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Louda, William; Baker, Earl W (1981): Geochemistry of tetrapyrrole, carotenoid, and perylene pigments in sediments at DSDP Holes 63-467 and 63-471 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.819337, Supplement to: Louda, W; Baker, EW (1981): Geochemistry of tetrapyrrole, carotenoid, and perylene pigments in sediments from the San Miguel Gap (Site 467) and Baja California Borderland (Site 471), Deep Sea Drilling Project Leg 63. In: Yeats, RS; Haq, BU; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 63, 785-818, https://doi.org/10.2973/dsdp.proc.63.133.1981

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Abstract:
Twenty-one core samples from DSDP/IPOD Leg 63 were analyzed for products of chlorophyll diagenesis. In addition to the tetrapyrrole pigments, perylene and carotenoid pigments were isolated and identified.
The 16 core samples from the San Miguel Gap site (467) and the five from the Baja California borderland location (471) afforded the unique opportunity of examining tetrapyrrole diagenesis in clay-rich marine sediments that are very high in total organic matter.
The chelation reaction, whereby free-base porphyrins give rise to metalloporphyrins (viz., nickel), is well documented within the downhole sequence of sediments from the San Miguel Gap (Site 467). Recognition of unique arrays of highly dealkylated copper and nickel ETIO-porphyrins, exhibiting nearly identical carbonnumber homologies (viz., C-23 to C-30; mode = C-26), enabled subtraction of this component (thought to be derived from an allochthonous source) and thus permitted description of the actual in situ diagenesis of autochthonous chlorophyll derivatives.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 29.961762 * Median Longitude: -117.659738 * South-bound Latitude: 23.482200 * West-bound Longitude: -120.757800 * North-bound Latitude: 33.849500 * East-bound Longitude: -112.496300
Date/Time Start: 1978-10-10T00:00:00 * Date/Time End: 1978-11-08T00:00:00
Event(s):
63-467 * Latitude: 33.849500 * Longitude: -120.757800 * Date/Time: 1978-10-10T00:00:00 * Elevation: -2128.0 m * Penetration: 1041.5 m * Recovery: 399.1 m * Location: North Pacific/GAP * Campaign: Leg63 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 100 cores; 946.5 m cored; 38 m drilled; 42.2 % recovery
63-471 * Latitude: 23.482200 * Longitude: -112.496300 * Date/Time: 1978-11-08T00:00:00 * Elevation: -3101.0 m * Penetration: 823 m * Recovery: 348.8 m * Location: North Pacific/FAN * Campaign: Leg63 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 83 cores; 776 m cored; 28.5 m drilled; 45 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Louda, W; Baker, EW (1981): (Table 5) Normalized average 14eV mass spectra of metalloporphyrin assemblages isolated from DSDP Holes 63-467 and 63-471. https://doi.org/10.1594/PANGAEA.819336
  2. Louda, W; Baker, EW (1981): (Table 1) Sample description and tetrapyrrole pigment yields for DSDP holes 63-647 and 63-471. https://doi.org/10.1594/PANGAEA.819333
  3. Louda, W; Baker, EW (1981): (Table 2) Tetrapyrrole pigments isolated from DSDP Holes 63-467 and 63-471. https://doi.org/10.1594/PANGAEA.819334
  4. Louda, W; Baker, EW (1981): (Table 3) Normalized average 14eV mass spectra of free-base porphyrins isolated from DSDP Hole 63-467. https://doi.org/10.1594/PANGAEA.819335