The main objective of this study was the rare earth mineralogical characterization of samples from mineral deposits in central Peru. To determine the mineralogical composition, the light microscopy technique was used by means of a reflected light polarization microscope and for the analysis of the rare earth bearing minerals, the mass spectrometry method (ICP-MS) technique, which is used for the study of materials loose or rare earths. The microscopic analysis of the samples from the mineral deposits of Milpo (Pilar Mine), Chungar and Mina Raúl determined the mineralogical composition made up of mineral species, such as pyrite, sphalerite, galena, chalcopyrite, marcasite, magnetite, pyrrhotite, goethite, tetrahedrite, bornita, covelita and bargains. The study of the samples applying the ICP MS technique confirmed the presence of rare earth elements such as cerium (ce), dysprosium (...

This work presents the petrographic analysis of the sandstones belonging to the Cushabatay Formation (Lower Cretaceous) in the Tangarana1 well, in the Marañón Basin (Loreto, Peru), which was carried out using optical microscopy and electron microprobe techniques for the measurement of detailed petrographic and textural characteristics to determine its reservoir rock conditions. The petrographic results correspond to quartz-sandstone type sandstones, with a high percentage of quartz (> 95%) and a low percentage of feldspars and rock fragments, with a grain size from medium to coarse, with a degree of roundness from sub-rounded to sub-angular and moderate selection, clay matrix and clay cements, calcite, siderite, anhydrite, and iron oxides. The porosity values ​​in the Cushabatay sandstones vary from 7% to 14%, observing a good correspondence between the values ​​measured in ...

The main objective of this study was the rare earth mineralogical characterization of samples from mineral deposits in central Peru. To determine the mineralogical composition, the light microscopy technique was used by means of a reflected light polarization microscope and for the analysis of the rare earth bearing minerals, the mass spectrometry method (ICP-MS) technique, which is used for the study of materials loose or rare earths. The microscopic analysis of the samples from the mineral deposits of Milpo (Pilar Mine), Chungar and Mina Raúl determined the mineralogical composition made up of mineral species, such as pyrite, sphalerite, galena, chalcopyrite, marcasite, magnetite, pyrrhotite, goethite, tetrahedrite, bornita, covelita and bargains. The study of the samples applying the ICP MS technique confirmed the presence of rare earth elements such as cerium (ce), dysprosium (...

El Pongo de Mainique se encuentra ubicado en la parte sur de la Cuenca Ucayali en el departamento de Cuzco, provincia de la Convención. Esta constituido por una secuencia sedimentaria de 9270 metros de espesor, cuya edad varía del Carbonífero hasta el Cuaternario. El intervalo sedimentario del Carbonífero al Pérmico ha sido analizado palinológicamente en el presente trabajo. En base al análisis cualitativo y cuantitativo de palinomorfos del Paleozoico identificados en la sección de campo del Pongo de Mainique, se ha diferenciado cuatro zonas palinológicas denominadas, Zona de Verrucosisporites-Densosporites, Zona de Potoniesporites, Zona de Protohaploxypinus, Zona de Vittatina - striatites. El número total de palinómorfos observados e identificados es de 90 generos de los cuales el 57% esta representado por esporas (Pteridophytas) y el 43% restante por monosacados y bisacados ...

Expone el análisis petrográfico de las areniscas pertenecientes a la Formación Cushabatay (Cretácico inferior) en el pozo Tangarana1 en la Cuenca Marañón (Loreto, Perú), el cual se llevó a cabo utilizando técnicas de microscopía óptica y microsonda electrónica para la medición de las características petrográficas y texturales detalladas para determinar sus condiciones de roca reservorio. Los resultados petrográficos corresponden a areniscas de tipo cuarzoareniscas, con alto porcentaje de cuarzo (>95%) y bajo porcentaje de feldespatos y fragmentos de rocas, con tamaño de grano de medio a grueso, con grado de redondez de subredondeados a subangulosos y moderada selección, matriz arcillosa y cementos de arcilla, calcita, siderita, anhidrita y óxidos de hierro. Los valores de porosidad en las areniscas Cushabatay varían de 7% a 14%, observándose una buena correspondencia...

The need to develop and know methods for metallurgical treatment to process gold-bearing refractory minerals or hard to treat be- cause of carbon contents, tellurium, antimony, arsenic, carbonates and gold in solution solid sulfides, forces us to study the different methods of specific oxidation that should be applied in each mineral before to leach ore to reach high recoveries into precious metals Through Gravimetrically followed by cyanidation is obtained 94.74% of gold extract in the studied mineral.

The need to develop and know methods for metallurgical treatment to process gold-bearing refractory minerals or hard to treat be- cause of carbon contents, tellurium, antimony, arsenic, carbonates and gold in solution solid sulfides, forces us to study the different methods of specific oxidation that should be applied in each mineral before to leach ore to reach high recoveries into precious metals Through Gravimetrically followed by cyanidation is obtained 94.74% of gold extract in the studied mineral.