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Speed, C D; Kroon, Dick (2000): Mineralogy, geochemistry and elemental ratios of ODP Core 171B-1049C-8X [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.788197, Supplement to: Speed, CD; Kroon, D (2000): Data report: Inorganic geochemistry and mineralogy of the Cretaceous/Tertiary boundary section in Hole 1049C. In: Kroon, D; Norris, RD; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 171B, 1-28, https://doi.org/10.2973/odp.proc.sr.171B.117.2000

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Abstract:
Inorganic geochemistry and mineralogy of Core 171B-1049C-8X, containing a Cretaceous/Tertiary boundary section, was investigated by X-ray fluorescence (XRF) and X-ray diffraction (XRD). The ages of samples analyzed stretched from the latest Maastrichtian into the Danian. XRD measurements were made using the peak height method. A reduction in low-magnesium calcite and an increase in quartz were found above the spherule layer. Substantial amounts of dolomite were noted just above the spherule layer. XRF analyses were performed using the RHSMALL program to measure the abundance of major and minor elements. Replicate analyses for each technique were performed to assess the precision of the results. The section above the spherule bed was found to be characterized by peaks in many elements, including Si, Al, Fe, and Mg, as well as the following elemental ratios: Fe/Al, Ni/Al, Zr/Rb, and Rb/Sr'. Above the spherule bed, there were significant reductions in Ca, Sr/Ca, Ti/Al, K/Al, Rb/Al, Cr/Al, Ba/Al, biogenic Ba, and excess P.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 30.142270 * Longitude: -76.112110
Date/Time Start: 1997-01-16T00:30:00 * Date/Time End: 1997-01-16T00:30:00
Event(s):
171-1049C * Latitude: 30.142270 * Longitude: -76.112110 * Date/Time: 1997-01-16T00:30:00 * Elevation: -2670.8 m * Penetration: 158.5 m * Recovery: 88.86 m * Location: Blake Nose, North Atlantic Ocean * Campaign: Leg171B * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 111.5 m cored; 47 m drilled; 79.7 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Speed, CD; Kroon, D (2000): (Table T9) Elemental abundances normalized against aluminium abundance of ODP Hole 171B-1049C sediments. https://doi.org/10.1594/PANGAEA.788195
  2. Speed, CD; Kroon, D (2000): (Table T7) Major element composition of ODP Hole 171B-1049C sediments. https://doi.org/10.1594/PANGAEA.788193
  3. Speed, CD; Kroon, D (2000): (Table T5) Major element oxide composition of ODP Hole 171B-1049C sediments. https://doi.org/10.1594/PANGAEA.788192
  4. Speed, CD; Kroon, D (2000): (Table T2) Quartz, dolomite and low-magnesium calcite abundance of ODP Hole 171B-1049C. https://doi.org/10.1594/PANGAEA.788191
  5. Speed, CD; Kroon, D (2000): (Table T8) Minor element concentration of ODP Hole 171B-1049C sediments. https://doi.org/10.1594/PANGAEA.788194
  6. Speed, CD; Kroon, D (2000): (Table T10) Elemental ratios, biogenic barium and phosphorus excess of ODP Hole 171B-1049C sediments. https://doi.org/10.1594/PANGAEA.788196