Download Figure 1-1. Index map of the Mimbres Resource Area

List of figures
(Certain discontinuities in the Figure number sequence exist)
Figure 1-1.
Index map of the Mimbres Resource Area, New Mexico.
Figure 1-2.
Federal and State lands, Mimbres Resource Area, New Mexico.
Figure 1-3.
Correlation chart of geologic units, Mimbres Resource Area, New Mexico.
Figure 1-4.
Pre-Laramide tectonic features, Mimbres Resource Area.
Figure 1-5.
Laramide tectonic features, Mimbres Resource Area.
Figure 1-6.
Post-Laramide tectonic features, Mimbres Resource Area.
Figure 1-7.
Simplified diagram of a caldera, showing depositional facies and structural
features.
Figure 1-8.
Hypothetical evolution of a caldera and post-caldera-formation events.
Figure 1-9.
Basin-and-Range tectonic features, Mimbres Resource Area.
Figure 1-10.
Structure map of the area northwest of Las Cruces, including the Black Range
uplift, Cobre uplift, Caballo uplift, Good Sight uplift, Cedar Hills uplift,
and Sierra de las Uvas dome.
Figure 1-11.
Young cinder cone located south of Interstate 10, Corralitos exit.
Figure 1-12.
Mining districts in the Mimbres Resource Area, southwest New Mexico.
Figure 1-13.
Rock house made of sandstone and rhyolite with clay mortar at the Gila Cliff
Dwellings National Monument , located in the Alum Mountain region,
Sierra County, north of the Mimbres Resource Area.
Figure 1-14.
Part of the new town of Tyrone, being built by the Phelps-Dodge Company,
circa 1915.
Figure 1-15A.
Arrastra (or arrastre) mills were crude devices for crushing rocks. They
consisted of a circular pit lined with rocks and a pole adjoined to a central
axis. The pole pulled a large boulder attached to the arm by a chain.
Mules or burros would turn the pole and the boulder would crush the ore in
the pit.
Figure 1-15B.
Stamp mills were the first mills that were widely used in New Mexico. They
consisted of reciprocating steel rods that pounded, or stamped, the ore.
Figure 1-16.
Mill locations, past and present, in the Mimbres Resource Area.
Figure 3-1.
Digital terrain map of the Mimbres Resource Area.
Figure 3-2.
Complete Bouguer gravity anomaly map, Mimbres Resource Area.
Figure 3-3.
Composite aeromagnetic map, Mimbres Resource Area.
Figure 3-4.
Maps showing seismic refraction and composite deep crustal velocity sections
in the southern Mimbres Resource Area.
Figure 3-5.
Comparison of depths to lithologic contacts from seismic velocity sections and
lithologic logs of drill holes.
Figure 3-6.
Correlation of seismic velocity and lithology in southwestern New Mexico.
Figure 3-7.
Map of seismic refraction shotpoints with complete Bouguer gravity anomaly
contours and drill-hole locations.
Figure 3-8.
Velocity section 1.
Figure 3-9.
Velocity section 2.
Figure 3-10.
Velocity section 3.
Figure 3-11.
Velocity section 4.
Figure 3-12.
Velocity section 5.
Figure 3-13.
Velocity section 7.
Figure 3-14.
Summary of geophysically inferred subsurface features.
Figure 3-15.
Potassium aeroradioactivity map of the Mimbres Resource Area.
Figure 3-16.
Uranium aeroradioactivity map of the Mimbres Resource Area.
Figure 3-17.
Thorium aeroradioactivity map of the Mimbres Resource Area.
Figure 3-18.
Uranium:Potassium aeroradioactivity map of the Mimbres Resource Area.
Figure 3-19.
Uranium:Thorium aeroradioactivity map of the Mimbres Resource Area.
Figure 3-20.
Potassium:Thorium aeroradioactivity map of the Mimbres Resource Area.
Figure 4-1.1.
Generalized geology and NW-SE cross section through the Big Burro
Mountains in the vicinity of Burro Peak and Tyrone stock.
Figure 4-1.2.
Generalized geology of Gold Hill block.
Figure 4-1.3.
Generalized geology of the Knight Peak graben area.
Figure 4-1.4.
Structural setting near Santa Rita and Chino Mine.
Figure 4-2.1.
Generalized geology and locations of mines in the Big Hatchet Mountains
mining district, Hidalgo County.
Figure 4-2.2.
Geology of the Brockman Hills.
Figure 4-3.1.
Diagrammatic cross section through the Carrizalillo Hills.
Figure 4-3.2.
Generalized geologic map of the northern Cookes Range.
Figure 4-3.3.
Cross section through Mahoney Ridge and Gym Peak areas, southern Florida
Mountains.
Figure 4-3.4.
Generalized structure of the Good Sight Mountains and Sierra de las Uvas area.
Figure 4-3.5.
Generalized geology, showing faults, inferred faults, and stratigraphic column
of the Granite Hill area, southeastern Luna County.
Figure 4-3.6.
Generalized geology and structural map and south-north cross section A-A' of
the Klondike Hills, Luna County.
Figure 4-3.7.
Generalized geologic map of the Victorio Mountains and cross sections A-A'
and B-B’.
Figure 4-4.1.
West-southwest to east-northeast cross section through Bishop Cap.
Figure 4-4.2.
Onyx quarries, Cedar Hills depression.
Figure 4-4.3.
Cerro de Cristo Rey.
Figure 4-4.4.
Mesilla Valley viewed from the Cedar Hills depression looking to the east.
Radium Springs is in the middle distance with the Doña Ana Mountains
behind the town.
Figure 4-4.5
Doña Ana caldera.
Figure 4-4.6.
Generalized geology of the East Potrillo Mountains and cross sections A-A'.
Figure 4-4.7.
West-east cross section through the Rio Grande Valley near Interstate 70
showing the Jornada del Muerto, La Mesa, and Mesilla Valley surfaces.
Figure 4-4.8.
View toward the east of dipslope (to the west) in Paleozoic rocks, San Andres
Mountains, north of Organ.
Figure 4-4.9.
Precambrian metamorphic rocks (light) are unconformably overlain by tilted,
bedded Paleozoic sedimentary sequences, Bear Canyon,White Sands
Missile Range.
Figure 4-4.10. North-south diagrammatic sections showing thickness variation of pre-Permian
units above Precambrian basement, and Permian and post-Permian units.
Figure 4-4.11. East side of Organ batholith, Organ Mountains, 9 km south of Organ.
Figure 4-4.12. Feldspathoidal basalt lava fields and related rocks, structural features, and test
wells, Doña Ana County and adjacent parts of Luna County.
Figure 4-4.13. Aden Crater (flat-topped feature in middle distance) surrounded by basaltic lava
flows.
Figure 4-4.14. Profile of Aden crater.
Figure 4-4.15. Diagrammatic profile and cross-section of the Rio Grande Valley and piedmont
slope east of Las Cruces.
Figure 4-4.16. Generalized geology of the Robledo Mountains.
Figure 4-4.17. East-west cross-section through the southern part of the Rough and Ready Hills,
Doña Ana County.
Figure 4-4.18. Geologic map and cross sections, Tortugas Mountain, Doña Ana County.
Figure 4-4.19. Malpais maar, southern Doña Ana County.
Figure 4-4.20. Doña Ana caldera.
Figure 4-4.22. West-east cross section through the Rio Grande Valley near Interstate 70
showing the Jornada del Muerto, La Mesa, and Mesilla Valley surfaces.
Figure 4-4.25A. North-south diagrammatic sections, Oscura Mountains to Franklin Mountains,
showing thickness variations of pre-Permian units above Precambrian
basement.
Figure 4-4.25B. North-south diagrammatic sections, Oscura Mountains to Franklin Mountains,
showing thickness variations of Permian and post-Permian units.
Figure 4-4.26. Feldspathoidal basalt lava fields and related rocks, structural features, and test
wells, Doña Ana County and adjacent parts of Luna County.
Figure 4-4.27. Feldspathoidal basalt lava fields and related rocks, structural features, and test
wells, Doña Ana County and adjacent parts of Luna County.
Figure 4-4.32. Geologic map and cross sections, Tortugas Mountain, Doña Ana County.
Figure 5-1.1
Mines and prospects in the Alum Mountain mining district.
Figure 5-1.2.
Locations of mines and prospects in the Caprock Mountain mining district,
Grant County.
Figure 5-1.3.
Mines and prospects in the Ricolite mining district, Grant County.
Figure 5-1.4.
Mines and prospects in the Black Hawk mining district, Grant County.
Figure 5-1.5.
Mines and prospects in the Cora Miller mining district, Grant County.
Figure 5-1.6.
Jimmy Reed fluorite mine, looking west, Wild Horse Mesa area, Telegraph
district, Grant County.
Figure 5-1.7.
Silicification along a fault in the Wild Horse Mesa area, Telegraph district,
Grant County.
Figure 5-1.8.
Feldspar in White Top pegmatite, Gold Hill mining district, Grant County.
Figure 5-1.9.
Microlite and smarskite in feldspar at South pegmatite, Grant County.
Figure 5-1.10. Mines and prospects in the Carpenter mining district, Grant County.
Figure 5-1.11A. Turquoise deposit in the Eureka district.
Figure 4-1.11B. Vein with iron oxides in ash-flow tuff in pit, Eureka District.
Figure 5-1.12A. Robinson-Porterfield turquoise mine and Azure claim, Turqoise Mountain, in
the Little Hatchet Mountains, Eurika District.
Figure 5-1-12B. Porterfield Mine.
Figure 5-1.13. Azure Mining Company's turquoise mine, Big Burro Mountains, Eureka
district. View to the northeast along the strike of Mineral vein southwest
of Copper King Mine. Quartz-pyrite-chalcopyrite vein deposits produced
blue and green turquoise in bands up to 2 m wide in volcanic rocks.
Turquoise mine open-cut and the dump are in the middle distance; Copper
King mine is nearby.
Figure 5-1.14. Mines and prospects in the Wilcox mining district, Grant and Catron Counties.
Figure 5-1.15. Ground Hog vein, San Jose claim.
Figure 5-1.16. Santa Rita pit from the north, circa 1910.
Figure 5-1.17. Gossan at Continental Mine (circa 1910) located on the Barringer fault.
Figure 5-1.18. Diagrammatic sketch showing mineralization patterns in Laramide skarn
deposits in southern New Mexico.
Figure 5-1.19. Chalcopyrite in skarn at the Continental pit, Fierro-Hanover district, Grant
County.
Figure 5-1.20. Barringer fault in the Continental pit, Fierro-Hanover district, Grant County.
Figure 5-1.21. Locations of mines and prospects in the Fleming mining district, Grant County.
Figure 5-1.22. Open cut at the Old Man mine, Fleming district.
Figure 5-1.23. Mines at Georgetown near the turn of the century, Georgetown district.
Figure 5-1.24. View across the Gila River to the Gila Fluorspar District and the access road to
the mines.
Figure 5-1.25. Clum shaft, Gila Fluorspar District, July 22, 1945.
Figure 5-1.26. Aguilar (Blue Benny) mine, a fluorspar deposit, produced 236 short tons of ore
from 1944 to 1945 along a 100-ft adit.
Figure 5-1.27. Chalcopyrite-galena ore pod in skarn at Piños Altos Mine (Cyprus Metals),
Piños Altos district.
Figure 5-1.28. Santa Rita pit looking south from overlook in 1995.
Figure 5-1.29A.
Santa Rita mine in 1910.
Figure 5-1.29B.
Romero mine in 1910.
Figure 5-1.30. Locations of mines and prospects in the Steeple Rock mining district, Grant
County.
Figure 5-1.31. Steeple Rock and Carlisle Mine in 1916, after the closures of most mines in the
district.
Figure 5-2.1.
Map of the mines and prospects in the Gillespie mining district, Hidalgo
County.
Figure 5-2.2.
Abandoned fluorspar mill, Winkler anticline.
Figure 5-2.3.
Red Hill mine, Gillespie mining district, showing vein.
Figure 5-2.4.
Gillespie mine, Gillespie mining district.
Figure 5-2.5.
Locations of mines and prospects in the Rincon mining district.
Figure 5-2.6.
Sylvanite, on June 24, 1909, after the one-year boom. Hill to the right is
capped by sedimentary rocks, and the lower slopes are composed of diorite.
Figure 5-2.7.
View of the open cut at Gold Hill Mine, Sylvanite district, on June 24, 1909.
The mine consisted of three adits with production from Laramide vein
deposits in the Hell-to-Finish Formation.
Figure 5-2.8A. Eagle Point mine, Sylvanite district, Hidalgo County. Adit with adjacent
unaltered limestone and skarn.
Figure 5-2.8B. Eagle Point mine, Sylvanite district, Hidalgo County. Closeup of W-Cu-Pb
skarn.
Figure 5-2.9.
Map of the mines and prospects in the Granite Gap mining districts, Hidalgo
County.
Figure 5-2.10. Mines and prospects in the McGhee Peak mining district, Hidalgo County.
Figure 5-2.11. Map of the Silver Tip mining district, Hidalgo County.
Figure 5-2.12. Mines and prospects in the Lordsburg mining district, Hidalgo County.
Figure 5-2.13. Drusy breccia ore, Eighty-five Mine, Lordsburg district.
Figure 5-2.14. Atwood Mine, Lordsburg district, about 1938.
Figure 5-2.15. Looking toward Lee Peak and the outcrop on the skyline of the Florence MayLone Star-Summit vein, Lordsburg mining district, Hidalgo County.
Figure 5-2.16A. Great Eagle Mining Company's fluorspar mine, about 50 km north of
Lordsburg at the mouth of the Gila River.
Figure 5-2.16B. Great Eagle Mining Company's fluorspar mine, showing bunkers and ore.
Figure 5-2.17. Apache No. 2 mining district, Hidalgo County.
Figure 5-3.1A. Mines, prospects, and assay values, Carrizalillo mining district.
Figure 5-3.1B. Mines, prospects, and assay values, Carrizalillo Hills mining district.
Figure 5-3.2.
Adit at a manganese mine, Little Florida Mountains, with layered volcanic
agglomerate forming a cliff in the background.
Figure 5-3.3.
Mines and prospects in the Camel Mountain-Eagle Nest district.
Figure 5-3.4.
Camel Mountain, looking north.
Figure 5-3.5.
Vein containing calcite, quartz, siderite, galena, and pyrite striking east-west at
Eagle Nest Hill.
Figure 5-3.6.
Mines and prospects in the Tres Hermanas mining district.
Figure 5-3.7.
Mines and prospects in the Victorio mining district, Luna County.
Figure 5-3.8.
Closeup view of a one-m wide vein in limestone at Mine Hill, Victorio mining
district.
Figure 5-3.9.
Fissure vein in limestone at the Parole mine, Mine Hill, Victorio mining district.
Figure 5-4.1.
Mines and prospects in the Potrillo Mountains, Doña Ana County.
Figure 5-4.2.
Map of Copiapo jarosite mine, showing underground workings.
Figure 5-4.3.
Mines and prospects in the Bear Canyon district, Doña Ana County.
Figure 5-4.4.
Barite deposit in Proterozic rocks, Bear Canyon district.
Figure 5-4.5.
District zoning in the Organ Mountains, Doña Ana County.
Figure 5-4.6.
Stephenson-Bennett Mine and Mill, circa 1890.
Figure 5-4.7.
Gold-silver veins in Proterozoic granite and diabase at the Rock of Ages mine at
Mineral Hill in the Organ Mountains district.
Figure 5-4.8.
Galena pockets in limestone at the Modoc mine, Organ Mountains district.
Figure 5-4.9.
Modoc Mine and Mill, Organ Mountains, circa 1910.
Figure 5-4.10A. Bishop Cap. View of abandoned mines.
Figure 5-4.10B. Banded calcite, fluorite, and manganese oxides at the Bishop Cap mine.
Figure 5-4.11. Simplified geologic sketch and plan map of the Green Crawford mines, Doña
Ana County.
Figure 5-4.12. Mines and prospects in the Rincon district, Doña Ana County.
Figure 5-4.13. View looking to the northeast of the Upper and Lower Palm Park barite mines,
Rincon district, Doña Ana County.
Figure 6-1.
Diagram showing how the flow of information from field studies is applied to
selection of deposit model and delineation of tracts on the mineral resource
map.
Figure 6-2.
Diagram showing how quantitative mineral resource assessment is derived from
the mineral resource map, estimation of the number of undiscovered
deposits, and worldwide grade and tonnage data.
Figure 6-3.
Estimated tonnages of mineral deposit types in the Mimbres Resource Area
ranked by the median size.
Figure 6-4.
Probability estimates of expected tonnages of metals and mineralized material
in porphyry copper-molybdenum and porphyry molybdenum, low fluorine
deposits.
Figure 6-5AH. Probability estimates of expected tonnages of metals and mineralized material
in undiscovered carbonate-hosted deposits.
Figure 6-7.
Probability estimates of expected tonnages of metals and mineralized material
in undiscovered metallic vein deposits. (A) Polymetallic vein (B) Au-AgTe veins
Figure 6-8 A-D.
Probability estimates of expected tonnages of metals and mineralized
material in undiscovered epithermal deposits.
Figure 6-9.
Probability estimates of expected tonnages of metals and mineralized material
in undiscovered volcanogenic massive sulfide deposits.
Figure 6-10.
Probability estimates of expected tonnages of metals and mineralized material
in undiscovered rhyolite-hosted tin deposits.
Figure 6-11.
Probability estimates of expected tonnages of metals and mineralized material
in undiscovered gold placer deposits.
Figure 6-12.
Probability estimates of expected tonnages of metals and mineralized material
in undiscovered sediment-hosted copper deposits.
Figure 6-13.
Probability estimates of expected total tonnages of metals and mineralized
material in undiscovered mineral deposits in the Mimbres Resource Area.
Figure 7-1.
Flow diagram showing process to conduct asessment of crushed stone
resources.
Figure 7-2.
Flow diagram showing process to conduct assessment of sand and gravel
resources.
Figure 7-3.
Availability and relative quality of potential bedrock sources of crushed stone in
the Mimbres Resource Area.
Figure 7-4.
Availability and relative quality of potential sources of sand and gravel in the
Mimbres Resource Area.
Figure 7-5.
Minimum thickness in meters of sand and gravel deposits in alluvial fans.
Figure 7-6.
Minimum thickness in meters of sand and gravel deposit in pits and quarries
found in terraces along the Rio Grande Valley.
Figure 7-7.
Dorsey meerschaum mine, Bear Canyon, about 1908.
Figure 7-8.
Gypsum resources in the Mimbres Resource Area.
Figure 7-9.
Gypsum occurrence in a canyon 5 kn northeast of Santa Rita.
Figure 7-10.
Known perlite occurrences in the Mimbres Resource Area.
Figure 7-11.
Scoria localities, Mimbres Resource Area.
Figure 7-12.
Mines in the Mimbres Resource Area from which pumice production has been
recorded.
Figure 7-13.
Zeolite localities in Tertiary volcaniclastic rocks, Mimbres Resource Area.
Figure 7-14.
Natural exposure of multiple-bedded market tuff in a lacustrine facies of the
Gila Conglomerate about 2.7 km southeast of Buckhorn, Grant County.
Figure 7-15.
Scanning-electron micrograph showing radial aggregates of tabular
clinoptilolite in the marker tuff of the Gila Conglomerate.
Figure 7-16.
Scanning electron micrograph showing well-formed rhombohedra of chabazite
in the lower part of the marker tuff of the Gila Conglomerate.
Figure 7-17.
Roadcut exposure of clinoptilolite-bearing Oligocene tuffs along State Route
61.
Figure 7-18.
Scanning-electron micrograph showing tabular to play clinotilolite in an
Oligocene lapilli tuff.
Figure 7-19.
Different types of geothermal environments in the Earth’s upper crust.
Figure 7-20.
Geothermal occurrences in the Mimbres Resource Area.
Figure 7-21.
Heat flow in megawatts per square meter, southwestern New Mexico and
adjacent areas.
Figure 7-22.
Uranium occurrences in the Mimbres Resource Area.
Figure 7-23.
Correlation chart of Cretaceous and early Tertiary units in southwestern and
south-central New Mexico.