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Glass, B P; Kent, Dennis V; Schneider, David A; Tauxe, Lisa (1991): Distribution of Ivory Coast microtektite layer [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.723140, Supplement to: Glass, BP et al. (1991): Ivory Coast microtektite strewn field: description and relation to the Jaramillo geomagnetic event. Earth and Planetary Science Letters, 107(1), 182-196, https://doi.org/10.1016/0012-821X(91)90054-L

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Abstract:
During the present study the Ivory Coast microtektite layer was found in cores from five equatorial Atlantic sites, bringing the total number of Ivory Coast microtektite-bearing cores to eleven. The strewn field appears to be restricted to between 9°N and 12°S latitude. There is a general increase in the concentration of microtektites towards the Bosumtwi crater, which is generally thought to be the source of the Ivory Coast tektites. The relationship between the onset of the Jaramillo subchron and the Ivory Coast microtektite layer has been investigated in six cores. A plot of the difference in depth between the base of the Jaramillo subchron and the microtektite layer versus sediment accumulation rate was used to determine the average post-depositional remanent magnetization (PDRM) acquisition depth and the age difference between the onset of the Jaramillo subchron and the deposition of the microtektites. Assuming that the PDRM acquisition depth does not vary with sediment accumulation rate, we find that the average PDRM acquisition depth is 7 cm and that the microtektites were deposited approximately 8 ky after the onset of the Jaramillo subchron. This indicates that the impact responsible for the Ivory Coast tektites and microtektites could not be causally related to the geomagnetic reversal at the base of the Jaramillo subchron.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -2.692563 * Median Longitude: -13.064888 * South-bound Latitude: -13.760000 * West-bound Longitude: -23.227500 * North-bound Latitude: 10.013500 * East-bound Longitude: -1.517000
Date/Time Start: 1968-11-03T00:00:00 * Date/Time End: 1986-04-05T17:00:00
Event(s):
108-660A * Latitude: 10.013500 * Longitude: -19.245600 * Date/Time Start: 1986-03-15T00:30:00 * Date/Time End: 1986-03-16T10:30:00 * Elevation: -4343.0 m * Penetration: 164.9 m * Recovery: 163.74 m * Location: South Atlantic Ocean * Campaign: Leg108 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 164.9 m cored; 0 m drilled; 99.3 % recovery
108-661A * Latitude: 9.446800 * Longitude: -19.386100 * Date/Time Start: 1986-03-17T19:15:00 * Date/Time End: 1986-03-20T19:15:00 * Elevation: -4023.0 m * Penetration: 296.1 m * Recovery: 234.93 m * Location: South Atlantic Ocean * Campaign: Leg108 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 296.1 m cored; 0 m drilled; 79.3 % recovery
108-664C * Latitude: 0.107300 * Longitude: -23.227500 * Date/Time Start: 1986-03-31T00:00:00 * Date/Time End: 1986-04-01T07:30:00 * Elevation: -3810.0 m * Penetration: 61.2 m * Recovery: 57.18 m * Location: South Atlantic Ocean * Campaign: Leg108 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 7 cores; 61.2 m cored; 0 m drilled; 93.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 datasets

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Datasets listed in this publication series

  1. Glass, BP; Kent, DV; Schneider, DA et al. (1991): (Table 4) Magnetostratigraphic boundaries and microtektite layer and sediment accumulation rate of ODP Site 108-664. https://doi.org/10.1594/PANGAEA.723134
  2. Glass, BP; Kent, DV; Schneider, DA et al. (1991): (Table 2) Occurrence of Jaramillo subchron in sediment cores from the equatorial Atlantic. https://doi.org/10.1594/PANGAEA.723133
  3. Glass, BP; Kent, DV; Schneider, DA et al. (1991): (Table 5) Thickness of Globorotalia menardii-rich zone in sediment cores from the equatorial Atlantic. https://doi.org/10.1594/PANGAEA.723139
  4. Glass, BP; Kent, DV; Schneider, DA et al. (1991): (Table 4) Magnetostratigraphic boundaries and microtektite layer and sediment accumulation rate of core K09-57. https://doi.org/10.1594/PANGAEA.723135
  5. Glass, BP; Kent, DV; Schneider, DA et al. (1991): (Table 4) Magnetostratigraphic boundaries and microtektite layer and sediment accumulation rate of core RC13-210. https://doi.org/10.1594/PANGAEA.723136
  6. Glass, BP; Kent, DV; Schneider, DA et al. (1991): (Table 4) Magnetostratigraphic boundaries and microtektite layer and sediment accumulation rate of core RC13-213. https://doi.org/10.1594/PANGAEA.723137
  7. Glass, BP; Kent, DV; Schneider, DA et al. (1991): (Table 4) Magnetostratigraphic boundaries and microtektite layer and sediment accumulation rate of core V27-239. https://doi.org/10.1594/PANGAEA.723138