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| 947-G COPPER DEPOSITS OF THE KOTSINA-KUSKULANA DISTRICT ALASKA BY RALPH E. VAN ALSTINE AND ROBERT F....showing the location of the KotsinaKuskulana .district. _______-__________--_-_--______--_- 124 21...1938. COPPER DEPOSITS OF THE KOTSINA-KUSKULANA DISTRICT, ALASKA By RALPH E. VAN ALSTINE AND ROBERT F...F. BLACK ABSTRACT The Kotsina-Kuskulana district of the Copper River region is between the Chitina River...copper ore from the district. LOCATION AND GENERAL GEOLOGY The Kotsina-Kuskulana district is between the |
 | | Journal (article/letter/editorial) |
| COOK Department of Geology Auburn University GALENA Downloaded by [University of Tennessee, Knoxville]...unusual specific gravity and perfect cleavage, galena was saved and widely traded by early man as a curiosity...to the term galena for certain lead-bearing compounds was made by Pliny in A.D. 77. Galena is best known...(144) is less common. Skeletal and reticulated galena crystals are characteristic of some deposits, and...oriented small crystals. Galena also occurs in coarse to fine granular masses. Galena is a simple lead sulfide |
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| sulphide zones._ _ ______________________ 172 Occurrence of the copper minerals_________________ 176 Copper-bearing...Arizona__________________________ 208 Note on the Bisbee district, Arizona, by F. L. Ransome_ 209 Globe and Miami...Mexico____________________ 22J Burro Mountain district, New Mexico_____________ 222 , Cananea, Mexico...Snowstorm lode, Coeur d'Alene district, Idaho__ _ 235 Encampment district, Wyoming_____________;___ 236...Queen of Bronze mine, Oregon_________ Boundary district, British Columbia : ___ 241 241 Vancouver, |
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| Cuprite b) Native Copper c) Vanadin" d) Sphalerite e) Galena f) Cerussite Rock-forming minerals, mafic (dark-coloured)...proportion of them are extremely rare, both in their occurrence and distribution. It is only the specialist who...the base (or basal pinacoid) of the crystal, and galena always splits along three planes at right angles...8-sided, Octahedron 12-sided, Dodecahedron Blende Galena Diamond Garnet TETRAGONAL 3 axes at right angles...specific gravity ("SG"), cleavage, identification, occurrence in Zambia (where possible), and uses, if any |
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| unusual development, as to represent a mineral occurrence worth recording. Among the major types of igneous...Oronto Group a.. 3: co w C: _J 0 0 Marquette Iron District, Baraga and Marquette Counties diabase dikes...chlorite group chromite chrysotile clinozoisite covellite cubanite dolomite gersdorffite hornblende ilmenite...and used by Native Americans millennia ago. The occurrence of monazite-(Ce) in the Precambrian Goodrich...clinozoisite copper corundum datolite diamond galena glauconite gold ilmenite magnesite magnetite monazite |
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| the copper minerals.......................... Occurrence of the copper minerals.........................the silver minerals.......................... Occurrence of the silver minerals.........................compounds...................................... 135 Occurrence of the lead minerals...........................compounds...................................... 140 Occurrence of the zinc minerals...........................iron minerals............................. 143 Occurrence of the iron minerals........................ |
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| Basin structure Structure in the San Francisco district Geology Sedimentary rocks Geologic periods represented...relations Morehouse (?) quartzite (Silurian?) of Star district Distribution General character Conditions of deposition...Quartz monzonite of the Rocky district Quartz monzonite of the Star district Comparison of analyses Dike...82 San Francisco district 82 Beaver Lake district 86 Rocky district 87 Star district 88 Comparison of...Molybden i t e 92 Argentite 92 Galena 92 Chalcocite 93 Sphalerite 93 Covellite 93 G reenock it e 93 Wurtzite |
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| .......................... . Situation of the district ...................................................................... General geology of the district .......................................................................................... . Occurrence and distribution ..............................40 41 41 4 CONTENTS. General goology of the district-Continued. Structure ........ ~ . . . . . . .... . . . . . . . . . . . . . . . Alteration of covellite to chalcocite . . . . . . . . . . . . . . . . |
 | | Book (edition) |
| trisocta- silver hedron trisocta- gold platinum galena hedron halite for tetragonal Jor rhombic- ...hexagonal dipyramid (first MINERALS graphite covellite and second order) molybdenite dihexagonal prism...halides (fluorite) and a large number of sulfides (galena, sphalerite, chalcopyrite, stibnite, pyrite, etc...objects or replacing fibers of wooden supports. Occurrence up to 3 cm (1 .1 The 8 finest crystals of...mineral, either in ciated with calcite or e Occurrence The finest dendritic and wirelike crystals come |
 | | Journal (article/letter/editorial) |
| New data for the lead isotopic composition of galena from ore deposits related to 1.8-1.4 Ga granitoids...deposits is necessary. Although many hundreds of galena-bearing sulphide deposits are known in the Fennoscandian...classification has distinguished between four modes of occurrence and is based on geological, mineralogical and...distributed in the Fennoscandian Shield, very few galena-bearing mineralizations have been reported within...Mansfeld, 1991). In these deposits, sphalerite, galena, chalcopyrite, pyrite, pyrrhotite and native bismuth |
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| ORE DEPOSITS OF THE BAYARD AREA, CENTRAL MINING DISTRICT, NEW MEXICO BY SAMUEL G. LASEY Prepared in cooperation...ORE DEPOSITS OF THE BAYARD AREA, CENTRAL MINING DISTRICT, NEW MEXICO By SAMUEL G. LASKY ABSTRACT This...in the southwestern part of the Central mining district, Grant County, N. Mex. Practically the entire...wide. This zone 2 BAYAED AREA, CENTRAL MINING DISTRICT, NEW MEXICO is part of a northeastward-trending...argentiferous mixtures of sphalerite, chalcopyrite, galena, and pyrite accompanied by quartz and calcite. |
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| ............................... Seven Troughs district.................................................Outlook for the district................................................. Rosebud district................................................... Red Butte district........................................................................ Chafey and the Sierra district.......................................... Kennedy.................. 65 65 65 65 65 65 65 65 66 Covellite......................................... .... |
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| GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO BY W. S. BURBANK WITH A SECTION ON...Geography _ ______________ ___-__-__ Situation of the district _ _ _________________ Topographic features. ....Previous geologic and topographic work in the district. ____ ___________._-__-______--__. Field work..._________________. Southern part of district._____-______--_ Future exploration in the district.________---__._ Mines...mine_________________________ Mines of the southern part of the district-_______ Eagle mine.--____-------___________--_--__ |
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| metals form compounds with sulfur (S). The sulphide galena (PbS), for example, contains lead. Oxides contain...90°. Possible Three axes of different MINERAL Galena belongs to the isometric (cubic) system. Even though...often exhibits other geometric faces. On this galena crystal (left), cubic faces are combined with ...flat layers (cleavage in one direction), while galena cleaves in three directions into cubes. The smoothness...how much is absorbed. Minerals such as gold and galena reflect Minerals that phosphoresce, or glow in |
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| Mesozoic Basins of the Eastern United States II. Occurrence Descriptions and Summary Tables by Gilpin R....MESOZOIC BASINS OF THE EASTERN UNITED STATES II. OCCURRENCE DESCRIPTIONS AND SUMMARY TABLES TABLE OF CONTENTS...Quadrangle, Latitude, Longitude .......... 7 Occurrence Type, Production ................... 7 Deposit...References Cited .......................... .13 VI. Occurrence Bibliography ...................... .14 VII...type* ......... Occurrences listed by type of occurrence and size . . Occurrences listed by metal association |
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| DIRECTOR THE COPPER DEPOSITS OF THE ENCAMPMENT DISTRICT W"YOMI;NG BY ARTHUR C. SPENCER WASHINGTON GOVERNMENT... _.... ___ . _. 42 42 42 43 44 44 45 47 49 Occurrence of gold . _. __ ... : . ...... __ .... __ .....deposits ...... __ ............... _. Types of occurrence ...... _..... _................................_..... _.. ___ . _. __ .... __ ...... ___ .. Occurrence of the ore ........... ___ .... _...... _................ _. _... _........ __ . _.. _. _.. Occurrence of the ore ......... _.......... _... _ . __ |
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| minerals have been added and the localities of occurrence have been updated and expanded. The special uranium...seldom present, with a resultant paucity of occurrence) tend to be in smaller crystals. Common minerals...granite as a rule, though its texture and its occurrence are similar. Like granite, diorite is a group...late low-temperature minerals. The manner of occurrence is noted in the paragraph Environment in each...detailed descriptions. Knowledge of the type of occurrence helps to eliminate minerals that might be confused |
 | Steeves, Nathan J., Hannington, Mark D., Gemmell, J. Bruce, Green, Darwin, McVeigh, Garfield (2016) The Glacier Creek Cu-Zn VMS Deposit, Southeast Alaska: An Addition to the Alexander Triassic Metallogenic Belt. Economic Geology, 111 (1) 151-178 doi:10.2113/econgeo.111.1.151 | Journal (article/letter/editorial) |
| bottom of the lenses in pyrrhotite-rich zones. Galena, tennantite-tetrahedrite, and arsenopyrite are...sp ± ccp with variable carbonate; located   (± galena, tetrahedrite,   (± muscovite, chlorite,   on...dominated by py-sp, with varying ccp   galena, arsenopyrite, covellite) Massive pyrite rich Pyrite, chalcopyrite...barite, carbonate, albite,   barite gangue   covellite)   Ba feldspar) Massive pyrrhotite rich Pyrrhotite...sphalerite with variable amounts of pyrite, minor galena, tennantite-tetrahedrite, arsenopyrite and chalcopyrite |
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| System of mineral classification 8 Origin and occurrence of minerals 8 Associated minerals 11 Properties...Lastly, data on the genesis, associated minerals, occurrence and application are included. The tabulated section...the minerals in this book as well. Origin and occurrence of minerals In order to gain some knowledge of...zone, sulphur compounds (eg pyrite, chalcopyrite, galena and sphalerite) c.:hange into oxygen salts (eg...to new sulphides (eg chalcosine, bornite and covellite). Products of chemical weathering which are deposited |
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| Tectosilicates 397 405 423 446 356 Contents 6. OCCURRENCE AND ASSOCIATION OF MINERALS Rocks and Rock-forming...in a garden has seen minerals in their natural occurrence. The rocks of the mountain, the sand on the beach...to 2 Introduction I materials of natural occurrence. Thus, cement, plaster, and glass are not steel...face-centered lattice. This structure is also found in galena PbS, MgO and many other AX compounds. thermal...as the only form on a few minerals. The other Occurrence of Isometric Forms of the Hexoctahedral Class |
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| metals form compounds with sulfur (S). The sulphide galena (PbS), for example, contains lead. Oxides contain... MINERAL MAKEUP t~.. -~ :,; t"'Jf ' . • ' Galena belongs to the isometric (cubic) system. Even though...it often exhibits other geometric faces. On this galena crystal (left), cubic faces are combined with octahedron...how much is absorbed. Minerals such as gold and galena reflect light much like a polished silver tray...formed by fluorite. PERFECT IN THREE DIRECTIONS (GALENA) GOOD INTWO DIRECTIONS (HALITE) PERFECT IN ONE |
 | | Report (volume) |
| CONTENTS V Detailed descriptions Continued. Verde district Continued. Page Jerome-Verde Development Co 88...________ 92 Prospecting operations in the Verde district _ 93 Black Hills district____________________-_____-97..._____ Logan mine ________ ________ ____ Prescott district ____________________ ______ Geolpgy__ _.._____...district____________________________ Hassayampa district._____________________________ Big Pine mine__...CONTENTS Detailed descriptions Continued. Hassayampa district Continued. Page Crook vein________________________________ |
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| districts.____-_--_-----_____-______---_ Bohemia district.._i_-_-__--_---_-_--_---___-______-_____---_--...areas and mining districts Continued. Bohemia district Continued. Mineral deposits._________________...areas and mining districts Continued. Bohemia district Continued. Mines and prospects Continued. Tall...___-_-___.-______-_-_____.__________._ Quartzville district..______-_----._______-_____-.-________-_-Location...and Betty or Smith and McLeary.__________________ Galena.--_-_.-_._________-_._....____________ Golden Fleece |
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| a general description of the association and occurrence of the minerals which etc., it contains is...general physical characters, together with their occurrence, associations, uses, etc., are included under...115 MINERALS ARRANGED ACCORDING TO ELEMENTS. OCCURRENCE AND ASSOCIATION OF MINERALS LISTS OF . Rocks...crystals of the same min- different limiting Galena, PbS, for example, usually crystallizes in the...The in- eral. a cube, but ternal structure of galena is constant, but both the cube and The Both |
 | | Book (edition) |
| Marble, Limestone 2 Gold, Silver, Copper, Sulphur, Galena, Sphalerite xill 16 17 Kiv ILLUSTRATIONS...Niccolite : 8 Millerite, Bismuthinite, Stibnite, Covellite, Pyrite (cube), Pyrite (pyritohedron) , : 9 Calcite.... 82 Michi- gan) ay, p.9z 5. Galena on dolomite (Joplin District, MissouriKansas-Oklahoma) p. 92...92 6. Sphalerite (Joplin District, MissouriKansas-Oklahoma) 18 ROCKS This rock is known as basalt....granite as a rule, though its texture and its occurrence are similar. Like granite, diorite is a group |
