Linking the basement geology along the Africa-South America coasts in the South Atlantic
Accepted manuscript version. Published version at http://doi.org/10.1016/j.precamres.2016.05.011 . License CC BY-NC-ND 4.0 . The match of geological units of the dissected Kaoko-Dom Feliciano-Gariep orogenic system exposed along the coasts of the South Atlantic is poorly understood. Two suites of in...
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ftunivtroemsoe:oai:munin.uit.no:10037/10517 2023-05-15T18:21:11+02:00 Linking the basement geology along the Africa-South America coasts in the South Atlantic Konopasek, Jiri Slama, Jiri Košler, Jan 2016-05-13 https://hdl.handle.net/10037/10517 https://doi.org/10.1016/j.precamres.2016.05.011 eng eng Elsevier Precambrian Research Konopasek J, Slama J, Košler J. Linking the basement geology along the Africa-South America coasts in the South Atlantic. Precambrian Research. 2016;280:221-230 FRIDAID 1370915 doi:10.1016/j.precamres.2016.05.011 0301-9268 1872-7433 https://hdl.handle.net/10037/10517 openAccess VDP::Mathematics and natural science: 400::Geosciences: 450 Gondwana reconstruction South Atlantic Ocean Plate tectonics Kaoko Belt Dom Feliciano Belt Journal article Tidsskriftartikkel Peer reviewed 2016 ftunivtroemsoe https://doi.org/10.1016/j.precamres.2016.05.011 2021-06-25T17:55:08Z Accepted manuscript version. Published version at http://doi.org/10.1016/j.precamres.2016.05.011 . License CC BY-NC-ND 4.0 . The match of geological units of the dissected Kaoko-Dom Feliciano-Gariep orogenic system exposed along the coasts of the South Atlantic is poorly understood. Two suites of intrusive rocks crop out in the Angra Fria Bay area, a part of the Coastal Terrane of the Kaoko Belt in Namibia. U–Pb zircon dating of three samples from the younger suite provided ages of 574 ± 6, 586 ± 3 and 584 ± 7 Ma, similar to the ages of the oldest syn-collisional granitoids in the area. Three samples of the older suite gave ages of 626 ± 5, 622 ± 5 and 620 ± 6 Ma respectively, which have not previously been recorded in intrusive rocks of the Kaoko Belt, but which coincide with those from the Florianópolis Batholith in the Dom Feliciano Belt in Brazil. Zircon ages, Sr–Nd isotopic composition and tectonic position of these granitoids suggest that this magmatic complex could be a continuation of the Florianópolis Batholith on the African side of the Atlantic Ocean. Consequently, the Angra Fria intrusions and the Florianópolis Batholith may represent suitable localities for spatial reconstruction of the Gondwana supercontinent in the area, where the robust pre-Mesozoic connecting points are scarce. Article in Journal/Newspaper South Atlantic Ocean University of Tromsø: Munin Open Research Archive Precambrian Research 280 221 230 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450 Gondwana reconstruction South Atlantic Ocean Plate tectonics Kaoko Belt Dom Feliciano Belt |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 Gondwana reconstruction South Atlantic Ocean Plate tectonics Kaoko Belt Dom Feliciano Belt Konopasek, Jiri Slama, Jiri Košler, Jan Linking the basement geology along the Africa-South America coasts in the South Atlantic |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 Gondwana reconstruction South Atlantic Ocean Plate tectonics Kaoko Belt Dom Feliciano Belt |
description |
Accepted manuscript version. Published version at http://doi.org/10.1016/j.precamres.2016.05.011 . License CC BY-NC-ND 4.0 . The match of geological units of the dissected Kaoko-Dom Feliciano-Gariep orogenic system exposed along the coasts of the South Atlantic is poorly understood. Two suites of intrusive rocks crop out in the Angra Fria Bay area, a part of the Coastal Terrane of the Kaoko Belt in Namibia. U–Pb zircon dating of three samples from the younger suite provided ages of 574 ± 6, 586 ± 3 and 584 ± 7 Ma, similar to the ages of the oldest syn-collisional granitoids in the area. Three samples of the older suite gave ages of 626 ± 5, 622 ± 5 and 620 ± 6 Ma respectively, which have not previously been recorded in intrusive rocks of the Kaoko Belt, but which coincide with those from the Florianópolis Batholith in the Dom Feliciano Belt in Brazil. Zircon ages, Sr–Nd isotopic composition and tectonic position of these granitoids suggest that this magmatic complex could be a continuation of the Florianópolis Batholith on the African side of the Atlantic Ocean. Consequently, the Angra Fria intrusions and the Florianópolis Batholith may represent suitable localities for spatial reconstruction of the Gondwana supercontinent in the area, where the robust pre-Mesozoic connecting points are scarce. |
format |
Article in Journal/Newspaper |
author |
Konopasek, Jiri Slama, Jiri Košler, Jan |
author_facet |
Konopasek, Jiri Slama, Jiri Košler, Jan |
author_sort |
Konopasek, Jiri |
title |
Linking the basement geology along the Africa-South America coasts in the South Atlantic |
title_short |
Linking the basement geology along the Africa-South America coasts in the South Atlantic |
title_full |
Linking the basement geology along the Africa-South America coasts in the South Atlantic |
title_fullStr |
Linking the basement geology along the Africa-South America coasts in the South Atlantic |
title_full_unstemmed |
Linking the basement geology along the Africa-South America coasts in the South Atlantic |
title_sort |
linking the basement geology along the africa-south america coasts in the south atlantic |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://hdl.handle.net/10037/10517 https://doi.org/10.1016/j.precamres.2016.05.011 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
Precambrian Research Konopasek J, Slama J, Košler J. Linking the basement geology along the Africa-South America coasts in the South Atlantic. Precambrian Research. 2016;280:221-230 FRIDAID 1370915 doi:10.1016/j.precamres.2016.05.011 0301-9268 1872-7433 https://hdl.handle.net/10037/10517 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1016/j.precamres.2016.05.011 |
container_title |
Precambrian Research |
container_volume |
280 |
container_start_page |
221 |
op_container_end_page |
230 |
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1766200327741112320 |