Along-strike magma-poor/magma-rich spreading transitions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F23%3A10256249" target="_blank" >RIV/61989100:27350/23:10256249 - isvavai.cz</a>
Result on the web
<a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85186258679&origin=resultslist&sort=plf-f&src=s&sid=be5e5d79afab5f567fe4157cf24fd8b8&sot=b&sdt=cl&cluster=scosubjabbr%2C%22EART%22%2Ct&s=AUTH%28Nem%C4%8Dok%2C+M.%29&sl=16&sessionSearchId=be5e5d79afab5f567fe4157cf24fd8b8&relpos=2" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85186258679&origin=resultslist&sort=plf-f&src=s&sid=be5e5d79afab5f567fe4157cf24fd8b8&sot=b&sdt=cl&cluster=scosubjabbr%2C%22EART%22%2Ct&s=AUTH%28Nem%C4%8Dok%2C+M.%29&sl=16&sessionSearchId=be5e5d79afab5f567fe4157cf24fd8b8&relpos=2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1144/SP524-2022-183" target="_blank" >10.1144/SP524-2022-183</a>
Alternative languages
Result language
angličtina
Original language name
Along-strike magma-poor/magma-rich spreading transitions
Original language description
1D/2D data-based studies of active spreading centres brought the knowledge of extension rate-dependent stretching-dominated v. buoyancy-dominated spreading. 3D reflection seismic data from the extinct centre of an initial oceanic corridor in the Caribbean allow us to see an along-strike transition between stretching-and buoyancy-dominated spreading where the spreading through detachment faulting is a precursor to the magma-assisted spreading. Studying progressively more evolved portions of the spreading centre, going from its end towards its centre, we see a progressively higher ascent of the asthenosphere, which heats the developing core complex in the exhuming footwall of the initial stretching-dominated system. The asthenospheric ascent is associated with thermal weakening of the core complex, which eventually results in ductile deformation reaching the upper portion of the complex. Subsequently, the core complex is penetrated by the dyke located at the top of the asthenospheric body. The dyke, which subsequently evolves to a diapir-shaped body, reaches the sea floor and establishes a magma-assisted steady-state seafloor spreading. These observations lead to a model explaining the initiation of the magma-assisted spreading in the initial oceanic corridor. Furthermore, they also improve our knowledge of multiple interacting mechanisms involved in the breakup of the last continental lithospheric layer, subsequent disorganized spreading and younger organized spreading. (C) 2023 The Author(s). Published by The Geological Society of London. All rights reserved.
Czech name
—
Czech description
—
Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
—
OECD FORD branch
10505 - Geology
Result continuities
Project
—
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geological Society Special Publication. Volume 524
ISSN
0305-8719
e-ISSN
—
Volume of the periodical
524
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
18
Pages from-to
147-164
UT code for WoS article
—
EID of the result in the Scopus database
2-s2.0-85186258679