Emplacement History of the Miocene Zebin Tuff Cone (Czech Republic) Revealed From Ground Geophysics, Anisotropy of Magnetic Susceptibility, Paleomagnetic, and Ar-40/Ar-39 Geochronology Data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10389056" target="_blank" >RIV/00216208:11310/18:10389056 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1029/2017GC007324" target="_blank" >https://doi.org/10.1029/2017GC007324</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2017GC007324" target="_blank" >10.1029/2017GC007324</a>

Result language

angličtina

Original language name

Emplacement History of the Miocene Zebin Tuff Cone (Czech Republic) Revealed From Ground Geophysics, Anisotropy of Magnetic Susceptibility, Paleomagnetic, and Ar-40/Ar-39 Geochronology Data

Original language description

The Zebin Volcano, Czech Republic, is a quarried tuff cone that offers the opportunity to understand emplacement processes responsible for magma transport through a pyroclastic cone and magmatic processes involved in its development. A high-resolution ground magnetometry survey, electrical resistivity tomography, and refraction seismic were conducted to supplement field mapping of the size, shape, and inner structure of the volcanic system. The Zebin Volcano yields normal polarity rocks, and the cone is underlain by a complex and branching magma feeder system with several diverging dikes. Samples were collected at 24 sites from feeder dikes and the main conduit for anisotropy of magnetic susceptibility and paleomagnetic analysis. Anisotropy of magnetic susceptibility results yield inferred magma flow directions indicating subhorizontal magma flow toward and away from the axial conduit as well as both upward and downward flow. Paleomagnetic data from all sites are normal polarity with statistically distinct remanence directions between some sites that indicate that significant time passed or deformation occurred during the growth of this volcanic system. Ar-40/Ar-39 isochron ages of groundmass provide emplacement ages of 18.380.03 and 18.450.03Ma, whereas a weighted mean date of 18.520.03Ma for hornblende provides an eruption age. We argue that the Zebin Volcano evolved from a polyphase feeding system and through a complex feeder network. This detailed study shows that many monogenetic volcanoes deserve highly detailed study, as their subtleties can provide insight into broader crustal and magmatic environment during magmatism.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geochemistry, Geophysics, Geosystems

ISSN

1525-2027

e-ISSN

—

Volume of the periodical

19

Issue of the periodical within the volume

10

Country of publishing house

US - UNITED STATES

Number of pages

29

Pages from-to

3764-3792

UT code for WoS article

000450640800010

EID of the result in the Scopus database

2-s2.0-85055268624