Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay)
Resumen:
Mafic dykes of lamprophyric affinity cropping out along the coastal area of Montevideo city are described. These dykes trend N75º-85º and crosscut 2.1 Ga Paleoproterozoic metamorphic units of the Rio de la Plata craton. They show mainly porphyritic textures with phlogopite and clinopyroxene macrocrysts in a groundmass composed of carbonates, phlogopite, augite, and feldspathoids. Ocellar structures filled with leucite, carbonates, and fibrous alkaline amphibole are present. The mineralogical assembly allows their classification as lamprophyres (minettes), but according to their chemical nature, they can be classified as alkaline lamprophyres. A crystallization age of 1.42 Ga by Ar-Ar method (on biotite/phlogopite) was obtained.
| 2021 | |
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Lamprófidos Petrología Geocronología |
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| Inglés | |
| Universidad de la República | |
| COLIBRI | |
| https://hdl.handle.net/20.500.12008/38258 | |
| Acceso abierto | |
| Licencia Creative Commons Atribución (CC - By 4.0) |
| _version_ | 1807522796532662272 |
|---|---|
| author | Muzio Sauer, Rossana |
| author2 | Martino Rivero, Natalia Peel Canabal, Elena |
| author2_role | author author |
| author_facet | Muzio Sauer, Rossana Martino Rivero, Natalia Peel Canabal, Elena |
| author_role | author |
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| collection | COLIBRI |
| dc.contributor.filiacion.none.fl_str_mv | Muzio Sauer Rossana, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas. Martino Rivero Natalia, DINAMIGE (Uruguay) Peel Canabal Elena, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas. |
| dc.coverage.spatial.es.fl_str_mv | Uruguay |
| dc.creator.none.fl_str_mv | Muzio Sauer, Rossana Martino Rivero, Natalia Peel Canabal, Elena |
| dc.date.accessioned.none.fl_str_mv | 2023-07-20T18:26:40Z |
| dc.date.available.none.fl_str_mv | 2023-07-20T18:26:40Z |
| dc.date.issued.none.fl_str_mv | 2021 |
| dc.description.abstract.none.fl_txt_mv | Mafic dykes of lamprophyric affinity cropping out along the coastal area of Montevideo city are described. These dykes trend N75º-85º and crosscut 2.1 Ga Paleoproterozoic metamorphic units of the Rio de la Plata craton. They show mainly porphyritic textures with phlogopite and clinopyroxene macrocrysts in a groundmass composed of carbonates, phlogopite, augite, and feldspathoids. Ocellar structures filled with leucite, carbonates, and fibrous alkaline amphibole are present. The mineralogical assembly allows their classification as lamprophyres (minettes), but according to their chemical nature, they can be classified as alkaline lamprophyres. A crystallization age of 1.42 Ga by Ar-Ar method (on biotite/phlogopite) was obtained. |
| dc.format.extent.es.fl_str_mv | 12 h. |
| dc.format.mimetype.es.fl_str_mv | application/pdf |
| dc.identifier.citation.es.fl_str_mv | Muzio Sauer, R, Martino Rivero, N y Peel Canabal, E. "Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay)". Earth Sciences Research Journal. [en línea] 2021, 25(2): 157-168. 12 h. DOI: 10.15446/esrj.v25n2.89652 |
| dc.identifier.doi.none.fl_str_mv | 10.15446/esrj.v25n2.89652 |
| dc.identifier.issn.none.fl_str_mv | 2339-3459 |
| dc.identifier.uri.none.fl_str_mv | https://hdl.handle.net/20.500.12008/38258 |
| dc.language.iso.none.fl_str_mv | en eng |
| dc.publisher.es.fl_str_mv | Universidad Nacional de Colombia |
| dc.relation.ispartof.es.fl_str_mv | Earth Sciences Research Journal, 2021, 25(2): 157-168 |
| dc.rights.license.none.fl_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.es.fl_str_mv | Lamprófidos Petrología Geocronología |
| dc.title.none.fl_str_mv | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) |
| dc.type.es.fl_str_mv | Artículo |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/article |
| dc.type.version.none.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | Mafic dykes of lamprophyric affinity cropping out along the coastal area of Montevideo city are described. These dykes trend N75º-85º and crosscut 2.1 Ga Paleoproterozoic metamorphic units of the Rio de la Plata craton. They show mainly porphyritic textures with phlogopite and clinopyroxene macrocrysts in a groundmass composed of carbonates, phlogopite, augite, and feldspathoids. Ocellar structures filled with leucite, carbonates, and fibrous alkaline amphibole are present. The mineralogical assembly allows their classification as lamprophyres (minettes), but according to their chemical nature, they can be classified as alkaline lamprophyres. A crystallization age of 1.42 Ga by Ar-Ar method (on biotite/phlogopite) was obtained. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | COLIBRI_2eb6fa7030c37038c9aea6e6e4537eb6 |
| identifier_str_mv | Muzio Sauer, R, Martino Rivero, N y Peel Canabal, E. "Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay)". Earth Sciences Research Journal. [en línea] 2021, 25(2): 157-168. 12 h. DOI: 10.15446/esrj.v25n2.89652 2339-3459 10.15446/esrj.v25n2.89652 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | COLIBRI |
| network_name_str | COLIBRI |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/38258 |
| publishDate | 2021 |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | mabel.seroubian@seciu.edu.uy |
| repository.name.fl_str_mv | COLIBRI - Universidad de la República |
| repository_id_str | 4771 |
| rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| spelling | Muzio Sauer Rossana, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas.Martino Rivero Natalia, DINAMIGE (Uruguay)Peel Canabal Elena, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Ciencias Geológicas.Uruguay2023-07-20T18:26:40Z2023-07-20T18:26:40Z2021Muzio Sauer, R, Martino Rivero, N y Peel Canabal, E. "Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay)". Earth Sciences Research Journal. [en línea] 2021, 25(2): 157-168. 12 h. DOI: 10.15446/esrj.v25n2.896522339-3459https://hdl.handle.net/20.500.12008/3825810.15446/esrj.v25n2.89652Mafic dykes of lamprophyric affinity cropping out along the coastal area of Montevideo city are described. These dykes trend N75º-85º and crosscut 2.1 Ga Paleoproterozoic metamorphic units of the Rio de la Plata craton. They show mainly porphyritic textures with phlogopite and clinopyroxene macrocrysts in a groundmass composed of carbonates, phlogopite, augite, and feldspathoids. Ocellar structures filled with leucite, carbonates, and fibrous alkaline amphibole are present. The mineralogical assembly allows their classification as lamprophyres (minettes), but according to their chemical nature, they can be classified as alkaline lamprophyres. A crystallization age of 1.42 Ga by Ar-Ar method (on biotite/phlogopite) was obtained.Submitted by Faget Cecilia (lfaget@fcien.edu.uy) on 2023-07-20T17:43:00Z No. of bitstreams: 2 license_rdf: 19875 bytes, checksum: 9fdbed07f52437945402c4e70fa4773e (MD5) 1015446esrjv25n289652.pdf: 6682122 bytes, checksum: 5a82a42957aa5c0cc902282bd5c7aff3 (MD5)Approved for entry into archive by Faget Cecilia (lfaget@fcien.edu.uy) on 2023-07-20T17:44:25Z (GMT) No. of bitstreams: 2 license_rdf: 19875 bytes, checksum: 9fdbed07f52437945402c4e70fa4773e (MD5) 1015446esrjv25n289652.pdf: 6682122 bytes, checksum: 5a82a42957aa5c0cc902282bd5c7aff3 (MD5)Made available in DSpace by Luna Fabiana (fabiana.luna@seciu.edu.uy) on 2023-07-20T18:26:40Z (GMT). No. of bitstreams: 2 license_rdf: 19875 bytes, checksum: 9fdbed07f52437945402c4e70fa4773e (MD5) 1015446esrjv25n289652.pdf: 6682122 bytes, checksum: 5a82a42957aa5c0cc902282bd5c7aff3 (MD5) Previous issue date: 202112 h.application/pdfenengUniversidad Nacional de ColombiaEarth Sciences Research Journal, 2021, 25(2): 157-168Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)LamprófidosPetrologíaGeocronologíaPetrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay)Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionreponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaMuzio Sauer, RossanaMartino Rivero, NataliaPeel Canabal, ElenaLICENSElicense.txtlicense.txttext/plain; charset=utf-84267http://localhost:8080/xmlui/bitstream/20.500.12008/38258/5/license.txt6429389a7df7277b72b7924fdc7d47a9MD55CC-LICENSElicense_urllicense_urltext/plain; charset=utf-844http://localhost:8080/xmlui/bitstream/20.500.12008/38258/2/license_urla0ebbeafb9d2ec7cbb19d7137ebc392cMD52license_textlicense_texttext/html; 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- Universidad de la Repúblicafalse |
| spellingShingle | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) Muzio Sauer, Rossana Lamprófidos Petrología Geocronología |
| status_str | publishedVersion |
| title | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) |
| title_full | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) |
| title_fullStr | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) |
| title_full_unstemmed | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) |
| title_short | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) |
| title_sort | Petrologic features of mesoproterozoic lamprophyric dykes from Montevideo (Piedra Alta terrane, South Uruguay) |
| topic | Lamprófidos Petrología Geocronología |
| url | https://hdl.handle.net/20.500.12008/38258 |
