NDLI: Late Pleistocene-Holocene volcanic activity in northern Victoria Land recorded in Ross Sea (Antarctica) marine sediments

Content Provider	Springer Nature Link
Author	Carlo, P. Roberto, A. Vincenzo, G. Bertagnini, A. Landi, P. Pompilio, M. Colizza, E. Giorda, G.
Copyright Year	2015
Abstract	Eight pyroclastic fall deposits have been identified in cores of Late Pleistocene-Holocene marine sediments from the Ross Sea (Antarctica), and their components, granulometry and clast morphologies were analysed. Sedimentological, petrographic and geochemical analysis of clasts, with 40Ar-39Ar dating of alkali feldspar grains, indicate that during this period at least five explosive eruptions of mid to high intensity (plinian to subplinian) occurred, and that three of these eruptions took place from Mount Melbourne volcanic complex, between 137.1 ± 3.4 and 12 ka. Geochemical comparison of the studied tephra with micro- and crypto-tephra recovered from deep Antarctic ice cores and from nearby englacial tephra at Frontier Mountain indicates that eruptive activity in the Melbourne Volcanic Province of northern Victoria Land was intense during the Late Pleistocene-Holocene, but only a general area of provenance for the majority of the identified tephra can be identified.
Starting Page	1
Ending Page	17
Page Count	17
File Format	PDF
ISSN	02588900
Journal	Bulletin of Volcanology
Volume Number	77
Issue Number	5
e-ISSN	14320819
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-04-14
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antarctica Melbourne volcanic province Gravity cores Marine tephra 40Ar-39Ar dating Geology Geophysics/Geodesy Mineralogy Sedimentology
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology

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