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Mineralogía de skarn y fluidos asociados a los yacimientos de Cu-Zn-Ni-Co de La Esperanza, Sonora, México
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pérez-Segura, Efrén González-Partida, Eduardo |
| Copyright Year | 2010 |
| Abstract | The La Esperanza deposits in Sonora contain a metallic Cu-Zn-Ni-Co paragenesis, which is singular in the metallogenetic setting of northwestern Mexico. The mineralization is related to a contact metamorphic halo developed between a 89-90 Ma porphyry and late Paleozoic carbonated rocks. These skarn-type deposits, are characterized by a prograde stage represented by calcic garnet and pyoxene, and a retrograde stage contaning calcite, epidote, quartz, chlorite, feldspar and sulfides. Ore minerals are chalcopyrite, sphalerite, pyrite, siegenite (Ni,Co)3S4, hematite, and magnetite. Fluid inclusions data from garnet (prograde skarn) indicate a fluid with 12.8-20.2 % NaCl eq. and homogenization temperatures |
| Starting Page | 1 |
| Ending Page | 17 |
| Page Count | 17 |
| File Format | PDF HTM / HTML |
| Volume Number | 27 |
| Alternate Webpage(s) | http://satori.geociencias.unam.mx/27-1/(01)PerezSegura.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |