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Damuth, John E; Balsam, William L (2003): Calcium carbonate content, brightness and color reflectance of ODP Site 188-165 and Hole 188-1167A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.780477, Supplement to: Damuth, JE; Balsam, WL (2003): Data report: Spectral data from Sites 1165 and 1167 including the HiRISC section from Hole 1165B. In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-49, https://doi.org/10.2973/odp.proc.sr.188.003.2003

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Abstract:
We measured and analyzed near-ultraviolet/visible/near-infrared spectral data from core samples recovered from Ocean Drilling Program Sites 1165 (Wild Drift) and 1167 (Prydz Channel Trough Mouth Fan) using our laboratory-grade spectrophotometer to help determine temporal mineralogical changes downhole. These measurements included closely spaced (~10 cm) samples for the section from 0 to 54.17 meters below seafloor (mbsf) in Hole 1165B, which is the Pliocene-Pleistocene age interval being studied in detail by the High-Resolution Integrated Stratigraphy Committee (HiRISC). We also determined calcium carbonate content for all samples in this HiRISC interval. The Pleistocene and uppermost Pliocene sediments (0-10 mbsf) show wide carbonate fluctuations ranging from 0 to 37 wt%; however, below 10 mbsf, the carbonate content is generally zero. To examine the major components that contribute to spectral variability in the holes, the first-derivative values for all samples from Sites 1165 and 1167 were assembled into a single matrix and the matrix was then factor analyzed after being subject to a varimax rotation. For Sites 1165 and 1167, factoring first-derivative values from 255 to 745 nm produced the most easily interpretable results, with five factors that explain ~92.5% of the total variance in the data set.
Factor 1 incorporates both goethite and chlorite, meaning that scores for this factor will be high where these two minerals covary.
Factor 2 is interpreted as organic matter.
Factor 3 appears to be a combination of clay minerals, possibly montmorillonite and illite.
Factor 4 is interpreted as the mineral maghemite, a polymorph of hematite.
Factor 5 is the mineral hematite.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -65.053138 * Median Longitude: 68.907321 * South-bound Latitude: -66.400180 * West-bound Longitude: 67.218733 * North-bound Latitude: -64.379583 * East-bound Longitude: 72.284180
Date/Time Start: 2000-01-28T00:00:00 * Date/Time End: 2000-02-28T08:25:00
Event(s):
188-1165 * Latitude: -64.379583 * Longitude: 67.218733 * Date/Time Start: 2000-01-28T00:00:00 * Date/Time End: 2000-02-14T00:00:00 * Elevation: -3537.4 m * Penetration: 1686.7 m * Recovery: 708.7 m * Location: Indian Ocean * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 112 cores; 1023.3 m cored; 663.4 m drilled; 69.3% recovery
188-1165B * Latitude: -64.379650 * Longitude: 67.219050 * Date/Time Start: 2000-01-29T05:15:00 * Date/Time End: 2000-02-04T05:30:00 * Elevation: -3537.6 m * Penetration: 682.2 m * Recovery: 434.04 m * Location: Indian Ocean * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 76 cores; 682.2 m cored; 0 m drilled; 63.6 % recovery
188-1167A * Latitude: -66.400180 * Longitude: 72.284180 * Date/Time Start: 2000-02-22T22:00:00 * Date/Time End: 2000-02-28T08:25:00 * Elevation: -1639.9 m * Penetration: 447.5 m * Recovery: 191.33 m * Location: Prydz Bay * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 49 cores; 447.5 m cored; 0 m drilled; 42.8 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets

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Datasets listed in this publication series

  1. Damuth, JE; Balsam, WL (2003): (Table T2) Brightness values of ODP Hole 188-1165B. https://doi.org/10.1594/PANGAEA.780475
  2. Damuth, JE; Balsam, WL (2003): (Table T1) Calcium carbonate content, brightness and reflectance for discrete color bands in ODP Site 188-1165 and Hole 188-1167A. https://doi.org/10.1594/PANGAEA.780474
  3. Damuth, JE; Balsam, WL (2003): (Table AT1) Color reflectance at 10 nm intervals of ODP Site 188-1165 and Hole 188-1167A. https://doi.org/10.1594/PANGAEA.780476