Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western Mexico
In this work we describe for the first time the mineralogy and very briefly the possible origin of a banded Fe-Mn deposit associated with a Cretaceous volcanosedimentary sequence of the southern Guerrero terrane, near the sulfide massive volcanogenic deposit of La Minita. The deposit is confined wi...
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Universidad Nacional Autónoma de México
2018-07-01
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| Series: | Revista Mexicana de Ciencias Geológicas |
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| Online Access: | https://rmcg.unam.mx/index.php/rmcg/article/view/1010 |
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| author | Rodolfo Corona-Esquivel Fernando Ortega-Gutiérrez Margarita Reyes-Salas Rufino Lozano-Santacruz Miguel Angel Miranda-Gasca |
| author_facet | Rodolfo Corona-Esquivel Fernando Ortega-Gutiérrez Margarita Reyes-Salas Rufino Lozano-Santacruz Miguel Angel Miranda-Gasca |
| author_sort | Rodolfo Corona-Esquivel |
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In this work we describe for the first time the mineralogy and very briefly the possible origin of a banded Fe-Mn deposit associated with a Cretaceous volcanosedimentary sequence of the southern Guerrero terrane, near the sulfide massive volcanogenic deposit of La Minita. The deposit is confined within a felsic tuff unit; about 10 meters thick where sampled for chemical analysis. Using XRF, EDS and XRD techniques, we found besides todorokite, cryptomelane, quartz, romanechite (psilomelane), birnessite, illite-muscovite, cristobalite, chlorite, barite, halloysite, woodruffite, nacrite or kaolinite, and possibly hollandite-ferrian, as well as an amorphous material and two unknown manganese phases.
Although the manganese and iron minerals that characterize the La Hueca site were apparently somewhat altered by diagenetic or weathering processes, the combined evidence of finely banded to laminated structure, the abundant presence of Fe, Mn, Ba, Zn, and Si, and a mineralogy of probable primary originm here represented by hematite, jasper and manganese minerals enriched in zinc and barium, strongly support the interpretation that La Hueca is essentially of sedimentary origin, precipitated from hydrothermally metal-enriched solutions. The deposit is here interpreted as a distal exhalite derived from the same hydrothermal solutions that formed the barite-sulfides deposits of La Minita.
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| format | Article |
| id | doaj-art-e2c9044fbdb44f97ae37ae8478aa6943 |
| institution | OA Journals |
| issn | 1026-8774 2007-2902 |
| language | English |
| publishDate | 2018-07-01 |
| publisher | Universidad Nacional Autónoma de México |
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| series | Revista Mexicana de Ciencias Geológicas |
| spelling | doaj-art-e2c9044fbdb44f97ae37ae8478aa69432025-08-20T02:32:42ZengUniversidad Nacional Autónoma de MéxicoRevista Mexicana de Ciencias Geológicas1026-87742007-29022018-07-01172Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western MexicoRodolfo Corona-Esquivel0Fernando Ortega-Gutiérrez1Margarita Reyes-Salas2Rufino Lozano-Santacruz3Miguel Angel Miranda-Gasca4Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Delegación Coyoacán, 04510 D.F., MexicoInstituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Delegación Coyoacán, 04510 D.F., MexicoInstituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Delegación Coyoacán, 04510 D.F., MexicoInstituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Delegación Coyoacán, 04510 D.F., MexicoMinera BHP, S.A. de C.V., Plutarco E. Calles No. 13, Col. Club de Golf, Cuernavac Morelos, 62030, Mexico. In this work we describe for the first time the mineralogy and very briefly the possible origin of a banded Fe-Mn deposit associated with a Cretaceous volcanosedimentary sequence of the southern Guerrero terrane, near the sulfide massive volcanogenic deposit of La Minita. The deposit is confined within a felsic tuff unit; about 10 meters thick where sampled for chemical analysis. Using XRF, EDS and XRD techniques, we found besides todorokite, cryptomelane, quartz, romanechite (psilomelane), birnessite, illite-muscovite, cristobalite, chlorite, barite, halloysite, woodruffite, nacrite or kaolinite, and possibly hollandite-ferrian, as well as an amorphous material and two unknown manganese phases. Although the manganese and iron minerals that characterize the La Hueca site were apparently somewhat altered by diagenetic or weathering processes, the combined evidence of finely banded to laminated structure, the abundant presence of Fe, Mn, Ba, Zn, and Si, and a mineralogy of probable primary originm here represented by hematite, jasper and manganese minerals enriched in zinc and barium, strongly support the interpretation that La Hueca is essentially of sedimentary origin, precipitated from hydrothermally metal-enriched solutions. The deposit is here interpreted as a distal exhalite derived from the same hydrothermal solutions that formed the barite-sulfides deposits of La Minita. https://rmcg.unam.mx/index.php/rmcg/article/view/1010Mineralogy, La Hueca iron-manganese deposit, Michoacán, Mexico. |
| spellingShingle | Rodolfo Corona-Esquivel Fernando Ortega-Gutiérrez Margarita Reyes-Salas Rufino Lozano-Santacruz Miguel Angel Miranda-Gasca Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western Mexico Revista Mexicana de Ciencias Geológicas Mineralogy, La Hueca iron-manganese deposit, Michoacán, Mexico. |
| title | Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western Mexico |
| title_full | Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western Mexico |
| title_fullStr | Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western Mexico |
| title_full_unstemmed | Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western Mexico |
| title_short | Mineralogical study of the La Hueca Cretaceous Iron-Manganese deposit, Michoacán, south-western Mexico |
| title_sort | mineralogical study of the la hueca cretaceous iron manganese deposit michoacan south western mexico |
| topic | Mineralogy, La Hueca iron-manganese deposit, Michoacán, Mexico. |
| url | https://rmcg.unam.mx/index.php/rmcg/article/view/1010 |
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