Interpreting gravity anomalies in south cameroon, central africa
The area involved in this study is the northern part of the Congo craton, located in south Cameroon, (2.5°N - 4.5°N, 11°E - 13°E). The study involved analysing gravity data to delineate major structures and faults in south Cameroon. The region’s Bouguer gravity is characterised by elongated SW-NE ne...
- Autores:
-
Shandini, Yves
Tadjou, Jean Marie
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2012
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/43603
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/43603
http://bdigital.unal.edu.co/33701/
http://bdigital.unal.edu.co/33701/2/
- Palabra clave:
- fault
gravity data
isostatic residual gravity
south Cameroon
total horizontal derivative.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Shandini, Yves9a7bebe9-fabb-438b-8a97-8aa70602f56a300Tadjou, Jean Marie770ff00a-deab-4b38-8972-419d7cdf78d13002019-06-28T12:11:40Z2019-06-28T12:11:40Z2012https://repositorio.unal.edu.co/handle/unal/43603http://bdigital.unal.edu.co/33701/http://bdigital.unal.edu.co/33701/2/The area involved in this study is the northern part of the Congo craton, located in south Cameroon, (2.5°N - 4.5°N, 11°E - 13°E). The study involved analysing gravity data to delineate major structures and faults in south Cameroon. The region’s Bouguer gravity is characterised by elongated SW-NE negative gravity anomaly corresponding to a collapsed structure associated with a granitic intrusion beneath the region, limited by fault systems; this was clearly evident on an isostatic residual gravity map. High gravity anomaly within the northern part of the area was interpreted as a result of dense bodies put in place at the root of the crust. Positive anomalies in the northern part of the area were separated from southern negative anomalies by a prominent E-W lineament; this was interpreted on the gravity maps as a suture zone between the south Congo craton and the Pan-African formations. Gravity anomalies’ total horizontal derivatives generally reflect faults or compositional changes which can describe structural trends. The local maxima of the Bouguer gravity data’s horizontal gradient grid and its upward continuation at various altitudes were used to highlight the deepest lineament faults and their dip and direction. These features led to producing a structural map of the study area.application/pdfspaUNIVERSIDAD NACIONAL DE COLOMBIAhttp://revistas.unal.edu.co/index.php/esrj/article/view/33591Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research JournalEarth Sciences Research JournalEarth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 Earth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 2339-3459 1794-6190Shandini, Yves and Tadjou, Jean Marie (2012) Interpreting gravity anomalies in south cameroon, central africa. Earth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 Earth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 2339-3459 1794-6190 .Interpreting gravity anomalies in south cameroon, central africaArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTfaultgravity dataisostatic residual gravitysouth Cameroontotal horizontal derivative.ORIGINAL33591-124780-1-PB.pdfapplication/pdf2701619https://repositorio.unal.edu.co/bitstream/unal/43603/1/33591-124780-1-PB.pdf1588c5fc82a7c9932d67ac113f31a404MD51THUMBNAIL33591-124780-1-PB.pdf.jpg33591-124780-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg7633https://repositorio.unal.edu.co/bitstream/unal/43603/2/33591-124780-1-PB.pdf.jpg21eb95947640e3725c7d315a83877c2bMD52unal/43603oai:repositorio.unal.edu.co:unal/436032024-02-11 23:18:22.919Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Interpreting gravity anomalies in south cameroon, central africa |
title |
Interpreting gravity anomalies in south cameroon, central africa |
spellingShingle |
Interpreting gravity anomalies in south cameroon, central africa fault gravity data isostatic residual gravity south Cameroon total horizontal derivative. |
title_short |
Interpreting gravity anomalies in south cameroon, central africa |
title_full |
Interpreting gravity anomalies in south cameroon, central africa |
title_fullStr |
Interpreting gravity anomalies in south cameroon, central africa |
title_full_unstemmed |
Interpreting gravity anomalies in south cameroon, central africa |
title_sort |
Interpreting gravity anomalies in south cameroon, central africa |
dc.creator.fl_str_mv |
Shandini, Yves Tadjou, Jean Marie |
dc.contributor.author.spa.fl_str_mv |
Shandini, Yves Tadjou, Jean Marie |
dc.subject.proposal.spa.fl_str_mv |
fault gravity data isostatic residual gravity south Cameroon total horizontal derivative. |
topic |
fault gravity data isostatic residual gravity south Cameroon total horizontal derivative. |
description |
The area involved in this study is the northern part of the Congo craton, located in south Cameroon, (2.5°N - 4.5°N, 11°E - 13°E). The study involved analysing gravity data to delineate major structures and faults in south Cameroon. The region’s Bouguer gravity is characterised by elongated SW-NE negative gravity anomaly corresponding to a collapsed structure associated with a granitic intrusion beneath the region, limited by fault systems; this was clearly evident on an isostatic residual gravity map. High gravity anomaly within the northern part of the area was interpreted as a result of dense bodies put in place at the root of the crust. Positive anomalies in the northern part of the area were separated from southern negative anomalies by a prominent E-W lineament; this was interpreted on the gravity maps as a suture zone between the south Congo craton and the Pan-African formations. Gravity anomalies’ total horizontal derivatives generally reflect faults or compositional changes which can describe structural trends. The local maxima of the Bouguer gravity data’s horizontal gradient grid and its upward continuation at various altitudes were used to highlight the deepest lineament faults and their dip and direction. These features led to producing a structural map of the study area. |
publishDate |
2012 |
dc.date.issued.spa.fl_str_mv |
2012 |
dc.date.accessioned.spa.fl_str_mv |
2019-06-28T12:11:40Z |
dc.date.available.spa.fl_str_mv |
2019-06-28T12:11:40Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
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publishedVersion |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/43603 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/33701/ http://bdigital.unal.edu.co/33701/2/ |
url |
https://repositorio.unal.edu.co/handle/unal/43603 http://bdigital.unal.edu.co/33701/ http://bdigital.unal.edu.co/33701/2/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
http://revistas.unal.edu.co/index.php/esrj/article/view/33591 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal Earth Sciences Research Journal |
dc.relation.ispartofseries.none.fl_str_mv |
Earth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 Earth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 2339-3459 1794-6190 |
dc.relation.references.spa.fl_str_mv |
Shandini, Yves and Tadjou, Jean Marie (2012) Interpreting gravity anomalies in south cameroon, central africa. Earth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 Earth Sciences Research Journal; Vol. 16, núm. 1 (2012); 5-9 2339-3459 1794-6190 . |
dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
dc.format.mimetype.spa.fl_str_mv |
application/pdf |
dc.publisher.spa.fl_str_mv |
UNIVERSIDAD NACIONAL DE COLOMBIA |
institution |
Universidad Nacional de Colombia |
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