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| Bolivia, Bob Jenkins about turquoise localities in Chile, and Patricia Gray provided the information about...source of this gold was very probably in nearby quartz-gold veins. Another find of gold and copper foils...of cemented necklaces of sodalite, spondylus and quartz. According to Shida (1995), it probably carne from... Amethyst Amethyst beads, along with ordinary quartz, are quite common in the north, especially in the...being mined in the high mountains near Coquimbo in Chile, but the deposit has been known for justa few decades |
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| entirely within the Basin and Range physiographic province. Figure 1 shows the locations and names of the...deposits, although small base-metal and gold-silver-quartz veins are present locally. These veins are termed...plutons are composed of granodiorite, granite, and quartz diorite that are undeformed to foliated. Except...small and simple but some have been prospected for quartz, feldspar, and mica. The complex zoned pegmatites...intermediate composition. A few prospects containing quartz veins with associated traces of base metals or |
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| Southern Inyo Wilderness Study Area lies within a province characterized by hydrothermal deposits of gold...Magnetic boundary Mine-Number refers to table below Prospect Number refers to table below Mines and prospects...9 10 11 12 13 14 15 16 International Recovery prospect (Frostbitten, Ida) Spanish Belt prospects Reward...Spur mine (Union) Cheri No. 20 mine San Pablo prospect Burgess mine area Black Warrior mine area Long...discovered and mined before 1880. Gold-bearing quartz veins were discovered on the east side of the Inyo |
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| Mountains (Marion and Amethyst prospects and an unnamed prospect) are depleted in Zn and enriched in Mg and...horizons in the Broken Hill Domain of the Curnamona Province, Australia (e.g., Barnes et al. 1983, Plimer 1984)...(Salotti 1965, Spry & Scott 1986a) and an unnamed base-metal prospect near Round Mountain (Spry & Scott 1986a)...deposit, 9: Marion deposit, 10: Amethyst prospect, 11: Unnamed prospect, 12: Evergreen zone of hydrothermal...northeast-oriented Proterozoic tectonic provinces: the Yavapai Province composed of 1.7–1.8 Ga juvenile volcanic-arc crust |
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| Area is located between the Peninsular Ranges province on the west and the Yuha Desert on the east (fig...study area Myer Valley prospect Unnamed prospect Chain prospect Unnamed prospect White Christmas deposit...(Bronko claims) Stone quarry Unnamed Unnamed prospect Easy Pickins prospect White Hope limestone deposit...Schist prospect 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Weaver deposit Hematite prospect Unnamed...prospect Unnamed prospect Unnamed prospect Unnamed prospect Unnamed prospect Golden Alter prospect Unnamed |
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| accumulation of oil and gas. Basin and Range geomorphic province, with northsouth trending fault-bounded valleys... Past interest centered on locally mineralized quartz veins, but they contained no identified mineral...DIKES-Composition indicated by symbol PROMINENT JOINTS PROSPECT-Number refers to table 1 SINTER OR TUFA DEPOSITS...sinter or tufa deposits and quartz veins in granodiorite (table 1). Quartz veins at prospects in the study...ppm) was obtained from a sample collected at one prospect (fig. 2. no. 9), silver concentrations in other |
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| physiographic zone between the Peninsular Range province, the mountainous spine of Alta and Baja California...western part of the study area revealed pegmatite and quartz veins in pelitic schist (fig. 2), a geologic environment... EXPLANATION Stream-sediment sample site Unnamed prospect See table 1 for description Surficial deposits...are locally associated with gold in syntectonic quartz veins (Donnelly, 1934), while I-type granitic plutons...data and resource estimate Unnamed prospect A limonite-stained quartz v ein in schist. Vein averages |
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| silver, copper, mercury, and molybdenum resources in quartz veins along a fault near the east boundary of the...molybdenum, and uranium resources. A metamorphosed quartz diorite intrusion near the southeast boundary of...the northwestern Basin and Range physiographic province. The east flank of the Pueblo Mountains is very...cut by quartz veins. Geochemical analyses (Roback, 1986) indicate that the altered rocks and quartz veins...encompasses 41,315 acres in the Basin and Range geologic province of southeastern Oregon and northwestern Nevada |
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| resources in caldera moat-fill sedimentary rocks and quartz veins, and moderate potential for arsenic and mercury...in the northern Basin and Range physiographic province approximately 50 mi west of Boise, Idaho, and...rhyolite intrusions are locally brecciated and cut by quartz veins. Geochemical analyses indicate that the brecciated...the north-central Basin and Range physiographic province of eastern Oregon. The area is located adjacent...claim 2. Pinto claim 3. unnamed prospect 4. Wild Horse mine 5. unnamed prospect 6. Madonna No. 3 claim |
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| The given name for the occurrence or deposit. PROVINCE The major region political subdivision of the...determine the extent of mineralization. Prospect A prospect is an occurrence which has undergone investigation...value has not been established. Dev. Prospect A developed prospect is an occurrence which has undergone...Deposit A sub-economic deposit is a developed prospect that has been evaluated as not economically recoverable...Economic Deposit An economic deposit is a developed prospect that is identified as an economically recoverable |
 | Kelson, C. R., Crowe, D. E., Stein, H. J. (2008) Geochemical and Geochronological Constraints on Mineralization within the Hilltop, Lewis, and Bullion Mining Districts, Battle Mountain-Eureka Trend, Nevada. Economic Geology, 103 (7) 1483-1506 doi:10.2113/gsecongeo.103.7.1483 | Journal (article/letter/editorial) |
| Zn from all three districts exploited ⱕ3-m-wide quartz veins hosted mainly within upper plate Ordovician-Devonian...molybdenite mineralization. Age differences between quartz vein-hosted gold ± base metal mineralization (e...and Th (115°–425°C) data from ore-bearing vein quartz, in conjunction with measured δ18OVSMOW data (–0...temporal and genetic link between Eocene magmatism, quartz vein-hosted precious and base metal mineralization...(Roberts, 1966) is located within the Great Basin province. Although metals are produced from a wide variety |
 | | Report (volume) |
| the easternmost ranges of the Peninsular Ranges province. The steep, rugged northeast and east faces of...the central part of the study area. The Waters prospect (fig. 2, No. 2; table 1) encompasses large quantities...may have been produced from the Hanks Lost Mine prospect located 1,000 ft southwest of the study area (fig...area in a large screen that includes the Waters prospect (fig. 2, No. 2; table 1). The northwest-trending...and production Sample and resource data Gypsum prospect A bed of massive gypsum crops out in three significant |
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| . . . . . . . . . . . . . . . . . 33 3.2 UNNAMED PROSPECT (Site No. JV-91) . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . 48 3.3 UNNAMED PROSPECTS (Site Nos. JV-89 and JV-90) . . . . ... . . . . . . . . . . . . . . . . . 54 3.4 UNNAMED PROSPECT (Site No. JV-93) . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . 57 3.5 UNNAMED PROSPECT (Site No. JV-94) . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 3.6 UNNAMED PROSPECT (Site No. JV-95) . . . . . . . . . . . . |
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| Several talc (including the Horse Thief talc prospect) and iron-skarn prospects occur in large megabreccia...iron-skarn deposits, respectively. The Horse Thief talc prospect contains 200,000 tons of identified resources...megabreccia clasts in the Kingston Peak Formation, and in quartz veins in the granite porphyry. Polymetallic deposits...and silver resources in polymetallic deposits. Quartz veins in the granite porphyry include pyrite ±...brecciated fault zones in the granite porphyry. A few quartz veins have vugs and vesicles filled with amethyst |
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| Drainage Area (list J) M2( LL.._J Physiographic Province (list K) M3< L........J ) _____________________________)...COBALTITE, GERSOORFITF, SIDERITE O!'POSI T TYPES: VF'I~ QUARTZ IN FRACTURE znNF' • • • • • UTM EASTING 704190...DIKES, ARSENOPYRITF MOST CO~MON ORE IN VEIN QUARTZ. VEIN QUARTZ ABOUT ONE FOuT THICK. PAOOUCTION CORE AND...TwO SAMPLES; NOTE~ AASENOPYFITE CQMMON IN VEIN QUARTZ. ASSAY SAMPLE NO l9l AND 193 SHOW HIGH VALUES OF...u~E ~JNT~OL OR I OCUS ••••• CONTACT ZONE OF QUARTZ NOR(TF A~O G'llcl~S G~'1LnGICAL UESC~IPTIVE |
 | Theodore, Ted G., Blair, Will N., Nash, J. Thomas, McKee, E.H., Antweiler, J.C., Campbell, W.L. (1987) Geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona, with a section on K-Ar chronology of mineralization and igneous activity, and a section on implications of the compositions of lode and placer gold. Professional Paper 1361. US Geological Survey doi:10.3133/pp1361 | Report (issue) |
| molded partly against rounded fragment of clear vein quartz. Collected from King Tut placer workings, Lost...disseminated gold --------------Fluid inclusions in a quartz-fluorite-white mica vein that cuts the Late Cretaceous...two-mica monzogranite - - - Comparison of fluids in a quartz-fluorite-white mica vein and in gold-bearing episyenitic...molded partly against rounded fragment of clear vein quartz. PLATE 1. Localities for commodities and compositional...---------------------6. Photograph showing coarse-grained quartz-feldspar leucogranite crosscutting schistosity |
 | | Report (issue) |
| these metasedimentary rocks appears to have been a quartz-rich graywacke that contained abundant organic...Blue Ledge mine (fig. 2). They consist mainly of quartz and muscovite with minor amounts of barite and...because all of the more common rock-forming minerals (quartz and feldspar) that tend to dilute the anomalies...silver may have been produced from a vein quartz and quartz mica schist (Brooks, 1968, p. 255) at the...mine (Peterson and Ramp, 1978, p. 150). A mercury prospect (fig. 3, No. 17) is northeast of the study area |
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| ........................................ Cu-Au Quartz-Tourmaline Veins ................................Veins ........................................ Quartz-Alunite Epithermal Gold-Silver Veins ............Mo-W porphyry-skarn systems with assock*ed Cu-Au quartz-tourmaline veins (for example, Risue Canyon and...deposit, Gardnerville mining district), and Au-Cu quartz-tourmaline veins (Peavine mining district). Tertiary...rocks include epithermal adularia-sericite and quartz-alunite veins (Ramsey and Peavine mining districts |
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| 72 Elevator Prospect. .........,.,.,., .........,.,.,., .........,.,..84 Hattie Prospect. .........,...Area Unnamed Unnamed Unnamed Unnamed Unnamed Unnamed Prospect Prospect Prospect Prospect Prospect Prospect......... ...150 8fh Street Area B0287, Stanley Prospect. ..........,.,.... ................... ......................................164 B0486, Unnamed Prospect B0486. .........,,,.. .........,.,.,.. West...in foreground, numerous prospect pits in center........53 Figure 342-8: Prospect pit, possible caved adit |
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| ..................................... Rudkins prospect - 00006............................................................................. Pinafore prospect - 00008............................................ Pentland prospect - 00021.......................................... Upshot prospect - 00022............................................. Carbine prospect - 00023...................................................................... Bell Ranch gold prospect - 00025................................... Binghampton |
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| grain of sapphirine in a sample from the Amethyst prospect ---------------------------------------------...twinning in sapphirine in a sample from the Amethyst prospect ---------------------------------------------...Amethyst prospect -------------5. Sapphirine and orthopyroxene in a sample from the unnamed prospect ----...ezincian spinel in a sample from the Amethyst prospect--------7. An intergrowth of sapphirine and zincian...zincian spinel in a sample from the Amethyst prospect---------------------------------------------------- |
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| presumably staked for gold, on cliff of pyritiferous quartz latite tuff. Only work was a little blasting on...loc. 18 Iliamna (10.15, 1.95) 59°06'N, 154°53'W Quartz vein cutting Tertiary locally propylitized interbedded...Prospective ore said to be rich, but in small bodies. Prospect located in 1905, but has been inactive for many...Iliamna (21.05, 11.7) 59°39'N, 153°38'W Jurassic quartz monzonite intruded Triassic limestone and greenstone...4 Iliamna (17.65, 12.65) 59°43'N, 154°00'W A quartz vein 10 ft wide in Lower Jurassic schistose greenstone |
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| . . . 7 SITE ID-0458-00001: CARROTHERS/HINES PROSPECT (CH-1099) . . . . . . . . . . . 10 SITE ID-0458-00002:... . . . . . . . . . 10 SITE ID-0458-00003: UNNAMED PROSPECT ( FILE R 071615a) . . . . . . . . . . . .... . . 11 SITE ID-0458-00004: UNNAMED PROSPECT: (FILE R 071521a) . . . . . . . . . . . . . . 11 SITE ID-0458-00005:.... . . . . . 14 ID-0458-00001 CARROTHERS/HINES PROSPECT (CH-1099) . . . . . . . . . . . 15 ID-0458-00002...ID-0458-00003 UNNAMED PROSPECT ( FILE R 071615a) . . . . . . . . . . . . . 42 ID-0458-00004 UNNAMED PROSPECT: (FILE |
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| marble, and metasedimentary rocks intruded by quartz monzonite, gabbro, and tonalite of the batholith...cement and for construction materials. Quartz veins that cut quartz monzonite, gneiss, and schist in the...occurrences in and adjacent to the study area. One prospect within the study area was surveyed by compass...the Santa Rosa Mountains, but only one tungsten prospect was found within the study area. Federal oil and...Miller Ranch tungsten prospect (table 1, No. 4) in Martinez Canyon was the only prospect found within the |
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| . . . . . . . . . . . . . . . 38 3.47 MARTIN PROSPECT (Site No. JV-21). . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . 42 3.48 UNNAMED PROSPECT (Site No. JV-16).. . . . . . . . . . . . ... . . . . . . . . . . . . . . . . 108 3.60 UNNAMED PROSPECT (Site No. B7229901). . . . . . . . . . . .... . . . . . . . . 34 Figure 3.45-3. White bull quartz on the waste dump of Adit 1 at the Treasure Vault.... . . . . . . 35 Figure 3.45-5. Waste dump and quartz stockpile at Adit 2 of the Treasure Vault Mine |
