Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional de Geociências - RIGEO |
Texto Completo: | https://rigeo.cprm.gov.br/handle/doc/16586 |
Resumo: | Two new kimberlitic pipes were discovered in the northern portion of Rio Grande do Norte state during fieldworks developed into the Diamond Brazil Project. The intrusions were named as Santa Fé-1 and Santa Fé-2 and are located in the Rio Piranhas-Seridó domain, Borborema Province. Santa Fé-1 and Santa Fé-2 pipes have areas of 27 ha and 9 ha, respectively, and exhibit a volcaniclastic kimberlite breccia texture containing ilmenite, garnet, spinel and clinopyroxene in abundance. Eclogite garnet contains Na2O > 0.07 wt. % and has been classified as G3"D" and G4"D". According to ground magnetic and gravity survey data, the kimberlitic intrusions are cylindrical bodies, magnetically stratified and discordantly hosted into highly magnetic and dense rocks, which correspond to granodioritic and tonalitic orthogneisses and migmatites of the Arabia Complex (2546 ± 4.2 Ma, SHRIMP U-Pb zircon). The recognition of kimberlitic pipes with expressive dimensions in an off-craton setting opens new horizons to the exploration of primary sources for diamonds in the Borborema Province and especially in the Rio Grande do Norte state. |
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CABRAL NETO, IzaacCUNHA, Lys MatosSILVEIRA, Francisco Valdir daNANNINI, FelixOLIVEIRA, Roberto Gusmão deSOUZA, Weldom Saraiva deBEZERRA, Ana Karoline2016-08-09T14:22:43Z2016-08-09T14:22:43Z2015CABRAL NETO, Izaac et al. Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil. Informe Técnico, Brasília, n. 2, nov. 2015.2448-2242https://rigeo.cprm.gov.br/handle/doc/16586Two new kimberlitic pipes were discovered in the northern portion of Rio Grande do Norte state during fieldworks developed into the Diamond Brazil Project. The intrusions were named as Santa Fé-1 and Santa Fé-2 and are located in the Rio Piranhas-Seridó domain, Borborema Province. Santa Fé-1 and Santa Fé-2 pipes have areas of 27 ha and 9 ha, respectively, and exhibit a volcaniclastic kimberlite breccia texture containing ilmenite, garnet, spinel and clinopyroxene in abundance. Eclogite garnet contains Na2O > 0.07 wt. % and has been classified as G3"D" and G4"D". According to ground magnetic and gravity survey data, the kimberlitic intrusions are cylindrical bodies, magnetically stratified and discordantly hosted into highly magnetic and dense rocks, which correspond to granodioritic and tonalitic orthogneisses and migmatites of the Arabia Complex (2546 ± 4.2 Ma, SHRIMP U-Pb zircon). The recognition of kimberlitic pipes with expressive dimensions in an off-craton setting opens new horizons to the exploration of primary sources for diamonds in the Borborema Province and especially in the Rio Grande do Norte state.CPRMRECURSOS MINERAISKIMBERLITOSPROJETO DIAMANTE BRASILBRASILNORDESTERIO GRANDE DO NORTEPROVÍNCIA BORBOREMADiscovery of the first kimberlitic pipes at Borborema Province, NE Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasíliainfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMORIGINALNT_2-Kimberlite_Borborema.pdfNT_2-Kimberlite_Borborema.pdfproducao institucionalapplication/pdf5244969http://rigeo.cprm.gov.br/jspui/bitstream/doc/16586/1/NT_2-Kimberlite_Borborema.pdff6d5d6e68aa068bf691452122fb586dbMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-82317http://rigeo.cprm.gov.br/jspui/bitstream/doc/16586/2/license.txtbb1fb6513dc5ea9153aaac2c565a7d35MD52TEXTNT_2-Kimberlite_Borborema.pdf.txtNT_2-Kimberlite_Borborema.pdf.txtExtracted texttext/plain15014http://rigeo.cprm.gov.br/jspui/bitstream/doc/16586/3/NT_2-Kimberlite_Borborema.pdf.txtc65a8a5030ae87d79dfd6a2a6022d654MD53THUMBNAILNT_2-Kimberlite_Borborema.pdf.jpgNT_2-Kimberlite_Borborema.pdf.jpgGenerated Thumbnailimage/jpeg1712http://rigeo.cprm.gov.br/jspui/bitstream/doc/16586/4/NT_2-Kimberlite_Borborema.pdf.jpg312b9d51a170325aa5c77a2ed03e8d18MD54doc/165862023-02-13 11:13:13.2oai:rigeo.sgb.gov.br:doc/16586TElDRU7Dh0EgRElTVFJJQlXDjURBCgpObyBSSUdlbywgcGFyYSByZXByb2R1emlyLCB0cmFkdXppciBlIGRpc3RyaWJ1aXIgc3VhIHN1Ym1pc3PDo28sIHZvY8OqIGRldmUgY29uY29yZGFyIGNvbSBvcyB0ZXJtb3MgYSBzZWd1aXIuCkNvbmNlZGVyIGEgbGljZW7Dp2EgZGUgZGlzdHJpYnVpw6fDo28gcGFkcsOjbywgc2VsZWNpb25hbmRvICJFdSBjb25jZWRvIGEgTGljZW7Dp2EiLgoKUmVzc2FsdGFtb3MgYWluZGEgcXVlIHRvZG9zIG9zIHRyYWJhbGhvcyBkZXBvc2l0YWRvcyBubyBSSUdlbyBlc3TDo28gZW0gY29uc29uw6JuY2lhIGNvbSBhCk5vcm1hIGRlIFByZXNlcnZhw6fDo28gZGEgTWVtw7NyaWEgVMOpY25pY2EgZG8gU0dCIC0gTUNUIDA5LjEgZGlzcG9uw612ZWwgbmEgSW50cmFuZXQuCgoKTElDRU7Dh0EgREUgRElTVFJJQlVJw4fDg08gTsODTyBFWENMVVNJVkEKCk9zIGRlcG9zaXRhbnRlcyBkZXZlbSBjb25jZWRlciDDoCBDUFJNIOKAkyBTZXJ2acOnbyBHZW9sw7NnaWNvIGRvIEJyYXNpbCB1bWEgTGljZW7Dp2EgZGUgRGlzdHJpYnVpw6fDo28gTsOjby1FeGNsdXNpdmEgcGFyYSBtYW50ZXIgZQp0b3JuYXIgYWNlc3PDrXZlaXMgb3MgZG9jdW1lbnRvcyBlbSBmb3JtYXRvIGRpZ2l0YWwgbm8gUmVwb3NpdMOzcmlvLgoKQ29tIGEgY29uY2Vzc8OjbyBkZXN0YSBsaWNlbsOnYSBuw6NvIGV4Y2x1c2l2YSwgb3MgcGVzcXVpc2Fkb3JlcyBjb250aW51YW0gYSByZXRlciB0b2RvcyBvcyBkaXJlaXRvcyBkZSBhdXRvci4KQW8gYXNzaW5hciBlIHN1Ym1ldGVyIGVzdGEgbGljZW7Dp2EsIHZvY8OqOgoJYSkgIENvbmNlZGUgYSBDUFJNIG8gZGlyZWl0byBuw6NvIGV4Y2x1c2l2byBkZSBhcnF1aXZhciwgcmVwcm9kdXppciwgY29udmVydGVyLCBjb211bmljYXIgZSAvb3UgZGlzdHJpYnVpciBubyBSZXBvc2l0w7NyaW87CgliKSAgQ29uY29yZGEgcXVlIGEgQ1BSTSBwb2RlLCBzZW0gYWx0ZXJhciBvIGNvbnRlw7pkbywgY29udmVydGVyIGEgc3VibWlzc8OjbyBwYXJhIHF1YWxxdWVyIG3DrWRpYSBvdSBmb3JtYXRvIHBhcmEgZWZlaXRvcwoJICAgIGRlIHByZXNlcnZhw6fDo287CgljKSAgQ29uY29yZGEgcXVlIGEgQ1BSTSBwb2RlIG1hbnRlciBtYWlzIGRlIHVtYSBjw7NwaWEgZGVzdGEgc3VibWlzc8OjbyBwYXJhIGVmZWl0b3MgZGUgc2VndXJhbsOnYSBlIHByZXNlcnZhw6fDo287CglkKSAgQXNzZWd1cmEgcXVlIGEgc3VibWlzc8OjbyDDqSB1bSB0cmFiYWxobyBvcmlnaW5hbCBzZXUsIGUgcXVlIHZvY8OqIHRlbSBvIGRpcmVpdG8gcGFyYSBjb25jZWRlciBvcyBkaXJlaXRvcyBjb250aWRvcwoJICAgIG5lc3RhIGxpY2Vuw6dhLiBBc3NlZ3VyYSB0YW1iw6ltIHF1ZSBzdWEgc3VibWlzc8OjbyBuw6NvIGluZnJpbmdlIG9zIGRpcmVpdG9zIGF1dG9yYWlzIGRlIHF1YWxxdWVyIG91dHJhIHBlc3NvYSBvdSBlbnRpZGFkZTsKCWUpICBTZSBhIHN1Ym1pc3PDo28gdGl2ZXIgbWF0ZXJpYWwgbyBxdWFsIHZvY8OqIG7Do28gcG9zc3VpIG9zIGRpcmVpdG9zLCB2b2PDqiBhc3NlZ3VyYSBxdWUgb2J0ZXZlIGEgcGVybWlzc8OjbyBpcnJlc3RyaXRhIGRlIGPDs3BpYQoJICAgIGRvIHByb3ByaWV0w6FyaW8gcGFyYSBnYXJhbnRpciBhIENQUk0gb3MgZGlyZWl0b3MgcmVxdWVyaWRvcyBwb3IgZXN0YSBsaWNlbsOnYSwgZSBxdWUgdGFsIG1hdGVyaWFsIGRlIHByb3ByaWVkYWRlIGRlIHRlcmNlaXJvcwoJICAgIGVzdMOhIGNsYXJhbWVudGUgaWRlbnRpZmljYWRvIGUgcXVlIG8gcmVjb25oZWNlIGRlbnRybyBkbyB0ZXh0byBvdSBkbyBjb250ZcO6ZG8gZGUgc3VibWlzc8Ojby4KCWYpICBTZSBvIGRvY3VtZW50byBlbnRyZWd1ZSDDqSBiYXNlYWRvIGVtIHRyYWJhbGhvIGZpbmFuY2lhZG8gb3UgYXBvaWFkbyBwb3Igb3V0cmEgaW5zdGl0dWnDp8OjbyBxdWUgbsOjbyBhIENQUk0sCgkgICAgZGVjbGFyYSBxdWUgY3VtcHJpdSBxdWFpc3F1ZXIgb2JyaWdhw6fDtWVzIGV4aWdpZGFzIHBlbG8gcmVzcGVjdGl2byBjb250cmF0byBvdSBhY29yZG8uCkEgQ1BSTSBpZGVudGlmaWNhcsOhIGNsYXJhbWVudGUgbyhzKSBub21lKHMpIGRvKHMpIGF1dG9yKGVzKSBkb3MgZGlyZWl0b3MgZG8gZG9jdW1lbnRvIGVudHJlZ3VlIGUgbsOjbyBmYXLDoSBxdWFscXVlciBhbHRlcmHDp8OjbywKZXhjZXRvIGNvbmZvcm1lIHBlcm1pdGlkbyBwb3IgZXN0YSBsaWNlbsOnYSwgbmEgc3VhIHN1Ym1pc3PDo28uCgpTZSB2b2PDqiB0aXZlciBkw7p2aWRhcyBzb2JyZSBlc3RhIGxpY2Vuw6dhLCBwb3IgZmF2b3IgZW50cmUgZW0gY29udGF0byBjb20gb3MgYWRtaW5pc3RyYWRvcmVzIGRvIHNpc3RlbWEuCg==Repositório InstitucionalONGhttps://rigeo.sgb.gov.br/oai/request https://rigeo.cprm.gov.br/oai/requestrigeo@sgb.gov.bropendoar:2023-02-13T14:13:13Repositório Institucional de Geociências - RIGEO - Companhia de Pesquisa de Recursos Minerais (CPRM)false |
dc.title.pt_BR.fl_str_mv |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil |
title |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil |
spellingShingle |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil CABRAL NETO, Izaac RECURSOS MINERAIS KIMBERLITOS PROJETO DIAMANTE BRASIL BRASIL NORDESTE RIO GRANDE DO NORTE PROVÍNCIA BORBOREMA |
title_short |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil |
title_full |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil |
title_fullStr |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil |
title_full_unstemmed |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil |
title_sort |
Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil |
author |
CABRAL NETO, Izaac |
author_facet |
CABRAL NETO, Izaac CUNHA, Lys Matos SILVEIRA, Francisco Valdir da NANNINI, Felix OLIVEIRA, Roberto Gusmão de SOUZA, Weldom Saraiva de BEZERRA, Ana Karoline |
author_role |
author |
author2 |
CUNHA, Lys Matos SILVEIRA, Francisco Valdir da NANNINI, Felix OLIVEIRA, Roberto Gusmão de SOUZA, Weldom Saraiva de BEZERRA, Ana Karoline |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
CABRAL NETO, Izaac CUNHA, Lys Matos SILVEIRA, Francisco Valdir da NANNINI, Felix OLIVEIRA, Roberto Gusmão de SOUZA, Weldom Saraiva de BEZERRA, Ana Karoline |
dc.subject.por.fl_str_mv |
RECURSOS MINERAIS KIMBERLITOS PROJETO DIAMANTE BRASIL BRASIL NORDESTE RIO GRANDE DO NORTE PROVÍNCIA BORBOREMA |
topic |
RECURSOS MINERAIS KIMBERLITOS PROJETO DIAMANTE BRASIL BRASIL NORDESTE RIO GRANDE DO NORTE PROVÍNCIA BORBOREMA |
description |
Two new kimberlitic pipes were discovered in the northern portion of Rio Grande do Norte state during fieldworks developed into the Diamond Brazil Project. The intrusions were named as Santa Fé-1 and Santa Fé-2 and are located in the Rio Piranhas-Seridó domain, Borborema Province. Santa Fé-1 and Santa Fé-2 pipes have areas of 27 ha and 9 ha, respectively, and exhibit a volcaniclastic kimberlite breccia texture containing ilmenite, garnet, spinel and clinopyroxene in abundance. Eclogite garnet contains Na2O > 0.07 wt. % and has been classified as G3"D" and G4"D". According to ground magnetic and gravity survey data, the kimberlitic intrusions are cylindrical bodies, magnetically stratified and discordantly hosted into highly magnetic and dense rocks, which correspond to granodioritic and tonalitic orthogneisses and migmatites of the Arabia Complex (2546 ± 4.2 Ma, SHRIMP U-Pb zircon). The recognition of kimberlitic pipes with expressive dimensions in an off-craton setting opens new horizons to the exploration of primary sources for diamonds in the Borborema Province and especially in the Rio Grande do Norte state. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015 |
dc.date.accessioned.fl_str_mv |
2016-08-09T14:22:43Z |
dc.date.available.fl_str_mv |
2016-08-09T14:22:43Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
CABRAL NETO, Izaac et al. Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil. Informe Técnico, Brasília, n. 2, nov. 2015. |
dc.identifier.uri.fl_str_mv |
https://rigeo.cprm.gov.br/handle/doc/16586 |
dc.identifier.issn.none.fl_str_mv |
2448-2242 |
identifier_str_mv |
CABRAL NETO, Izaac et al. Discovery of the first kimberlitic pipes at Borborema Province, NE Brazil. Informe Técnico, Brasília, n. 2, nov. 2015. 2448-2242 |
url |
https://rigeo.cprm.gov.br/handle/doc/16586 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
CPRM |
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CPRM |
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reponame:Repositório Institucional de Geociências - RIGEO instname:Companhia de Pesquisa de Recursos Minerais (CPRM) instacron:CPRM |
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Companhia de Pesquisa de Recursos Minerais (CPRM) |
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CPRM |
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CPRM |
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Repositório Institucional de Geociências - RIGEO |
collection |
Repositório Institucional de Geociências - RIGEO |
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