Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Karpoff, Anne Marie (1992): Mineralogy and chemical composition of ODP Sites 129-800 and 129-801 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.778446, Supplement to: Karpoff, AM (1992): Cenozoic and Mesozoic sediments from the Pigafetta Basin, Leg 129, Sites 800 and 801: Mineralogical and geochemical trends of the deposits overlying the oldest oceanic crust. In: Larson, RL; Lancelot, Y; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 129, 3-30, https://doi.org/10.2973/odp.proc.sr.129.110.1992

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Sites 800 and 801 in the Pigafetta Basin allow the sedimentary history over the oldest remaining Pacific oceanic crust to be established. Six major deposition stages and events are defined by the main lithologic units from both sites. Mineralogical and chemical investigations were run on a large set of samples from these units. The data enable the evolution of the sediments and their depositional environments to be characterized in relation to the paleolatitudinal motion of the sites. The upper part of the basaltic crust at Site 801 displays a complex hydrothermal and alteration evolution expressed particularly by an ochre siliceous deposit comparable to that found in the Cyprus ophiolite. The oldest sedimentary cover at Site 801 was formed during the Callovian-Bathonian (stage 1) with red basal siliceous and metalliferous sediments similar to those found in supraophiolite sequences, and formed near an active ridge axis in an open ocean. Biosiliceous sedimentation prevailed throughout the Oxfordian to Campanian, with rare incursions of calcareous input during the middle Cretaceous (stages 2, 4, and 5).
The biosiliceous sedimentation was drastically interrupted during the Aptian-Albian by thick volcaniclastic turbidite deposits (stage 3). The volcanogenic phases are pervasively altered and the successive secondary mineral parageneses (with smectites, celadonite, clinoptilolite, phillipsite, analcime, calcite, and quartz) define a "mineral stratigraphy" within these deposits. From this mineral stratigraphy, a similar lithologic layer is defined at the top of the Site 800 turbidite unit and the bottom of the Site 801 turbidite unit. Then, the two sites appear to have been located at the same distal distance from a volcanic source (hotspot). They crossed this locality, at about 10°S, at different times (latest Aptian for Site 800, middle Albian for Site 801).
The Cretaceous siliceous sedimentation stopped during the late Campanian and was followed by deposition of Cenozoic pelagic red clay (stage 6). This deep-sea facies, which formed below the carbonate compensation depth, contains variable zeolite authigenesis in relation to the age of deposition, and records the global middle Cenozoic hiatus events. At the surface, the red clay from this part of the Pacific shows a greater detrital component than its equivalents from the central Pacific deep basins.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 20.272766 * Median Longitude: 154.353502 * South-bound Latitude: 18.642000 * West-bound Longitude: 152.322900 * North-bound Latitude: 21.923000 * East-bound Longitude: 156.359800
Date/Time Start: 1989-11-26T02:45:00 * Date/Time End: 1990-01-16T07:15:00
Event(s):
129-800A * Latitude: 21.923000 * Longitude: 152.322900 * Date/Time Start: 1989-11-26T02:45:00 * Date/Time End: 1989-12-05T20:27:00 * Elevation: -5697.0 m * Penetration: 544.4 m * Recovery: 150.73 m * Location: North Pacific Ocean * Campaign: Leg129 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 61 core; 544.4 m cored; 0 m drilled; 27.7 % recovery
129-801A * Latitude: 18.642800 * Longitude: 156.359500 * Date/Time Start: 1989-12-06T17:15:00 * Date/Time End: 1989-12-09T17:00:00 * Elevation: -5685.0 m * Penetration: 194 m * Recovery: 31.49 m * Location: North Pacific Ocean * Campaign: Leg129 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 186 m cored; 0 m drilled; 16.9 % recovery
129-801B * Latitude: 18.642000 * Longitude: 156.359700 * Date/Time Start: 1989-12-09T17:00:00 * Date/Time End: 1989-12-17T01:15:00 * Elevation: -5685.0 m * Penetration: 511.2 m * Recovery: 59.17 m * Location: North Pacific Ocean * Campaign: Leg129 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 44 cores; 317.2 m cored; 0 m drilled; 18.7 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
11 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this publication series

  1. Karpoff, AM (1992): (Table 6) Mineralogical composition of the fine fraction of Cretaceous volcaniclastic turbidites from ODP Hole 129-800A and Site 129-801. https://doi.org/10.1594/PANGAEA.778433
  2. Karpoff, AM (1992): (Table 5) Mineralogical composition of the fine fraction of Mesozoic siliceous biogenic deposits from ODP Holes 129-800A and 129-801B. https://doi.org/10.1594/PANGAEA.778429
  3. Karpoff, AM (1992): (Table 3) Bulk mineralogical composition of the sediments from ODP Hole 129-800A. https://doi.org/10.1594/PANGAEA.778425
  4. Karpoff, AM (1992): (Table 7) Mineralogical composition of the fine fraction of Cenozoic pelagic red clay from ODP Holes 129-800 and 129-801A. https://doi.org/10.1594/PANGAEA.778435
  5. Karpoff, AM (1992): (Table 8) Major element composition of bulk samples of sediments from ODP Hole 129-800A. https://doi.org/10.1594/PANGAEA.778438
  6. Karpoff, AM (1992): (Table 1) Sample description of ODP Hole 129-800A. https://doi.org/10.1594/PANGAEA.778422
  7. Karpoff, AM (1992): (Table 9) Trace element composition of bulk samples of sediments from ODP Hole 129-800A. https://doi.org/10.1594/PANGAEA.778440
  8. Karpoff, AM (1992): (Table 4) Bulk mineralogical composition of the sediments from ODP Site 129-801. https://doi.org/10.1594/PANGAEA.778426
  9. Karpoff, AM (1992): (Table 10) Major element composition of bulk samples of sediments from ODP Site 129-801. https://doi.org/10.1594/PANGAEA.778441
  10. Karpoff, AM (1992): (Table 2) Sample description of ODP Site 129-801. https://doi.org/10.1594/PANGAEA.778423
  11. Karpoff, AM (1992): (Table 11) Trace element composition of bulk samples of sediments from ODP Site 129-801. https://doi.org/10.1594/PANGAEA.778444