10.1594/PANGAEA.746727
Grachev, A F
A F
Grachev
Arakelyantz, M M
M M
Arakelyantz
Lebedev, V A
V A
Lebedev
0000-0002-8687-5363
Musatov, Evgeny E
Evgeny E
Musatov
Stolbov, N M
N M
Stolbov
K-Ar ages of basalts from islands of the Franz Josef Land archipelago
PANGAEA
2001
Drilling/drill rig
VNIIO-1979
VNIIO-1980
Archive of Ocean Data (ARCOD)
1977-01-01T00:00:00/1980-01-01T00:00:00
en
Supplementary Publication Series of Datasets
10.2205/2001ES000053
4 datasets
application/zip
Creative Commons Attribution 3.0 Unported
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.
Supplement to: Grachev, A F; Arakelyantz, M M; Lebedev, V A; Musatov, Evgeny E; Stolbov, N M (2001): New K-Ar ages for basalts from Franz Josef Land. Russian Journal of Earth Sciences, 3(1), 79-82
47.7083
64.3333
80.137
81.2374
George Land, Franz Josef Land
Hooker Island, Franz Josef Land
Hays Island, Franz Josef Land
Franz Josef Land
Alexandra Land Island, Franz Josef Land
Graham Bell Island, Franz Josef Land
Greeley Island, Franz Josef Land
Jackson Island, Franz Josef Land
Wiener Neustadt Island, Franz Josef Land