 1999-04-09T00:00:00 * Elevation: -89.0 m * Recovery: 4.77 m * Location: South China Sea * Campaign: SO140A (SÜDMEER III) * Basis: Sonne * Method/Device: Vibro corer (VC)
GIK18377-2 * Latitude: 7.178000 * Longitude: 108.338000 * Date/Time: 1999-04-09T00:00:00 * Elevation: -98.0 m * Recovery: 3.57 m * Location: South China Sea * Campaign: SO140A (SÜDMEER III) * Basis: Sonne * Method/Device: Vibro corer (VC)
Size:
65 datasets

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Datasets listed in this publication series

  1. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18375-2. https://doi.org/10.1594/PANGAEA.96967
  2. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18375-2. https://doi.org/10.1594/PANGAEA.96942
  3. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18376-2. https://doi.org/10.1594/PANGAEA.736754
  4. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18376-2. https://doi.org/10.1594/PANGAEA.96968
  5. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18376-2. https://doi.org/10.1594/PANGAEA.96943
  6. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18377-2. https://doi.org/10.1594/PANGAEA.96969
  7. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18377-2. https://doi.org/10.1594/PANGAEA.96944
  8. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18389-3. https://doi.org/10.1594/PANGAEA.736755
  9. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18389-3. https://doi.org/10.1594/PANGAEA.96970
  10. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18389-3. https://doi.org/10.1594/PANGAEA.96945
  11. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18391-2. https://doi.org/10.1594/PANGAEA.736756
  12. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18391-2. https://doi.org/10.1594/PANGAEA.96971
  13. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18391-2. https://doi.org/10.1594/PANGAEA.96946
  14. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18393-3. https://doi.org/10.1594/PANGAEA.736757
  15. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18393-3. https://doi.org/10.1594/PANGAEA.96972
  16. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18393-3. https://doi.org/10.1594/PANGAEA.96947
  17. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18396-3. https://doi.org/10.1594/PANGAEA.96973
  18. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18396-3. https://doi.org/10.1594/PANGAEA.96948
  19. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18397-2. https://doi.org/10.1594/PANGAEA.736758
  20. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18397-2. https://doi.org/10.1594/PANGAEA.96974
  21. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18397-2. https://doi.org/10.1594/PANGAEA.96949
  22. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18398-3. https://doi.org/10.1594/PANGAEA.96975
  23. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18398-3. https://doi.org/10.1594/PANGAEA.96950
  24. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18401-3. https://doi.org/10.1594/PANGAEA.736759
  25. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18401-3. https://doi.org/10.1594/PANGAEA.96976
  26. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18401-3. https://doi.org/10.1594/PANGAEA.96951
  27. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18404-3. https://doi.org/10.1594/PANGAEA.736760
  28. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18404-3. https://doi.org/10.1594/PANGAEA.96977
  29. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18404-3. https://doi.org/10.1594/PANGAEA.96952
  30. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18405-3. https://doi.org/10.1594/PANGAEA.96953
  31. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18408-3. https://doi.org/10.1594/PANGAEA.736762
  32. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18408-3. https://doi.org/10.1594/PANGAEA.96978
  33. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18408-3. https://doi.org/10.1594/PANGAEA.96954
  34. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18409-3. https://doi.org/10.1594/PANGAEA.736763
  35. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18409-3. https://doi.org/10.1594/PANGAEA.96979
  36. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18409-3. https://doi.org/10.1594/PANGAEA.96955
  37. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18414-3. https://doi.org/10.1594/PANGAEA.96980
  38. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18414-3. https://doi.org/10.1594/PANGAEA.96956
  39. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18415-2. https://doi.org/10.1594/PANGAEA.736764
  40. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18415-2. https://doi.org/10.1594/PANGAEA.96981
  41. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18415-2. https://doi.org/10.1594/PANGAEA.96957
  42. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18416-2. https://doi.org/10.1594/PANGAEA.736765
  43. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18416-2. https://doi.org/10.1594/PANGAEA.96958
  44. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18417-3. https://doi.org/10.1594/PANGAEA.736766
  45. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18417-3. https://doi.org/10.1594/PANGAEA.96983
  46. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18417-3. https://doi.org/10.1594/PANGAEA.96959
  47. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18419-3. https://doi.org/10.1594/PANGAEA.736767
  48. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18419-3. https://doi.org/10.1594/PANGAEA.96984
  49. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18419-3. https://doi.org/10.1594/PANGAEA.96960
  50. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18420-2. https://doi.org/10.1594/PANGAEA.736769
  51. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18420-2. https://doi.org/10.1594/PANGAEA.96985
  52. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18420-2. https://doi.org/10.1594/PANGAEA.96961
  53. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18422-3. https://doi.org/10.1594/PANGAEA.96986
  54. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18422-3. https://doi.org/10.1594/PANGAEA.96962
  55. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18423-2. https://doi.org/10.1594/PANGAEA.736770
  56. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18423-2. https://doi.org/10.1594/PANGAEA.96987
  57. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18423-2. https://doi.org/10.1594/PANGAEA.96963
  58. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18424-2. https://doi.org/10.1594/PANGAEA.96988
  59. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18424-2. https://doi.org/10.1594/PANGAEA.96964
  60. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18425-2. https://doi.org/10.1594/PANGAEA.96989
  61. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18425-2. https://doi.org/10.1594/PANGAEA.96965
  62. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediment core GIK18426-2. https://doi.org/10.1594/PANGAEA.736771
  63. Schimanski, A; Stattegger, K (2005): Coarse fraction analysis of core GIK18426-2. https://doi.org/10.1594/PANGAEA.96990
  64. Schimanski, A; Stattegger, K (2005): Sedimentology of core GIK18426-2. https://doi.org/10.1594/PANGAEA.96966
  65. Schimanski, A; Stattegger, K (2005): (Table 2) Age determination of sediments from the Vietnam shelf. https://doi.org/10.1594/PANGAEA.736753