C O N T E N I

C O N T E N I

Consejo de Recursos Minerales i Consejo de Recursos Minerales CARTA GEOLOGICO – MINERA SALINA CRUZ E15-10, D15-1, ESCALA 1: 250,000 RESUMEN ........................................................................................................................................... 1 I. INTRODUCCION ................................................................................................................................ 6 I.1.- OBJETIVO DEL ESTUDIO .......................................................................................................................6 I.2. TRABAJOS PREVIOS ...............................................................................................................................6 I .3. MÉTODO DE TRABAJO ..........................................................................................................................8 II.- GEOGRAFÍA .................................................................................................................................... 8 II.1.- LOCALIZACIÓN DEL ÁREA ....................................................................................................................8 II.2.- ACCESO Y VÍAS DE COMUNICACIÓN....................................................................................................9 II. 3. FISIOGRAFÍA ..................................................................................................................................... 10 III.GEOLOGÍA ..................................................................................................................................... 11 III.1 MARCO GEOLÓGICO.......................................................................................................................... 11 III.2. ESTRATIGRAFÍA ................................................................................................................................ 12 III.2.1.Terreno Xolapa ........................................................................................................................... 12 Complejo Xolapa (pЄTpg CM) ........................................................................................................... 12 Batolito Xadani (Tm Gd) .................................................................................................................... 16 III.2.2.Bloque Chontal. .......................................................................................................................... 16 Arco Chontal (Jt Kn Vs) ...................................................................................................................... 16 Miembro Calcáreo (Kn Cz) ................................................................................................................ 18 Miembro Conglomerático (Kn Cgp) .................................................................................................. 18 Formación Teposcolula (Kace Cz-Do) ................................................................................................ 18 Formación Yucunama (Ktm Lm-Mg) ................................................................................................. 19 III.2.3. Bloque Mixtequita ..................................................................................................................... 19 Complejo Guichicovi (pTm CM) ........................................................................................................ 19 Batolito de la Mixtequita (PpTR Gr-Gd) ............................................................................................ 20 IV.2.4. Terreno Maya ............................................................................................................................ 21 Complejo Sierra de Juárez (PcPp E-Ms) ............................................................................................ 21 Macizo de Chiapas (PpTR Gr-Gd) ...................................................................................................... 21 III.2.4.a Depresión Ístmica................................................................................................................. 22 Formación Todos Santos? (Jm Lm- Ar) ............................................................................................. 22 Indeferenciado (JmKi E-F) ................................................................................................................. 24 Formación Mogoñe (Jco Cz-Lu). ........................................................................................................ 26 Metacalizas (Kapa MCz) .................................................................................................................... 27 III.2.4.b. Sierra de Chiapas. ............................................................................................................... 28 Formación Uxpanapa (Js Cz) ............................................................................................................. 28 Formación San Ricardo (Khb Ar-Lm) ................................................................................................. 28 Formación Sierra Madre (Kat Cz-Do) ................................................................................................ 29 Intrusivos Cretácicos (Ks(?) Gr-Gd). .................................................................................................. 30 Conglomerado Polimíctico- areniscas (Tpae Cgp-Ar). ...................................................................... 31 Formación Laollaga (Tem TA-A) ........................................................................................................ 31 i Carta Geológica Minera Salina Cruz E15-10, D15-1 Intrusivos Terciarios (Tom Gd) (Tm Gd) ............................................................................................ 33 III.2.4.c. Depósitos Continentales Cuaternarios ............................................................................... 34 Aluvión (Qal) ...................................................................................................................................... 34 Depósitos Palustres (Q pa). ............................................................................................................... 34 Depósitos de litoral (Qli). .................................................................................................................. 35 Depósitos eólicos (Qeo). ................................................................................................................... 35 III.3. GEOLOGÍA ESTRUCTURAL. ............................................................................................................... 35 II.3.1.Interpretacion del modelo digital de elevación ........................................................................... 35 III.3.2.- Interpretación de Imagen de Satélite. ...................................................................................... 36 III.3.3. Descripción de estructuras ........................................................................................................ 36 III.4. TECTÓNICA ....................................................................................................................................... 38 IV.- YACIMIENTOS MINERALES .......................................................................................................... 39 IV.I. METALICOS ....................................................................................................................................... 39 IV.I.1. Introducción ................................................................................................................................ 39 IV.I.2. Area Mineralizada Las Minas ..................................................................................................... 39 IV.I.3. Area Mineralizada Las Valencias ............................................................................................... 40 IV.I.4. Area Mineralizada Lachiguiri ..................................................................................................... 40 IV. 1.5. Area Mineralizada Lachivixa .................................................................................................... 42 IV. 1.6. Area Mineralizada Nizaduga .................................................................................................... 42 IV.1.7. Area Mineralizada Chipehua. .................................................................................................... 42 IV.1.8. Area Mineralizada La Ventosa .................................................................................................. 44 IV.1.9. Area Mineralizada El Carmen .................................................................................................... 45 IV.1.10. Area Prospectiva Zapotitlán. ................................................................................................... 45 IV.1.11. Area Prospectiva Chívela. ........................................................................................................ 46 IV.1.12. Area Prospectiva Chimalapa. .................................................................................................. 46 IV. II. NO METALICOS ................................................................................................................................ 46 IV.2.1 Introducción................................................................................................................................ 46 IV 2.2

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