Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, Argentina
Abstract: Volcanism and associated mineralization in the Cerro Tiporco area, San Luis province, Argentina. The Tiporco area is located west of the Cerros del Rosario volcanic field and 66 km northeast of San Luis city. In the Santa Isabel-Córdoba quarry, a pyroclastic sequence has been recognized (V...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | Spanish |
| Published: |
Instituto Superior de Correlación Geológica
2011-12-01
|
| Series: | Serie Correlación Geológica |
| Subjects: | |
| Online Access: | http://www.insugeo.org.ar/libros/cg_28-1/11.htm |
| _version_ | 1818543288696700928 |
|---|---|
| author | Ibañes, Oscar D. Sruoga, Patricia Urbina, Nilda E. Garro, José M. |
| author_facet | Ibañes, Oscar D. Sruoga, Patricia Urbina, Nilda E. Garro, José M. |
| author_sort | Ibañes, Oscar D. |
| collection | DOAJ |
| description | Abstract: Volcanism and associated mineralization in the Cerro Tiporco area, San Luis province, Argentina. The Tiporco area is located west of the Cerros del Rosario volcanic field and 66 km northeast of San Luis city. In the Santa Isabel-Córdoba quarry, a pyroclastic sequence has been recognized (Volcaniclastitas Lomitas) lying on sedimentary rocks which belong to the Miocene Santa Isabel Formation. The stratigraphic arrangement indicates a Pliocene age. Within the sequence, upper and lower units may be distinguished, encompassing co-ignimbrite lithic breccias, surges and ignimbrite deposits. The volcanism in this area is characterized by initial explosive activity, with recurrent ignimbritic eruptions and phreatomagmatic episodes (surges), ending with the emplacement of domes and associated lava flows (Tiporco and Lomita). Both the pyroclastics and the lavas represent near-vent facies. A well defined NW-SE fault system controlled the emplacement of the volcanics. The associated mineralization consists of calcareous onyx and aragonite veins, calcite veinlets and travertine manifestations. The latter indicate a paleosurface consistent with the superficial levels of an epithermal system and very scarce erosion. In consequence, it is possible to infer the presence of metalliferous manifestations at depth as part of the same hydrothermal system. |
| first_indexed | 2024-12-11T22:33:24Z |
| format | Article |
| id | doaj.art-a94cc9f7a667464da2c97f06badcbf18 |
| institution | Directory Open Access Journal |
| issn | 1514-4186 1666-9479 |
| language | Spanish |
| last_indexed | 2024-12-11T22:33:24Z |
| publishDate | 2011-12-01 |
| publisher | Instituto Superior de Correlación Geológica |
| record_format | Article |
| series | Serie Correlación Geológica |
| spelling | doaj.art-a94cc9f7a667464da2c97f06badcbf182022-12-22T00:48:03ZspaInstituto Superior de Correlación GeológicaSerie Correlación Geológica1514-41861666-94792011-12-0128I145156Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, ArgentinaIbañes, Oscar D.Sruoga, PatriciaUrbina, Nilda E.Garro, José M.Abstract: Volcanism and associated mineralization in the Cerro Tiporco area, San Luis province, Argentina. The Tiporco area is located west of the Cerros del Rosario volcanic field and 66 km northeast of San Luis city. In the Santa Isabel-Córdoba quarry, a pyroclastic sequence has been recognized (Volcaniclastitas Lomitas) lying on sedimentary rocks which belong to the Miocene Santa Isabel Formation. The stratigraphic arrangement indicates a Pliocene age. Within the sequence, upper and lower units may be distinguished, encompassing co-ignimbrite lithic breccias, surges and ignimbrite deposits. The volcanism in this area is characterized by initial explosive activity, with recurrent ignimbritic eruptions and phreatomagmatic episodes (surges), ending with the emplacement of domes and associated lava flows (Tiporco and Lomita). Both the pyroclastics and the lavas represent near-vent facies. A well defined NW-SE fault system controlled the emplacement of the volcanics. The associated mineralization consists of calcareous onyx and aragonite veins, calcite veinlets and travertine manifestations. The latter indicate a paleosurface consistent with the superficial levels of an epithermal system and very scarce erosion. In consequence, it is possible to infer the presence of metalliferous manifestations at depth as part of the same hydrothermal system.http://www.insugeo.org.ar/libros/cg_28-1/11.htmTiporcoSanta IsabelPlioceneVolcanismIgnimbritesCalcareous Onyx. |
| spellingShingle | Ibañes, Oscar D. Sruoga, Patricia Urbina, Nilda E. Garro, José M. Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, Argentina Serie Correlación Geológica Tiporco Santa Isabel Pliocene Volcanism Ignimbrites Calcareous Onyx. |
| title | Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, Argentina |
| title_full | Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, Argentina |
| title_fullStr | Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, Argentina |
| title_full_unstemmed | Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, Argentina |
| title_short | Volcanismo y mineralización asociada en el área del cerro Tiporco, provincia de San Luis, Argentina |
| title_sort | volcanismo y mineralizacion asociada en el area del cerro tiporco provincia de san luis argentina |
| topic | Tiporco Santa Isabel Pliocene Volcanism Ignimbrites Calcareous Onyx. |
| url | http://www.insugeo.org.ar/libros/cg_28-1/11.htm |
| work_keys_str_mv | AT ibanesoscard volcanismoymineralizacionasociadaenelareadelcerrotiporcoprovinciadesanluisargentina AT sruogapatricia volcanismoymineralizacionasociadaenelareadelcerrotiporcoprovinciadesanluisargentina AT urbinanildae volcanismoymineralizacionasociadaenelareadelcerrotiporcoprovinciadesanluisargentina AT garrojosem volcanismoymineralizacionasociadaenelareadelcerrotiporcoprovinciadesanluisargentina |