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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_100KA * Latitude: -6.930000 * Longitude: -90.684500 * Date/Time: 1992-05-12T00:00:00 * Elevation: -4312.0 m * Recovery: 5.7 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Device: Kasten corer (KAL) * Comment: GPS, Mn nodules
SO79_106KG (GIK15564-1) * Latitude: -7.032700 * Longitude: -90.648800 * Date/Time: 1992-05-13T00:00:00 * Elevation: -4025.0 m * Recovery: 0.45 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Device: Box corer (Reineck) (BCR) * Comment: GPS, Mn nodules
SO79_108KL * Latitude: -7.032300 * Longitude: -90.648500 * Date/Time: 1992-05-13T00:00:00 * Elevation: -4031.0 m * Recovery: 13.64 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Device: Piston corer (BGR type) (KL) * Comment: GPS,
Size:
182 datasets

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Datasets listed in this Collection

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  1. 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
  2. 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
  3. 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
  4. 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
  5. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-108SL. https://doi.org/10.1594/PANGAEA.351669
  6. 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
  7. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-117KG. https://doi.org/10.1594/PANGAEA.351608
  8. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-119KL. https://doi.org/10.1594/PANGAEA.351609
  9. 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
  10. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-120MC. https://doi.org/10.1594/PANGAEA.351611
  11. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-122KG. https://doi.org/10.1594/PANGAEA.351612
  12. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-123KL. https://doi.org/10.1594/PANGAEA.351613
  13. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-125MC. https://doi.org/10.1594/PANGAEA.351614
  14. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-129KG. https://doi.org/10.1594/PANGAEA.351615
  15. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-130KL. https://doi.org/10.1594/PANGAEA.351616
  16. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-136KL. https://doi.org/10.1594/PANGAEA.351617
  17. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-137MC. https://doi.org/10.1594/PANGAEA.351618
  18. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-140KG. https://doi.org/10.1594/PANGAEA.351619
  19. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-141KL. https://doi.org/10.1594/PANGAEA.351620
  20. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-142KG. https://doi.org/10.1594/PANGAEA.351621
  21. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-147KL. https://doi.org/10.1594/PANGAEA.351622
  22. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-151KG. https://doi.pangaea.de/10.1594/PANGAEA.351623
  23. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-153KG. https://doi.org/10.1594/PANGAEA.351624
  24. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-154KL. https://doi.org/10.1594/PANGAEA.351625
  25. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-159KG. https://doi.org/10.1594/PANGAEA.351626
  26. 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
  27. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-160KA. https://doi.org/10.1594/PANGAEA.351628
  28. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-162MC. https://doi.org/10.1594/PANGAEA.351629
  29. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-164KL. https://doi.org/10.1594/PANGAEA.351630
  30. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-167KG. https://doi.org/10.1594/PANGAEA.351631
  31. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-169KL. https://doi.org/10.1594/PANGAEA.351632
  32. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-170KG. https://doi.org/10.1594/PANGAEA.351633
  33. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-173KG. https://doi.org/10.1594/PANGAEA.351634
  34. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Calcium carbonate content of sediment core SO79-175KG. https://doi.org/10.1594/PANGAEA.351635
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  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): Calcium carbonate content of sediment core SO79-52KG. https://doi.org/10.1594/PANGAEA.351644
  45. 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
  46. 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
  47. 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
  48. 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
  49. 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
  50. 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
  51. 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
  52. 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
  53. 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
  54. 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
  55. 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
  56. 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
  57. 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
  58. 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
  59. 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
  60. 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
  61. 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
  62. 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
  63. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-106KG. https://doi.org/10.1594/PANGAEA.132143
  64. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-108KL. https://doi.org/10.1594/PANGAEA.132144
  65. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-119KL. https://doi.org/10.1594/PANGAEA.132145
  66. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-120MC. https://doi.org/10.1594/PANGAEA.132146
  67. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-122KG. https://doi.org/10.1594/PANGAEA.132147
  68. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-123KL. https://doi.org/10.1594/PANGAEA.132148
  69. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-129KG. https://doi.org/10.1594/PANGAEA.132149
  70. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-140KG. https://doi.org/10.1594/PANGAEA.132150
  71. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-141KL. https://doi.org/10.1594/PANGAEA.132151
  72. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-142KG. https://doi.org/10.1594/PANGAEA.132152
  73. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-153KG. https://doi.org/10.1594/PANGAEA.132153
  74. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-164KL. https://doi.org/10.1594/PANGAEA.132154
  75. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-167KG. https://doi.org/10.1594/PANGAEA.132155
  76. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-169KL. https://doi.org/10.1594/PANGAEA.132156
  77. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-170KG. https://doi.org/10.1594/PANGAEA.132157
  78. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-175KG. https://doi.org/10.1594/PANGAEA.132158
  79. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-25KG. https://doi.org/10.1594/PANGAEA.132159
  80. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-26KL. https://doi.org/10.1594/PANGAEA.132160
  81. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-46KG. https://doi.org/10.1594/PANGAEA.132161
  82. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-52KG. https://doi.org/10.1594/PANGAEA.132162
  83. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-53KL. https://doi.org/10.1594/PANGAEA.132163
  84. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-63KG. https://doi.org/10.1594/PANGAEA.132164
  85. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-74KG. https://doi.org/10.1594/PANGAEA.132165
  86. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-76MC. https://doi.org/10.1594/PANGAEA.132166
  87. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-77KL. https://doi.org/10.1594/PANGAEA.132167
  88. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-81KG. https://doi.org/10.1594/PANGAEA.132168
  89. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Geochemistry on sediment core SO79-9KL. https://doi.org/10.1594/PANGAEA.132169
  90. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Organic carbon content sediment core SO79-26SL. https://doi.org/10.1594/PANGAEA.55957
  91. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-100KA. https://doi.org/10.1594/PANGAEA.352494
  92. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-106KG. https://doi.org/10.1594/PANGAEA.352509
  93. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-108KL. https://doi.org/10.1594/PANGAEA.352511
  94. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-108KL. https://doi.org/10.1594/PANGAEA.354309
  95. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-108SL. https://doi.org/10.1594/PANGAEA.352513
  96. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-10KG. https://doi.org/10.1594/PANGAEA.352515
  97. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-119KL. https://doi.org/10.1594/PANGAEA.352517
  98. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-11MC. https://doi.org/10.1594/PANGAEA.352518
  99. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-122KG. https://doi.org/10.1594/PANGAEA.352520
  100. Weber, ME; Wiedicke-Hombach, M; Riech, V et al. (1995): Physical properties of sediment core SO79-130KL. https://doi.org/10.1594/PANGAEA.354311

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