Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8304
AuthorsAlbert, P. G.* 
Tomlinson, E. L.* 
Smith, V. C.* 
Di Roberto, A.* 
Todman, A.* 
Rosi, M.* 
Marani, M.* 
Muller, W.* 
Menzies, M. A.* 
TitleMarine-continental tephra correlations: Volcanic glass geochemistry from the Marsili Basin and the Aeolian Islands, Southern Tyrrhenian Sea, Italy
Issue Date1-Jun-2012
Series/Report no./229-230(2012)
DOI10.1016/j.jvolgeores.2012.03.009
URIhttp://hdl.handle.net/2122/8304
KeywordsMarsili Basin
Glass chemistry
Tephra
Trace element
Aeolian Islands
Subject Classification04. Solid Earth::04.04. Geology::04.04.08. Sediments: dating, processes, transport 
04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks 
AbstractMajor, minor and trace element analysis of volcanic glass in proximal and distal (< 2 mm) tephra deposits underpins tephrochronology. This approach has been tested in the Aeolian Islands and the Tyrrhenian Sea using juvenile clasts in pyroclastic fall and flow deposits. Geochemical data are used to link marine tephras in the Marsili Basin (core TIR2000-C01) to explosive eruptions of (1) Lipari (Monte Pilato; 776 cal AD); (2) Vulcano; and (3) Campi Flegrei (Soccavo 1; 11,915–12,721 cal years BP). Whether a polymictic coarse grained volcaniclastic turbidite in the Marsili Basin originated from collapse on Salina remains unresolved because multi-elemental analysis raises doubt about the published correlation to the Pollara region. It is evident that correlation of proximal continental and distal marine tephras, at a high level of confidence, requires a full complement of major, minor and trace element data. In conjunction with considerations of the mineralogy and morphology of juvenile deposits these data help define petrological lineages such that precise provenance can be established. Whilst a precise proximal–distal match must be based on identical major, minor and trace element concentrations it is clear that resurgent activity from a single volcano can produce magmas with identical compositions. In such cases stratigraphic relationships must complement any geochemical study. Occasionally proximal stratigraphies may be unrepresentative of the complete eruptive history because of a lack of exposure due to burial by more recent effusive and explosive activity, or sector collapse which can remove vital stratigraphy particularly on volcanic islands.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
JVGR_Albert_etal_2012.pdf2.49 MBAdobe PDFView/Open
Show full item record

Page view(s)

551
Last Week
0
Last month
checked on Jun 26, 2017

Download(s)

27
checked on Jun 26, 2017

Google ScholarTM

Check

Altmetric