Mineral Geochemistry of Critical Elements Using Electron Microprobe from the Florida Canyon Project-Amazonas Region
DOI:
https://doi.org/10.47347/incasciences.v1i2.24Keywords:
Mississippi Valley Type (MVT) Deposit, Zn-Pb Mineralization, Electron Microprobe Analysis (EPMA), Statistical Treatment of Geochemical DataAbstract
The Florida Canyon deposit, in the Amazonas region, is a Mississippi Valley Type (MVT) deposit and hosts Zn-Pb mineralization. Through a selective sampling of 13 samples from the Karen Milagros and San Jorge sectors, petromineragraphic studies, SEM, EPMA and subsequent statistical treatment of the results have been carried out, obtaining for the Karen Milagros sector the strongest Zn-S-Fe-Se association. The second cluster in turn has 2 associations: Ge-Ag-Ga, and Sn-Hg-In-Pb-Sb. For the II sphalerites from the San Jorge sector, the same association is observed as for the sphalerites from the Karen Milagros sector with respect to the two main clusters. Differences are observed in the secondary clusters, in this case there being a greater association between the Se-Cu than with the Cu-Cd of the Karen Milagros sphalerites. Differences are also observed in the second cluster, now finding the Sb-Pb association and the In-Sn association, in contrast to the Sn-Hg and (In-Pb)-Sb association of the Karen Milagros sphalerites. The control of the temperature in the composition is particularly marked for the Karen Milagros sector, in which the highest Ge values are observed for the lower temperature sphalerites.
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Copyright (c) 2023 Alonso Marchena Campos, Victor Torres Bazán, Magno Silva Quispe, Michael Valencia Muñoz, Maryuri Nole Valdez, Jorge Chira Fernandez, William Martinez Valladares, Luis Quispe Rentería
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