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F.!F.F AREQUIPA - PER No Ej UNIVERSIDAD NACIONAL DE SAN AGUSTÍN DE AREQUIPA FACULTAD DE GEOLOGÍA, GEOFÍSICA Y MINAS ESCUELA PROFESIONAL DE INGENIERÍA GEOLÓGICA "GEOLOGÍA, PROFUNDIZACIÓN Y PROYECTO DE EXPLORACIÓN DE LA VETA MIRTHA" COMPAÑIA DE MINAS BUENAVENTURA S.A.A. DISTRITO DE TAPAY, PROVINCIA DE CAYLLOMA Y DEPARTAMENTO DE AREQUIPA" TESIS PRESENTADA POR EL BACHILLER: ALEX SAUL CALAPUJA CONDORI PARA OPTAR EL TITULO PROFESIONAL DE: INGENIERO GEOLOGO. UNSA- SAOI No. Doc ...fl:?.: .. !f:.f..:f.!f.f_ AREQUIPA - PER No Ej. __________ QL.~ .. f.~fhª!.-E? .13../.U2•. 2014 Firma Registrador. ....... ....... .. ... -......... DEDICATORIA A Dios, por concederme la dicha de la vida y todo lo que soy, por brindarme la sabiduría y el conocimiento de su palabra. Con todo mi cariño y amor, por inculcarme sus valores y sabios consejos en todo momento, a mi queridos padres Braulio y Juana. A mi adorable esposa Beatriz, por su apoyo incondicional y a mi hijo por su fuerza y energía, el que me hizo comprender lo maravilloso que es la vida de ser padre A mis queridos hermanos: Hilda, Wilber, Braulio y Ruby; Gracias por su paciencia y amor. AGRADECIMIENTOS El estudio de tesis titulado: " Geología, Profundización y proyecto de exploración de la Veta Mirtha en el proyecto Tambomayo" Distrito TAPA Y Provincia CA YLLOMA, Departamento AREQUIP A", no habría sido posible sin el apoyo de Compañía de Minas Buenaventura S.A.A. Por ello, mi mayor agradecimiento al Presidente de Directorio Ing. Roque Benavides Gamoza y al Gerente General de Geología Mes Ing. Julio Meza Paredes, al Gerente General de Tambomayo Ing. Renzo Macher Carmelino, y al Superintendente de Geología Tambomayo Ing. E. Gonzalo Mendoza Begazo. A los profesionales del área de exploraciones y Departamento de Geología, Así mismo agradezco de manera especial al grupo de profesionales que integran el laboratorio de Buenaventura Ingenieros (BISA), por la preparación de muestras y los respectivos análisis. A mi asesor académico, Ing. José cuadros Paz, por las observaciones y sugerencias para llevar a buen término éste trabajo de Tesis. RESUMEN ................................................................................... 01 , INTRODUCCION .......................................................................... 03 CAPTULOI GENERALIDADES 1.1.- UBICACIÓN .........................................................•................. 04 1.2.- ACCESIBILIDAD ........................ ~~· ................ ·.......................... ~~05 1.3.- RESEÑA HISTORICA DEL PROYECTO TAMBOMAYO................ 08 1.5.- TRABAJOS ANTERIORES ........................................................ 09 1.4.- OBJETIVOS ............................................................................09 1.6.- METODOLOGIA.................•.................................................... lO CAPITULOII GEOMORFOLOGÍA 2.1.- RASGOS GEOMORFOLOGICOS ..........................•..............•...... 12 2.1.1- Flanco Occidental Andino ....................................................•......12 2.1.2- Altiplanicies ....................................................•..............................13 2.1.3- Mesetas disectadas ..................................................•.....................13 2.1.4- Valles .....................................................................................13 2.2.- DRENAJE ....................................................•...........................13 2.3.- CLIMA Y VEGETACION................•......................................•.... 14 CAPITULOIII GEOLOGÍA REGIONAL 3.1.- GENERALIDADES ..•••...............••...•••........•.......•..•...•....•..•......••.•15·. 3.2.- ESTRATIGRAFIA........•.••.•..............•..•....••..•...........•.....•••....••...• 17 3.2.1.- Rocas sedimentarias del Mesozoico ....•........•.......•..•.....•..•.•...•.....•.•..17 3.2.2.- Grupo Y nra ..•..•..•...•.........................•..••..•.•.•..•.....•........•.....•..•.. 18 3.2.3.:- Formacion Morco .•..........•..........•••....................•........•..•.............18 3.2.4.- Formacion Arcurquina ...................•..•.......•...•........•..•.....•..•.....•..•18 3.2.5.- Rocas volcánicas del -Terciario •••••.••••••..•.•.....•...••.••.•...•.••.••.•..•........ 19 3.2.6.- Grupo Tacaza •...............•.............•...•....................•.....•............•. 19 3.2. 7.- Rocas volcánicas del Cuaternario .•.•...................•............................19 3.-2.8.- Depositos ~ecientes (Q-AL) ..•....................••.•..............................••..•19 CAPITULO IV GEOLOGÍA LOCAL 4.1.- (;~~~]]))ll)~s; •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••22 4.2.- ~STRA TIGRAFIA .•..•.••....•...•.....•..••.•....•....••.••...•..•...•..••.••.••.•...•.• 22 4.2.1.- Centro Volcanico Tambomayo ...••..•••.•..........•.......•.•....•..•...........••.22 4.2.1.1.- Rocas volcánicas Tambomayo ....•••••....•........•........•..•.......•...•.••..•. 25 4.2.1.2.- Toba....•...........•...•..........•.•............................•.........••••.•..•..•..• 27 4.2.1.3.- Brecha Volcánica con Fragmentos Ígneos ..•.....•......•.•........•.•....•.....28 4.2.1.4 Depósitos de flujos piroclásticos1íticos-pumiceos y cenizas .................. 28 4.2.2.- Intrusiones Porfiríticas y Dómicas •••••••••••.•••••••••••••••••••••••••••••••••••••••••• 29 4.2.2.1 Pórfido Diorítico .•....•.•......•...........................•..•••••••••..........•.....• 29 4.2.2.2 Domos Andesíticos a Traquiandesíticos ..•.•..•..................••.••••.•.•...... 30 4.2.2.3 Diques Andesíticos ..............•..•...•...•••........... ~ ..•......•••••.•....•....•.... 30 4.2.3 Vulcanismo Plioceno Superior-Pleistoceno ....•..•............•.......•....•...•.•.. 31 4.2.3.1 Volcánicos Kenkohuayco ..........••....•.•...•......••.................•...•.........31 4.2.3.2 Domo Riolítico Surihuiri y Fases Piroclásticas predomo ..•....•.•............ 32 4.2.3.3 Flujos del Grupo Barroso..•.............•.......•••.••••...•..•..••..........•...•.. 32 4~·2.3.4 Flujos Monogénicos Andahua .....••...•.•.•................••••...••.•........••.•• 33 4.3 Depósitos Recientes .•...................•......•....•..••••••••.•.•....•......•..•....•.....34 CAPITULO V GEOLOGÍA ESTRUCTURAL 5;1.- NIVEL REGIONAL •........•...............•....•.••..•..•.........•.•.••......•..•......39 5.1.1.- Fase Incaica...•......•.•.•....•....•..•.••..•..•....•••..•..•..•.....•••••........•..••..•. 39 5;1.2.- Fase Quechua 1 .•.•.•..•.....•....•........•.........••..•.•...••.•••...••••••..•..•.......40 5.1.3.- Fase Quechua 2 .•...•..•...•••.......•...•.....•....•...•••••.....•.•....•...•..•...•..•..40 5.1.4.- Estructuras Principales .•.•.•....•..•..•..•...••.•••....•.•••..•.•.••...•...••....•.•.•.40 5.2.- NIVEL LOCAL .•.••...•....•...•....•........•..•.•.••.••........•..........••.............42 5.2.1.- Fallas de Tensión ••..••...•.......••....•...•••••.............••.•........•..•....•..•....42 5.2.2.- Fallas de Cizalla ..•......•.•.•....•.••..............•....••.•.••.........•....••.......•.42 5.3.- Fallas Mineralizantes ••..••...••.•.•..•.•.......•.••..•••.•......•.•.••..•.••.•.•••.••.•. 45 CAPITULO VI GEOLOGÍA ECONÓMICA 6.1.- SISTEMAS PRINCIPALES DE VETAS .............................................50 6.1.1.- Sistema NW- SE (buzamiento S y N) .............................................. 50 6.1.2.- Sistema WSW - ENE (buzamiento N) .............................................. 50 6.1.3.- Sistema N- S (buzamiento E y W)................................................. 50 6.2.- MINERALOGIA........................................................................... 50 6.2.1.- Minerales de Mena (Principales) .................................................... 51 6.2.2.- Minerales de Ganga (Principales) ................................................... 55 6.2.3.- Otros Minerales ......................................................................... 57 6.3.- PARAGENESIS Y ZONEAMIENTO ................................................ 58 6.4.- TEXTURA...................•....•........................................................ 59 6.5.- GENESIS Y TIPO DE YACIMIENTO ............................................... 60 6.6.- PROCESO SUPERGENO .............................................................. 61 6.7.- ALTERACION HIPOGENA DE CAJA............................................. 61 6.8.- CONTROLES DE MINERALIZACION ............................................ 61 6.8.1.- Control Litológico ..........................•........................................... 61 6.8.2.- Control Estructural........... Gl •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 61 6.8.3.- Control Mineralógico ........................................................ o ••••••••• 62 6.9.- ESTRUCTURAS MINERALIZADAS ............................................... 63 6.9 .1.- Veta Mirtba........................ o ••••••••••••••••••••••••••••••••••••••••••••••••••••••63 6.9.2.- Veta Susy.................................................................................. 64 6.9.3.- Veta Erika .................................................................................64 6.9 .4.- Veta Paola ..........................•....................................•................65 6.9 .5.- Veta Paola N o rte .........................................................................65 6.10.- OTRAS ESTRUCTURAS POSIBLEMENTE MINERALIZADAS •........•65 6.11.- TIPO DE DEPÓSITO DE LA MINERALIZACION•..•.•.••••....•..•...•...•. 67 , 6.12.- ALTERACION HIDROTEMAL .................................................... 67 6.~12.1.- Illita- Sericita .........................................................................
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