Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia
The Santa Lucia porphyritic stock is located in Cauca department, in the western flank of the central cordillera, specifically in the Santa Lucia rural settlement of La Sierra municipality. It corresponds to a hypoabyssal body from the Miocene age which intrudes basalts form Barroso - Amaime complex...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia - UPTC
2009
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/892 |
| _version_ | 1801706678228353024 |
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| author | Gómez-Gutiérrez, Diego Felipe Molano-Mendoza, Juan Carlos |
| author_facet | Gómez-Gutiérrez, Diego Felipe Molano-Mendoza, Juan Carlos |
| author_sort | Gómez-Gutiérrez, Diego Felipe |
| collection | OJS |
| description | The Santa Lucia porphyritic stock is located in Cauca department, in the western flank of the central cordillera, specifically in the Santa Lucia rural settlement of La Sierra municipality. It corresponds to a hypoabyssal body from the Miocene age which intrudes basalts form Barroso - Amaime complex; it is probably inclined in predominant northeast direction. This characterization is based on the log of 5 vertical drillings made and located by the Japan International Cooperation Agency (JICA), in agreement to the reported geophysical anomalies for the area of study. The stock presents mineralogical and hydrothermal characteristics proper of porphyritic gold-copper deposits, and it is genetically related to the emplacement of 4 intrusive pulses of variable composition between dacite-andesite. They are contained in 2 intrusive phases: an early phase characterized by presenting dominant potassic- biotitic alteration and veinlet typical of high temperature (type M, A, EB, B) which presents the major economic interest in the system; and a postmineral phase with dominant propylitic alteration and typical veinlet (type B, D, CI+Ep) located in the interior part of the deposit. The porphyritic stock presents overprint of veinform systems in the south of the deposit; they correspond preliminarily to low-sulfidation epithermal features. Given the present characteristics in the deposit, its presence is associated to the metallogenic miocene belt existing in the southwestern part of Colombia. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-892 |
| institution | Revista Ingeniería, Investigación y Desarrollo |
| language | spa |
| publishDate | 2009 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia - UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-8922017-09-07T23:41:12Z Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia Caracterización de zonas de alteración y fases intrusivas para el prospecto “Stock de Piedra Sentada” (Vereda Santa Lucía) Cauca, Colombia Gómez-Gutiérrez, Diego Felipe Molano-Mendoza, Juan Carlos hidrotermal alteration intruding phases log porphyry Santa Lucia alteración hidrotermal fases intrusivas logueo pórfido Santa Lucía The Santa Lucia porphyritic stock is located in Cauca department, in the western flank of the central cordillera, specifically in the Santa Lucia rural settlement of La Sierra municipality. It corresponds to a hypoabyssal body from the Miocene age which intrudes basalts form Barroso - Amaime complex; it is probably inclined in predominant northeast direction. This characterization is based on the log of 5 vertical drillings made and located by the Japan International Cooperation Agency (JICA), in agreement to the reported geophysical anomalies for the area of study. The stock presents mineralogical and hydrothermal characteristics proper of porphyritic gold-copper deposits, and it is genetically related to the emplacement of 4 intrusive pulses of variable composition between dacite-andesite. They are contained in 2 intrusive phases: an early phase characterized by presenting dominant potassic- biotitic alteration and veinlet typical of high temperature (type M, A, EB, B) which presents the major economic interest in the system; and a postmineral phase with dominant propylitic alteration and typical veinlet (type B, D, CI+Ep) located in the interior part of the deposit. The porphyritic stock presents overprint of veinform systems in the south of the deposit; they correspond preliminarily to low-sulfidation epithermal features. Given the present characteristics in the deposit, its presence is associated to the metallogenic miocene belt existing in the southwestern part of Colombia. El stock porfirítico de Santa Lucía se encuentra localizado en el Departamento del Cauca, en el flanco occidental de la cordillera central, específicamente en la vereda Santa Lucía, del municipio de La Sierra. Corresponde a un cuerpo hipoabisal de edad miocénica, que intruye basaltos del complejo Barroso - Amaime, y que probablemente se encuentra inclinado en dirección predominantemente NE. Esta caracterización se basa en el logueo de 5 sondeos verticales realizados y localizados por la Japan International Cooperation Agency (JICA), de acuerdo con las anomalías geofísicas reportadas para el área de estudio. El stock presenta características mineralógicas y de alteración hidrotermal propias de depósitos porfiríticos Au-Cu, y se encuentra relacionado genéticamente al emplazamiento de 4 pulsos intrusivos de composición variable entre dacita-andesita. Estos se agrupan en dos fases intrusivas: una fase temprana caracterizada por presentar alteración potásica-biotítica dominante y vetilleo típico de alta temperatura (tipo M, A, EB, B), que presenta el mayor interés económico en el sistema, y una fase postmineral con alteración propilítica dominante y vetilleo típico (tipo B, D, Cl+Ep) localizado hacia el interior del depósito. El Stock porfirítico presenta sobreimposición de sistemas vetiformes hacia el sur del depósito, que corresponden preliminarmente a rasgos epitermales de baja sulfuración. Dadas las características presentes en el depósito, se asocia su presencia con una faja metalogénica del mioceno presente hacia el suroccidente de Colombia. Universidad Pedagógica y Tecnológica de Colombia - UPTC 2009-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/892 Ingeniería Investigación y Desarrollo; Vol. 8 No. 1: enero-junio de 2009; 24-34 Ingeniería Investigación y Desarrollo; Vol. 8 Núm. 1: enero-junio de 2009; 24-34 2422-4324 1900-771X spa https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/892/891 Derechos de autor 2009 Ingeniería Investigación y Desarrollo |
| spellingShingle | hidrotermal alteration intruding phases log porphyry Santa Lucia alteración hidrotermal fases intrusivas logueo pórfido Santa Lucía Gómez-Gutiérrez, Diego Felipe Molano-Mendoza, Juan Carlos Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia |
| title | Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia |
| title_alt | Caracterización de zonas de alteración y fases intrusivas para el prospecto “Stock de Piedra Sentada” (Vereda Santa Lucía) Cauca, Colombia |
| title_full | Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia |
| title_fullStr | Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia |
| title_full_unstemmed | Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia |
| title_short | Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia |
| title_sort | characterization of alteration zones and intrusive phases for the prospectus stock of piedra sentada saint lucia cauca colombia |
| topic | hidrotermal alteration intruding phases log porphyry Santa Lucia alteración hidrotermal fases intrusivas logueo pórfido Santa Lucía |
| topic_facet | hidrotermal alteration intruding phases log porphyry Santa Lucia alteración hidrotermal fases intrusivas logueo pórfido Santa Lucía |
| url | https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/892 |
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