Migmatite dome as a result of multi-fold interference pattern, in the Damara Belt, Namibia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F24%3A10169090" target="_blank" >RIV/00025798:_____/24:10169090 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jsg.2024.105059" target="_blank" >https://doi.org/10.1016/j.jsg.2024.105059</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jsg.2024.105059" target="_blank" >10.1016/j.jsg.2024.105059</a>
Alternative languages
Result language
angličtina
Original language name
Migmatite dome as a result of multi-fold interference pattern, in the Damara Belt, Namibia
Original language description
The western part of the Pan-African Damara Orogen in Namibia is located at the intersection of two highly oblique mobile belts: the coastal NNW-trending Kaoko-Gariep belts and the inland NE-trending Damara Belt. The Namibfontein-Vergenoeg (NV) domes are two, basement-cored, migmatite domes exposed in this orogenic intersection. These domes formed through the superposition of four deformation phases in the presence of melt, giving rise to syn-migmatitic multi-fold interference patterns. Early E-W shortening produced steep N-S striking S1 fabrics linked to km-scale steeply E-inclined F1 folds, likely reflecting the southern continuity of the Kaoko Belt fabrics. The superposition of NE-plunging, NNW-inclined F2 folds formed during NNW-SSE, orogenperpendicular shortening and produced a Type 1 dome-and-basin fold interference pattern. Progressive with D2, D3 deformation caused localised m-scale folding of steep fabrics into inclined to recumbent, NW-plunging F3 folds, and local top-to-the-S or -SE thrusting. NNW-SSE shortening is correlated with the collision of the Congo and Kalahari cratons during Damara Belt formation. Finally, orogen-parallel NE-SW shortening, produced localised NE-inclined and NE-plunging F4 folds. This weaker shortening phase in the Damara Belt is enigmatic and may reflect tectonic activities further in eastern and western Gondwana. The superposition of F4 folds on F2 folds defines a Type 3 fold interference pattern that established the final 3D architecture of the NV domes. The deformation fabrics at the NV domes document three distinct regional shortening events related to large-scale tectonic switches involved in the western Gondwana Supercontinent assembly.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GA23-07821S" target="_blank" >GA23-07821S: Pervasive melt migration in continental crust: a micro-scale process with large-scale implications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Structural Geology
ISSN
0191-8141
e-ISSN
1873-1201
Volume of the periodical
180
Issue of the periodical within the volume
105059
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
—
UT code for WoS article
001180445900001
EID of the result in the Scopus database
2-s2.0-85184136387