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Grachev, A F; Arakelyantz, M M; Lebedev, V A; Musatov, Evgeny E; Stolbov, N M (2001): K-Ar ages of basalts from islands of the Franz Josef Land archipelago [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.746727, Supplement to: Grachev, AF et al. (2001): New K-Ar ages for basalts from Franz Josef Land. Russian Journal of Earth Sciences, 3(1), 79-82, https://doi.org/10.2205/2001ES000053

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Abstract:
New K-Ar age determinations of basalt samples from three drill holes and outcrops on the Franz Josef Land suggest that flood volcanism throughout the archipelago fits in a very narrow age interval (116±5 Ma). For 95% of the samples we studied, age scatter is within analytical uncertainty. New data on basaltic bulk-rock, trace element, and REE compositions point to mantle plume affinity for Early Cretaceous magmatism on the Franz Josef Land, which preceded the onset of seafloor spreading in the Canada Basin.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 80.688764 * Median Longitude: 55.493759 * South-bound Latitude: 80.137000 * West-bound Longitude: 47.708300 * North-bound Latitude: 81.237400 * East-bound Longitude: 64.333300
Date/Time Start: 1977-01-01T00:00:00 * Date/Time End: 1980-01-01T00:00:00
Event(s):
FJL-5534-1 * Latitude: 80.700300 * Longitude: 49.279700 * Location: George Land, Franz Josef Land
GL-5505-1A * Latitude: 80.715000 * Longitude: 49.310000 * Location: George Land, Franz Josef Land
H-5547-1 * Latitude: 80.286000 * Longitude: 52.950000 * Location: Hooker Island, Franz Josef Land
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. Grachev, AF; Arakelyantz, MM; Lebedev, VA et al. (2001): (Table 2) K-Ar age determinations in Franz Josef Land basalts. https://doi.org/10.1594/PANGAEA.746723
  2. Grachev, AF; Arakelyantz, MM; Lebedev, VA et al. (2001): (Table 2) K-Ar age determinations in Franz Josef Land basalts from Hole Hays-1. https://doi.org/10.1594/PANGAEA.746724
  3. Grachev, AF; Arakelyantz, MM; Lebedev, VA et al. (2001): (Table 2) K-Ar age determinations in Franz Josef Land basalts from Hole Nagursk-1. https://doi.org/10.1594/PANGAEA.746725
  4. Grachev, AF; Arakelyantz, MM; Lebedev, VA et al. (2001): (Table 2) K-Ar age determinations in Franz Josef Land basalts from Hole Northern-1. https://doi.org/10.1594/PANGAEA.746726