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| Province, New Zealand W. R. H. RaMsaY Armidale, N. S. W., Australia H. W. KOB~ Auckland, N e w Zealand The...Province, which constitutes N e w Zealand's major region of noble metal production (Fig. 1). The province...;1ThamesPeninsula /LTe Aroha AUCKLANJ i Central Volcanic ~ Region NORTH ISLAND SOUTH ISLAND E Vq Fig. 1. Location...general geological map, Great Barrier Island, New Zealand TRUM'S conclusions, while more recently THOMI...the island on N. Z. Geological Survey Map of New Zealand, Sheet 2B, 1:250'000. He correlates the Andesitic |
 | Criss, R. E., Champion, D. E., McIntyre, D. H. (1985) Oxygen isotope, aeromagnetic, and gravity anomalies associated with hydrothermally altered zones in the Yankee Fork mining district, Custer County, Idaho. Economic Geology, 80 (5) 1277-1296 doi:10.2113/gsecongeo.80.5.1277 | Journal (article/letter/editorial) |
| Hydrothermally Altered Zones in the Yankee Fork Mining District, Custer County, Idaho R. E. CR•SS, U.S. GeologicalSurvey...vein and disseminateddepositsin the YankeeFork district are hosted in alteredvolcanicrockshavinglow 5180values...alsoassociatedwith the altered zonesin the Yankee Fork district. The intensitiesof these geophysicalfeaturesare...GeologicSetting The study area encompasses the Yankee Fork district,a miningregionin the SalmonRiver Mountains of...Thispaperdemonstrates thatthe Au-Agorebodies in the YankeeFork district,Idaho, were formedby a process essentiallyidentical |
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| high-grade Au-Ag-Te sample from deep in the Cresson Mine, Cripple Creek, Colorado, analyzed by Unger (2008)...telluride ore in the Cresson diatreme (lamprophyre) breccia, 2200 level in Cresson deposit. (B) Photomicrograph...subduction settings and moved into the magma source region by hydrothermal fluids derived from the slab. This...subduction depends on the tectonic history of the region affected. The important factor in the distillation...epithermal ores occur on the North Island of New Zealand in close proximity to that subduction zone (Christie |
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| SunbeamandGrouseCreek Gold-SilverDeposits,Yankee Fork Mining District, EoceneChallisVolcanicField, Idaho:A Volcanic...1776LincolnStreet,Denver,Colorado80203 Abstract The Sunbeam andGrouseCreekepithermalgold-silverdeposits lie...system. 0361-0128/94/1648/1964-19,4.00 1964 SUNBEAM ANDGROUSE CREEKAu-AgDEPOSITS, IDAHO Introduction...YankeeFork of the SalmonRiver at itsjunctionwith The Sunbeam and GrouseCreek depositsare loJordanCreek. More... ':'='• ß RHYOLITE • d'ALENE MISSOULA Kqm SUNBEAM Kqm SALMON RIVER LOWER STANLEY I BOISE 45' |
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| . . . . . . . . . . . . . . . . . . . . . . . Sunbeam Formation . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . 25 6. Sedimentary breccia of the Starlight Formation . . . . . . . 39 7....rhyolitic tuff intertongues with sedimentary mudflow breccia that is composed mostly of fragments of Ordovician...Sterling terrace probably is of Pinedale age. The region has had a complex structural history. Nearly all...thrusting and of basin-and-range faulting in this region is imperfectly known. The thrusting can only be |
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| Geology Idaho Challis Region Congresses. 2. Mines and mineral resources Idaho Challis Region Congresses. I....Douglas-Fir at the Red Mountain Stockwork, Yellow Pine District, Idaho, by J. A. Erdman, B. F. Leonard, and D...Wayne E. Hall. 183 (Q) Depositional Controls of Breccia-Fill and Skarn Tungsten Deposits in the Challis...of CUSMAP is the development and application of new concepts for the identification of mineral resource...possibly mineralized areas. CUSMAP is providing new information on present and potential mineral supplies |
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| deposits (Pleistocene)_____________________________ Sunbeam formation (Pleistocene)_____-__--_--__-_---_____-_American...Idaho. ________ 2. Index map of the American Falls region.... 3. Fence diagram southeast of American Falls...the Tertiary rocks of the area. The Starlight, a new formation used in part for rocks previously mapped...obsidian welded tuff that are widespread in the region. The Walcott is at most only 35 feet thick in this...American Falls, where, at about the same time, the Sunbeam formation, a thick fine-grained alluvium, was deposited |
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| the current-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices...Alaska Distribution Section, U.S. Geological Survey, New Federal Building Box 12 101 Twelfth Ave., Fairbanks...Distribution, Bldg. 810, Federal Center FAIRBANKS, Alaska-New Federal Bldg., 101 Twelfth Ave. Chapter B United...Molybdenum-copper deposits B30 Banner mine B30 Central part B31 Stanley district B31 History and production B31...Gold-bearing resources B31 Custer graben B31 Yankee Fork district B32 History and production B32 Character of the |
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| . . . . . . . . . . . . . . . . . . . . . . . Sunbeam Formation . . . . . . . . . . . . . . . . . . ...rhyolitic Tertiary tuffs of the American Falls region ................. . 6. Average range of phenocryst...quadrangle...................... 7. Begins above fault breccia at southwest tip of ridge above road into Buck...rocks is one of the most nearly complete in this region. The Cambrian rocks, about 11,000 feet thick, in...Gibson Jack Formation, and the Elkhead Limestone (new)-are applied to the rocks of the lower part of the |
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| fluorite deposit . .. 12 5. Photograph of jasperoid breccia pipe, Valley View claim of the Crystal group. ...deposits consist of irregular replacement bodies and breccia fillings in limestone of Paleozoic age and of veins...most of the Quinn Canyon Range, aimed at locating new deposits. 01 02 CONTRIBUTIONS TO ECONOMIC GEOLOGY...OF THE QTJINN CANYON RANGE C5 volcanic thrust breccia. Other explanations for extensive jasperoid blankets...and HiGrade groups of claims may show that the breccia is related to normal faults and the jasperoid to |
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| Geology Idaho Challis Region. 2. Mines and mineral resources Idaho Challis Region. I. Fisher, Frederick......... Carbonate rocks in the Bayhorse mining district.................................................Hobbs.................................... Bayhorse district subterrane.......................................................................... Golden Sunbeam mine area.......................................................... 157 Stratabound, stratiform, breccia-controlled fluorspar deposits in carbonate rocks |
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| pyrite and fine-grained quartz. At the S u n b e a m Mine, near the center o f the graben, vein and disseminated...in localizing ore at the Sunbeam Mine. Pipe-like masses o f silicified breccia, interpreted to be h y d...d r o t h e r m a l - e x p l o s i o n breccia, were formed along the northeasttrending fractures; the...Deposits o f the T h u n d e r Mountain Mining District, Valley County, Idaho OPAL A D A M S Freeport...Nevada, U.S.A. The T h u n d e r Mountain mining district is located in Valley County, central Idaho. Epithermal |
 | Vishiti, Akumbom, Petersen, Sven, Devey, Colin, Suh, Cheo Emmanuel (2013) Arsenian pyrite-bearing altered volcanics dredged SE of Cheshire Seamount, western Woodlark Basin, Papua New Guinea. Neues Jahrbuch f??r Mineralogie - Abhandlungen: Journal of Mineralogy and Geoche, 190 (3) 327-340 doi:10.1127/0077-7757/2013/0241 | Journal (article/letter/editorial) |
| Cheshire Seamount, western Woodlark Basin, Papua New Guinea Akumbom Vishiti, Sven Petersen, Colin Devey...faults may fertilize mineralization. The sulfidic breccia is essentially monomictic and matrix-supported...dacitic clasts. Mineralogical investigation of the breccia reveals silicification and sulfidation as the main...Quartz occurs in fragments and also constitutes the breccia matrix attesting to silicification as a significant...al. Fig. 1. Map of Woodlark Basin east of Papua New Guinea showing main tectonic features (modified from |
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| Gressman tom.gressman@minrec.org The Tintic District: Juab and Utah Counties, Utah...................COVER: CLINOCLASE, 3.9 cm, from the Mammoth mine, Tintic District, Utah. Rock Currier collection; Jeff Scovil...holds a sample of a pascoite group mineral at a mine in Grand County, Utah. Died, Alex Earl, 26 Jayson...field trips with his new friends all over the American West. A trip to the Blue Bell mine near Baker, California...Phurcalite with brochantite, 2-mm view, from the Posey mine, San Juan County, Utah. Alex Earl collection and |
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| COVER: High grade gold specimen from the San Antonio Mine, Bissett, Manitoba. It measures 24x20x5 cm and contains...Intrusive Complex 13 Figure 9 Geology of the Sunbeam breccia pipe 15 Figure 10 a) Stratigraphic setting...the San Antonio Mine area 21 Figure 12 Geological cross section of the San Antonio Mine area 21 Figure...Figure 13 Composite level plan of the San Antonio Mine showing '16 type' shear veins and '38 type' stockwork...7th level, San Antonio Mine 22 Figure 15 Geology of the Central Manitoba Mine area 27 Figure 16 Geology |
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| .... 5 : Cross-section of a typical underground mine ...... ... ... . .. . . ....... ... ... ..........and Plant, Inco Metals Company. Pipe 2 Underground Mine Headframe in Background . 6 12 13 14 15 34 49 50...splitting the Phanerozoic into the southwest prairie region (197 600 sq . km) and the Hudson Bay Lowlands (67...(67 600 sq. km). To date , the Precambrian region has been the source of the Province 's metallic minerals...minerals, whereas the Phanerozoic southwest prairie region has been the main source of industrial minerals |
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| replacements of base and precious metals (M) 62 Fluorspar breccia manto deposits (N) 64 Sediment-hosted, jasperoid-associated...within the Forest 10 5. Map showing location of type mine localities for mineral deposit types and boundaries...base and precious metals (M) 63 26. Fluorspar breccia manto deposits (N) 65 27. Sediment -hosted, jasperoid-associated...Mineral-materials transactions 1983-1986 7 Type mine localities for mineral deposit types 8 Description...Geochemical signatures of mineral deposit types at type mine localities 18 Size classification of deposit types |
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| ................................. 3 Rocky Bar District—43 ............................................................................... 8 Black Pine Mine—12 .................................................................................... 8 Hecla District—41 ......................................................................... 9 Elkhorn Mine—17 ........................................................volcanics and sediments, in both states. Much of the region is underlain by the late Precambrian Belt sedimentary |
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| Occurrences east of Sudbury Falcon Mine Wanup quarry Elizabeth Mine Wahnapitei occurrences MacDonald occurrence...quarry Vermilion River placer deposits Moose Mountain Mine Nickel-copper mines west of Sudbury High Falls Road...occurrence McMillan Mine Wallace Mine Sheguiandah quarry Shakespeare Mine Massey Mine Hermina Mine Elliot Lake...Bi-Ore Mine Pater Mine Pronto Mine Jasper conglomerate occurrences, Highway 546 Glagoma Mine Cheney Mine...Mine Gould Mine Havilah Mine Rock Lake Mine Bruce Mines copper mines Stobie Mine Jasper conglomerate |
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| (Dumbarton mine) Bottom left - Chalcopyrite ore with graphitic gangue material (Mandy mine) Bottom right...minor pyrite and white plagioclase (Chisel Lake Mine) 2 Foreword This publication is the third in...(Anderson Lake Mine) ..... 19 10. Botryoidal pyrite with vein quartz (Dumbarton mine) ................pyrrhotite-chalcopyrite groundmass (Osborne Lake Mine) 19 12. Radiating prisms of marcasite (Museum)...chalcopyrite in pyrrhotitic groundmass (Stall Lake Mine) .............................................. |
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| GEOLOGY AND ORE DEPOSITS · OF THE TINTIC MINING DISTRICT, UTAH BY WALDEMAR LINDGREN AND G. F. LOUGHLIN...History of mining 'and· metallurgy in the Tintic district, by V. C.l!eikes ............... . Production...water: .. ~.~~ ............... . Drainage of the district ....-... ·......... . Mineralization ...........Channel of the Gemini Chief mine ............................. . 205 mine·---------------------------------... ·... ·._. ___ . __ _ 182 . Eagle and Blue Bell mine .............. . 207 . Principal features of deposits |
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| Introduction.................. Location and accessibility Mine workings .......... Geology ......................northwest from Sunbeam, Colo. The roads to the claims are generally open throughout the year. Mine workings...dips 13° S., and is marked in the adit by a fault breccia zone as much as 10-feet thick which contains quartzite...the surface projection of this fault breccia zone. This breccia zone crops out near the center of the...bulldozer trench just east of pit 1 and in the breccia zone in the adit. The size and shape of the uranium |
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| AL. 120° 130° 140° 150° 10° 10° KIMBERLEY REGION GEORGINA 20° T6 BASIN AS1 Arunta Province O1...Y3, Shell Yowalga 3. 150° 10° 10° KIMBERLEY REGION R GEORGINA 20° AMADEUS BASIN BS T NGALIA BASIN...Tarcunyah Group Lower Buldya Group Ruby Plains Group Sunbeam Group BS P BG Bitter Springs Formation Plenty... Lower Buldya Group; R, Ruby Plains Group; S, Sunbeam Group; BS, Bitter Springs Formation; P, Plenty...120° 130° 140° 115 150° 10° 10° KIMBERLEY REGION GEORGINA 20° NGALIA BASIN AMADEUS BASIN L1 |
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| rarely, zirconolite, occur in skarn in the Ertsberg District of Irian Jaya, Indonesia. Unlike in Texas, related...in Trans-Pecos Texas, U.S.A., and the Ertsberg District, Irian Jaya, Indonesia, and from the literature...ALTERATION ., \ io,,o ,o,o 103° I 104 ° \ NEW MEXICO TEXAS SIERRAb/~'~'//b BLANCA 00/0/% ~ EXPLANATION...Flu-rhy = fluoritized rhyolite; Rhy bx = rhyolite breccia; QMP w/stck = quartz monzonite porphyry with stockwork...are associated with rhyolite H8141, and rhyolite breccia MGD-786 with rhyolite MGD-788. In evaluating enrichment |
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| Ege Headframe of Centennial Eureka mine, Tintic mining district. ISBN 1-55791-726-4 MISCELLANEOUS.... . . . . . . . . . . . . .1 What is a mining district? . . . . . . . . . . . . . . . . . . . . . . ...provides general information on what a mining district is, how many mining districts are in Utah, types...issues. The second part includes individual mining-district discussions containing information on location...resources of the mining districts. What is a mining district? districts in this booklet were selected because |
