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Weber, Michael E; Wiedicke-Hombach, Michael; Riech, Volkher; Erlenkeuser, Helmut (1995): Geochemistry and physics on sediment cores from the Peru Basin. PANGAEA, https://doi.org/10.1594/PANGAEA.761570, Supplement to: Weber, ME et al. (1995): Carbonate preservation history in the Peru Basin: Paleoceanographic implications. Paleoceanography, 10(4), 775-800, https://doi.org/10.1029/95PA01566

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Abstract:
We studied preservation/dissolution cycles and paleoproductivity in eight sediment cores from the Peru Basin south of the highly productive surface waters of the eastern equatorial Pacific. Stratigraphy is based on stable oxygen isotopes and on combined magnetostratigraphy and biostratigraphy. Sediment cores which span the last 8 m.y., were retrieved during cruise 79 with RV SONNE close to the carbonate compensation depth (CCD). In general, sediments show Pacific-type carbonate cycles. We interpret a pronounced carbonate peak between 6 and 7 Ma as the result of a western and northern extension of the highly productive Peru Current. Decreased carbonate contents from the late Miocene to the late Pliocene might be associated with a slow contraction of the latitudinal extent of the high-productivity belt north of the study areas. During the Pliocene, carbonate variations showed 400 kyr cycles indicating the growth and decay of ice sheets, which should have been associated with pulsations of the Antarctic ice cap. An abrupt collapse of the carbonate system occurred at 2.4 Ma. Higher frequency variations of the carbonate record indicate the major increase of the northern hemisphere glaciation. During the Quaternary, carbonate fluxes are high during glacials and low during interglacials. Large amplitude variations with long broad minima and maxima, associated with small migrations of the lysocline and the CCD (< 200 m), are indicative of the preservation/dissolution history in the Peru Basin. During the early Pleistocene, climatic forcing by the 41 kyr obliquity cycle is not observed in the carbonate record. During the last 800 kyr, variability in the carbonate record was dominated by the 100 kyr eccentricity cycle. Fluxes of biogenic material (calcium carbonate, organic carbon, opal, and barium) were greatest during glacials, which imply higher productivity and export production of the Peru Current during cold climatic periods. Dissolution was greatest during interglacials as inferred from the relatively poor preservation of planktonic foraminifera and from the low accumulation rate of carbonate. After the Mid-Brunhes Event (400 ka), we observe a plateaulike shift to enhanced dissolution and to intensified productivity.
Coverage:
Median Latitude: -7.477895 * Median Longitude: -90.614888 * South-bound Latitude: -8.781700 * West-bound Longitude: -90.917000 * North-bound Latitude: -6.463300 * East-bound Longitude: -90.297500
Date/Time Start: 1992-04-25T00:00:00 * Date/Time End: 1992-05-29T00:00:00
Event(s):
SO79_1KG (GIK15555-1) * Latitude: -6.463300 * Longitude: -90.399800 * Date/Time: 1992-04-25T00:00:00 * Elevation: -4119.0 m * Recovery: 0.55 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Method/Device: Box corer (Reineck) (BCR) * Comment: GPS, Mn nodules
SO79_5MC * Latitude: -7.103200 * Longitude: -90.795700 * Date/Time: 1992-04-28T00:00:00 * Elevation: -4168.0 m * Recovery: 0.32 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Method/Device: MultiCorer (MUC) * Comment: GPS,
SO79_6KL * Latitude: -6.751700 * Longitude: -90.816800 * Date/Time: 1992-04-28T00:00:00 * Elevation: -4242.0 m * Recovery: 8.18 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Method/Device: Piston corer (BGR type) (KL) * Comment: GPS,
Size:
182 datasets

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Datasets listed in this publication series

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  1. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-1KG. https://doi.org/10.1594/PANGAEA.351636
  2. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-1KG. https://doi.org/10.1594/PANGAEA.351491
  3. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-1KG. https://doi.org/10.1594/PANGAEA.354324
  4. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-5MC. https://doi.org/10.1594/PANGAEA.351649
  5. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-5MC. https://doi.org/10.1594/PANGAEA.351498
  6. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-6KL. https://doi.org/10.1594/PANGAEA.351652
  7. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-6KL. https://doi.org/10.1594/PANGAEA.351501
  8. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-6KL. https://doi.org/10.1594/PANGAEA.354334
  9. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-9KL. https://doi.org/10.1594/PANGAEA.351662
  10. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-9KL. https://doi.org/10.1594/PANGAEA.132169
  11. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-9KL. https://doi.org/10.1594/PANGAEA.351467
  12. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-9KL. https://doi.org/10.1594/PANGAEA.354340
  13. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-9SL. https://doi.org/10.1594/PANGAEA.351468
  14. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-9SL. https://doi.org/10.1594/PANGAEA.354341
  15. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-10KG. https://doi.org/10.1594/PANGAEA.351607
  16. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-10KG. https://doi.org/10.1594/PANGAEA.351471
  17. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-10KG. https://doi.org/10.1594/PANGAEA.352515
  18. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-11MC. https://doi.org/10.1594/PANGAEA.351610
  19. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-11MC. https://doi.org/10.1594/PANGAEA.351474
  20. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-11MC. https://doi.org/10.1594/PANGAEA.352518
  21. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-15BL. https://doi.org/10.1594/PANGAEA.351627
  22. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-25KG. https://doi.org/10.1594/PANGAEA.351637
  23. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-25KG. https://doi.org/10.1594/PANGAEA.132159
  24. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-25KG. https://doi.org/10.1594/PANGAEA.351462
  25. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-25KG. https://doi.org/10.1594/PANGAEA.351506
  26. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-25KG. https://doi.org/10.1594/PANGAEA.354325
  27. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-26KL. https://doi.org/10.1594/PANGAEA.351638
  28. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-26KL. https://doi.org/10.1594/PANGAEA.132160
  29. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-26KL. https://doi.org/10.1594/PANGAEA.351463
  30. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-26KL. https://doi.org/10.1594/PANGAEA.351493
  31. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-26KL. https://doi.org/10.1594/PANGAEA.354326
  32. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-26SL. https://doi.org/10.1594/PANGAEA.351670
  33. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Organic carbon content sediment core SO79-26SL. https://doi.org/10.1594/PANGAEA.55957
  34. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-26SL. https://doi.org/10.1594/PANGAEA.354327
  35. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-31MC. https://doi.org/10.1594/PANGAEA.351639
  36. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-31MC. https://doi.org/10.1594/PANGAEA.354328
  37. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-33KL. https://doi.org/10.1594/PANGAEA.351640
  38. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-46KG. https://doi.org/10.1594/PANGAEA.351641
  39. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-46KG. https://doi.org/10.1594/PANGAEA.132161
  40. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-46KG. https://doi.org/10.1594/PANGAEA.351494
  41. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-47MC. https://doi.org/10.1594/PANGAEA.351642
  42. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-47MC. https://doi.org/10.1594/PANGAEA.351495
  43. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-48KL. https://doi.org/10.1594/PANGAEA.351643
  44. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-48KL. https://doi.org/10.1594/PANGAEA.354329
  45. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-52KG. https://doi.org/10.1594/PANGAEA.351644
  46. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-52KG. https://doi.org/10.1594/PANGAEA.132162
  47. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-53KL. https://doi.org/10.1594/PANGAEA.351645
  48. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-53KL. https://doi.org/10.1594/PANGAEA.132163
  49. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-53KL. https://doi.org/10.1594/PANGAEA.351464
  50. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-53KL. https://doi.org/10.1594/PANGAEA.354330
  51. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-57MC. https://doi.org/10.1594/PANGAEA.351646
  52. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-57MC. https://doi.org/10.1594/PANGAEA.351496
  53. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-57MC. https://doi.org/10.1594/PANGAEA.354331
  54. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-58KL. https://doi.org/10.1594/PANGAEA.351647
  55. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-58KL. https://doi.org/10.1594/PANGAEA.351497
  56. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-58KL. https://doi.org/10.1594/PANGAEA.354332
  57. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-59KG. https://doi.org/10.1594/PANGAEA.351648
  58. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-59KG. https://doi.org/10.1594/PANGAEA.354333
  59. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-63KG. https://doi.org/10.1594/PANGAEA.351650
  60. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-63KG. https://doi.org/10.1594/PANGAEA.132164
  61. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-63KG. https://doi.org/10.1594/PANGAEA.351499
  62. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-64KA. https://doi.org/10.1594/PANGAEA.351651
  63. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-64KA. https://doi.org/10.1594/PANGAEA.351500
  64. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-70MC. https://doi.org/10.1594/PANGAEA.351653
  65. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-71KL. https://doi.org/10.1594/PANGAEA.351654
  66. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-74KG. https://doi.org/10.1594/PANGAEA.351655
  67. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-74KG. https://doi.org/10.1594/PANGAEA.132165
  68. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-74KG. https://doi.org/10.1594/PANGAEA.351502
  69. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-74KG. https://doi.org/10.1594/PANGAEA.354335
  70. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-75KL. https://doi.org/10.1594/PANGAEA.351656
  71. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-75KL. https://doi.org/10.1594/PANGAEA.354336
  72. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-76MC. https://doi.org/10.1594/PANGAEA.351657
  73. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-76MC. https://doi.org/10.1594/PANGAEA.132166
  74. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-76MC. https://doi.org/10.1594/PANGAEA.351465
  75. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-76MC. https://doi.org/10.1594/PANGAEA.351503
  76. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-76MC. https://doi.org/10.1594/PANGAEA.354337
  77. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Age model of sediment core SO79-77KL. https://doi.pangaea.de/10.1594/PANGAEA.52709
  78. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-77KL. https://doi.org/10.1594/PANGAEA.351658
  79. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): δ¹⁸O isotope ratio measured on planktic foraminifera from sediment core SO79-77KL. https://doi.pangaea.de/10.1594/PANGAEA.52710
  80. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-77KL. https://doi.org/10.1594/PANGAEA.132167
  81. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-77KL. https://doi.org/10.1594/PANGAEA.351466
  82. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-77KL. https://doi.org/10.1594/PANGAEA.351504
  83. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-77KL. https://doi.org/10.1594/PANGAEA.354338
  84. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-81KG. https://doi.org/10.1594/PANGAEA.351659
  85. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-81KG. https://doi.org/10.1594/PANGAEA.132168
  86. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-81KG. https://doi.org/10.1594/PANGAEA.351505
  87. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-82KL. https://doi.org/10.1594/PANGAEA.351660
  88. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-83MC. https://doi.org/10.1594/PANGAEA.354339
  89. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-85KL. https://doi.org/10.1594/PANGAEA.351661
  90. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-100KA. https://doi.org/10.1594/PANGAEA.351604
  91. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-100KA. https://doi.org/10.1594/PANGAEA.351469
  92. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-100KA. https://doi.org/10.1594/PANGAEA.352494
  93. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-106KG. https://doi.org/10.1594/PANGAEA.351605
  94. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-106KG. https://doi.org/10.1594/PANGAEA.132143
  95. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-106KG. https://doi.org/10.1594/PANGAEA.351447
  96. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Total organic carbon content of sediment core SO79-106KG. https://doi.org/10.1594/PANGAEA.351470
  97. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-106KG. https://doi.org/10.1594/PANGAEA.352509
  98. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-108KL. https://doi.org/10.1594/PANGAEA.351606
  99. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-108KL. https://doi.org/10.1594/PANGAEA.132144
  100. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Shear strength measured on sediment core SO79-108KL. https://doi.org/10.1594/PANGAEA.351456

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