Page 9 - The Geology and Ore Deposits of Sierra County, New Mexico - Bulletin 10

CONTENTS 7 PART II, MINING DISTRICTS—Continued
Lake Valley Hills—Continued Macho district
184 Location and area ------------------------------------------------184 Geography --------------------------------------------------------184 Geology 18 Structural relations 185 Ore deposits 185 History and production ------------------------------------------ 186 Mine workings 187 Secondary enrichment ------------------------------------------- 189 Possibilities of the district -------------------------------------------- 189 San Mateo Mountains ----------------------------------------- 190 Goldsborough district -----------------------------------------------190 Location and geography -------------------------------------------- 190 Geology 190 Ore deposits ---------------------------------------------------------------191 Workings -------------------------------------------------------------------191 Quartz Mountain district -------------------------------------------- 192 Mud Springs Mountains ------------------------------------------------193 Hot Springs district 193 Mine descriptions ---------------------------------------------------------194 Equator and Iron Reef Group --------------------------------- 194 Manganese (Ellis •claims) -----------------------------------194 Fra Cristobal Range ----------------------------------------------------194 Armendaris Grant -------------------------------------------------------- 194 Geography ------------------------------------------------------------------194 Geology 195 Ore deposits 196 Sierra Caballos --------------------------------------------------------197 Palomas Gap district ---------------------------------------------------- 197 Location and topography ---------------------------------------------- 197 Geology _ ----------------------------------------------------- 197 The rocks ---------------------------------------------------- 197 Pre-Cambrian rocks -------------------------------------------- 197 Blisssandstone --------------------------------------------------------197 El Paso limestone ------------------------------------------ 197 Montoya limestone ---------------------------------------------------197 Fusselman limestone ------------------------------------------- 197 Percha shale ----------------------------------------------------------198 Lake Valley limestone ------------------------------------------ 198 Magdalena limestone ------------------------------------------------198 Abo sandstone --------------------------------------------------- 198 Chupadera formation ---------------------------------------198 Mancos shale --------------------------------------------------------198 Igneous rocks ------------------------------------------------199 Structural relations -------------------------------------------------------199 Ore deposits ---------------------------------------------------------- 201 Vanadium deposits --------------------------------------------------------202 Location ------------------------------------------------------- 202 History ------------------------------------------------------------------202 Property of the Vanadium Mines Co. -------------------------- 203 Red Top vein ------------------------------------------------ 203 Galena-fluorite veins -------------------------------------------------- 204 Copper veins _ 207 Monument Mines Corp. property ------------------------------207 Lone Tree prospect ---------------------------------------------- 208 Caballos Mountain Mining & Leaching Co. property ----------- 208 Caballos Development and Mining Co. property ------------- 208