dc.contributor.author |
Carter, LC |
en |
dc.contributor.author |
Shane, Philip |
en |
dc.contributor.author |
Alloway, Brent |
en |
dc.contributor.author |
Hall, IR |
en |
dc.contributor.author |
Harris, SE |
en |
dc.contributor.author |
Westgate, JA |
en |
dc.date.accessioned |
2017-08-18T02:24:21Z |
en |
dc.date.issued |
2003-06 |
en |
dc.identifier.citation |
Geology, 31(6):493-493 June 2003 |
en |
dc.identifier.issn |
0091-7613 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/35199 |
en |
dc.description.abstract |
Ocean Drilling Program Sites 1123 and 1124 provide an unprecedented 12 m.y. record of major rhyolitic eruptions from the Coromandel and Taupo volcanic zones of New Zealand. Macroscopic tephras (n = 197) were dated using magnetostratigraphy, supplemented by geochemical correlation with subaerial tephra, isothermal plateau fission-track ages, and orbitally tuned stable isotope data. Eruptions began in the Coromandel volcanic zone ca. 12 Ma, ∼1.6–1 m.y. earlier than previously known. Thereafter, volcanism was fairly continuous with a tempo and intensity that increased through the late Miocene–Pliocene and into the Quaternary, when the Taupo volcanic zone formed. The transition from the Coromandel to the Taupo zone, previously placed as ca. 4–2 Ma, was seamless, without obvious breaks or changes in ash composition. This well-dated history of long-lived and productive volcanism allows for more confident correlation with other circum-Pacific tephra records, thus helping confirm the occurrence of widespread coeval eruptions throughout the region. |
en |
dc.language |
English |
en |
dc.publisher |
Geological Society of America |
en |
dc.relation.ispartofseries |
Geology |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://sherpa.ac.uk/romeo/issn/0091-7613/
http://www.geosociety.org/GSA/Publications/Info_Services/Subscriptions/GSA/Pubs/openAccess.aspx |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
Demise of one volcanic zone and birth of another—A 12 m.y. marine record of major rhyolitic eruptions from New Zealand |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1130/0091-7613(2003)031 |
en |
pubs.issue |
6 |
en |
pubs.begin-page |
493 |
en |
pubs.volume |
31 |
en |
dc.rights.holder |
Copyright: Geological Society of America |
en |
pubs.author-url |
https://pubs.geoscienceworld.org/geology/article-abstract/31/6/493/192593/demise-of-one-volcanic-zone-and-birth-of-another-a |
en |
pubs.end-page |
496 |
en |
pubs.publication-status |
Published |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
629158 |
en |
pubs.org-id |
Science |
en |
pubs.org-id |
School of Environment |
en |
dc.identifier.eissn |
1943-2682 |
en |
pubs.record-created-at-source-date |
2017-06-09 |
en |