Faroe Marine Ash Zone IV: a new MIS 3 ash zone on the Faroe Islands margin
Faroe Marine Ash Zone IV: a new MIS 3 ash zone on the Faroe Islands margin
复制标题
法罗海洋灰烬区 IV:位于法罗群岛边缘的新 MIS 3 灰烬区
DOI:
10.1144/sp398.3
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发表时间:
2014
影响因子:
4.6
通讯作者:
T. L. Rasmussen
中科院分区:
文献类型:
--
作者:
S. Wastegård;T. L. Rasmussen
Abstract A basaltic tephra layer from MIS 3 has been discovered by analysis of cores from the Faroe Islands margin. The tephra layer appears up to 20 cm thick in some records. After the first main fall-out event the tephra is believed to be mainly deposited and redistributed by bottom currents. Geochemical analyses suggest that the tephra is relatively undisturbed by allochtonous tephra grains and unmixed. The peak occurrences are in the lower part of GIS (Greenland Interstadial) 12 and we suggest naming this new tephra Faroe Marine Ash Zone IV (FMAZ IV), following the nomenclature adopted for previous ash zones found on the Faroe Islands margin. Geochemical analyses of the tephra show affinities with the Grímsvötn volcanic system in the Eastern Volcanic Zone in south Iceland. The average age of FMAZ IV from four independent age models is 46 800±1000 years BP. We suggest that the V5 ash zone, found on the Reykjanes Ridge is a correlative to the FMAZ IV. Supplementary material: Single-grain analyses of tephra from FMAZ IV in cores from the northern Faroe margin and the central Faroe-Shetland Channel are available at http://www.geolsoc.org.uk/SUP18714
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影响因子:
12.1
作者:
Abbott, Peter M.;Davies, Siwan M.
通讯作者:
Davies, Siwan M.
DOI:
10.1073/pnas.1204579109
发表时间:
2012-08-21
影响因子:
11.1
作者:
Lowe, John;Barton, Nick;Tzedakis, Polychronis C.
通讯作者:
Tzedakis, Polychronis C.
DOI:
10.1098/rsta.2010.0063
发表时间:
2010
期刊:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
影响因子:
--
作者:
Tuffen H
通讯作者:
Tuffen H
影响因子:
4
作者:
Abbott, Peter M.;Davies, Siwan M.;Wastegard, Stefan
通讯作者:
Wastegard, Stefan