 | | Report (issue) | | Gold in Minerals and the Composition of Native Gold Gold in Minerals and the Composition of Native...Native Gold By Robert S. Jones and Michael Fleischer GEOLOGICAL SURVEY Washington 1969 CIRCULAR 612...considerations ----------------------------------------Gold in minerals ------------------------------------------------------...------------- _ Composition and the fineness of gold ---------------------------- ___ References cited...Analyses of gold in minerals made since 1954 --------------------10 4. Variation in fineness of gold with depth |  | | Journal (article/letter/editorial) | | Characteristics of Supergene Gold of Karst Cavities of the Khokhoy Gold Ore Field (Aldan Shield, East... Abstract: Typomorphic features of supergene gold in karst cavities were studied in the recently discovered...discovered Au–Te–Sb–Tl deposit within the Khokhoy gold ore field of the Aldan-Stanovoy auriferous province...supergene gold, massive and porous, are recognized there. The first type is represented by gold crystals...impurity. The second type is represented by mustard gold of two types with different internal structure: |  | | Journal (issue) | | Western Tasmania, the Heazlewood district, and the Dundas district. The Dundas Ag-Zn-Pb mining field...10 km east of Zeehan, and contains a number of mines. Two of them are especially productive in terms...Pocket”, 10.1 cm high. Gobin specimen. Crystalline gold from Round Mtn, USA Read on page 7 R. Scott WERSCHKY...Tucson Gem and Mineral show, and seeing some new golds from a mine you have never heard of. They are leafy...leafy specimens with bright, shiny, yellow gold and hints of octahedral crystals on the edges. The specimens |  | | Journal (article/letter/editorial) | | com/locate/oregeorev Characteristics and genesis of Kanggur gold deposit in the eastern Tianshan mountains, NW China:...2002; accepted 11 March 2003 Abstract The Kanggur gold deposit lies in East Tianshan mountains, eastern...eastern section of Central Asia orogenic belt. The gold mineralization occurs on the northern margin of the...andesite, dacite, tuff and subvolcanic rocks. The gold ore bodies were distributed in transition zone from...EW-trending normal brittle – ductile shear zone. The gold ore bodies are composed of Au-bearing altered rocks |  | | Book | | (bottom), also known for obvious reasons as ‘fool's gold'. and there in the stone you may actually see fossils...deep underground, such as those in the Austrian Tyrol and in Cornwall. Again, locating these sources required...practical dug mines to get at them underground. geological skill as they Copper and gold were first used...great unconformities (see Reading the Copper and gold were both too soft to geology book, De Re Metallica...as nickel years and some brand new - and is and gold that combine readily with rarely more than 10km/6 |  | Zhou, Li, Mernagh, Terrence P., Lan, TingGuang, Tang, Yanwen, Wygralak, Andrew (2019) Intrusion related gold deposits in the Tanami and Kurundi-Kurinelli goldfields, Northern Territory, Australia: Constraints from LA-ICPMS analysis of fluid inclusions. Ore Geology Reviews, 115. 103189 doi:10.1016/j.oregeorev.2019.103189 | Journal (article/letter/editorial) | | Journal Pre-proofs Intrusion Related Gold Deposits in the Tanami and Kurundi-Kurinelli goldfields, Northern...T. Lan, Y. Tang, A. Wygralak, Intrusion Related Gold Deposits in the Tanami and Kurundi-Kurinelli goldfields...2019 Published by Elsevier B.V. Intrusion Related Gold Deposits in the Tanami and Kurundi-Kurinelli goldfields...University ORCID ID: 0000-0002-8555-0110 Abstract Gold deposits in the Tanami and Kurundi-Kurinelli goldfields...distinguish them from the typical vein-hosted, orogenic gold deposits that occur in other parts of Australia |  | Meng, Lin, Huang, Fei, Gao, Wenyuan, Wang, Daoheng, Zhu, Jianxi, Xing, Changming, Tan, Wei, Tang, Xu (2020) Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and compositions of sulfide assemblages. Ore Geology Reviews, 117. 103275 doi:10.1016/j.oregeorev.2019.103275 | Journal (article/letter/editorial) | | Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and...Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and... Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and...Ministry of Education on Safe Mining of Deep Metal Mines, and School of Resources and Civil Engineering,...100029, China Abstract The Laozuoshan gold deposit is a large gold deposit which experienced Variscan skarn |  | | Journal (article/letter/editorial) | | show that the host rocks range from about 90% sericite to about 97% dolomite (Fig. 3), indicating that...consist of very fine-grained (1--5b~) dolomite and sericite, together with varying quantities of fine-grained...fine-grained quartz and chalcedony. The alignment of sericite flakes in some of the less dolomitic rocks has...Creek Geosyncline succession, After Rum Jungle District Special Sheet, Bureau of Mineral Resources~ 1960...expressed as chalcedony, dolomite, coarser-grained sericite, galena, or sphalerite. The bedding is distorted |  | | Report (issue) | | knowledge of the authors. Likewise, U.S. Bureau of Mines maps depicting locations of mining claims were used...and serves to link the map and table. Name(s) of mines or prospects are derived from published sources...Claims may or may not be active. Probably some of the gold deposits that are listed as prospects have had at...Geological and Geophysical Surveys, or Bureau of Mines field investigations. Numerous, apparently insignificant...or prospects are known only from U.S. Bureau of Mines claim maps (1974, 1977); information on these deposits |  | | Journal (issue) | | 264 St. James Collections Colorado School o f Mines Golden, CO 80401 303-273-3823 Mon-Sat 9-4, Sun 1-4...Articles Famous mineral localities: the Kingsgate mines ........................................ 265 by...reserved. FAMOUS MINERAL LOCALITIES: the Kingsgate Mines NEW SOUTH WALES, AUSTRALIA Brian M. England Broken...workings scattered over a relatively small area, the mines were originally worked for bismuth in the late 1800s...known facts concerning the history of the Kingsgate mines, as well as providing an up to date descrip tion |  | | Journal (issue) | | ..........191 by W. E. Wilson The Port Radium district, Northwest Territories, Canada .................Famous mineral localities: the Ouro Preto topaz mines ..................................................long and hard at the portal or shaft of abandoned mines and wondered if far better material might not be...least a short distance into aban doned mines. Abandoned mines certainly aren’t hard to find. Colorado...000—most of them underground metal mines. The U.S. Bureau of Mines estimates that there are well over |  | | Journal (issue) | | mineral localities: The Bastnas Mines, Riddarhyttan Ore Field, Bergslagen District, Vastmanland, Sweden ......BASTDAS ffiIDES RIDDARHYTTAD ORE FIELD, BERGSLAGED DISTRICT, VASTffiADLADD, SillEDED Lennart Ohman Hi:igviltsvagen...south-central Sweden, where tens of thousands of different mines have been worked for nearly a thousand years. Iron...fields, with approximately 300 large and small mines. Iron ore mining began in the mid-14th century,...certainty from the mid-14th century, making this district one of the oldest in Sweden. Though the mine was |  | | Journal (issue) | | Famous mineral localities: The Cripple Creek Mining District, Colorado . . . . . . . . . . . . . . . . . ....diamond crystals (over 2,200 specimens!), crystallized gold (over 800), pegmatite phosphates (especially from...the Palermo #1 mine in New Hampshire and various mines in the Black Hills of South Dakota) and secondary...March–April, 2005 Miners from throughout the Tri-State District brought him specimens which he bought for the...It was a great sadness to him when the Tri-State mines finally closed down. Elsing favored crystal collecting |  | | Report (issue) | | the phenocryst is occupied by an aggregate of sericite (pale grey) and quartz. The dark rim and zones...pseudomorphed phenocryst are chlorite replacing sericite. Crossed nicols. Figure 9 on page 310 should...of the Corbet Massive Sulphide Deposit, Noranda District, Quebec, Canada My-eknuckeycand Jo) Watkitisieasenae...River, N.W.T. 127 Geology of the Agnico-Eagle Gold Deposit, Quebec iawos saoun seiewaction M.J. Casselman...Barnett.... 13; Geology of the Opemiska Copper-Gold Deposits at Chapais, Quebec 14. The Discovery |  | | Report (issue) | | INTRODUCTION. reports are those on the Mercur district, by J. E. Spurr and S. F. Emmons; the Bingham...Bingham The senior author, J3. S. Butler, began district, by J. M. Boutwell, Arthur Keith, and field work on...deposits of Utah in the S. F. Emmons; the Park City district, by J. M. FIELD .WORK AND AUTHORSHIP. summer...author, G. F. Loughlin, began work in the Tintic district in 1911 in collaboration with Waldemar Lindgren...the Tin tic and Thomas ranges, of the Leamington district, and of districts in theW asatch Range. Several |  | | Report (issue) | | Al"'EU. 74 GEOLOGY AND ORE DEPOSITS OF THE BUTTE DISTRICT, MONTANA BY \¥ALTER I-IAllVEY vVEED WASHINGTON..... ~ ....................... ~ . . . . Epoch of gold mining .......................................................................... Future of the district .................................. ·............CnAP'rER IlL-Descriptive geology of the Butte district ........................ , . . . . . . . . . .... . . . . . . . . . Quartz monzonite of Butte district.............................................. |  | | Book | | minerals. From precious native elements such as silver, gold and copper to complex silicates such as vesuvianite...pride of any geological collection. From the green, gold and blue iridescent sheen of labradorite to the...(bottom), also known for obvious reasons as 'fool's gold'. stone lying there. To start with, they probably...of an ancient treasure, lapis lazuli. Copper and gold were first used at least 10,000 years ago. They...times. colour makes them easy to see. Copper and gold were both too soft to make tools from, but the discovery |  | | Report (issue) | | are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska...Arsenopyrite, galena, gold, pyrite Gangue minerals: Limonite, quartz, sericite Geologic description:...arsenopyrite with trace amounts of silver and free gold. Gold is preferentially in smaller quartz veins, none...pyrrhotite-rich material in place carried 0.96 oz/ton gold. (Maloney and Thomas, 1966, Table 5; C.C. Hawley...grade samples were taken by the U.S. Bureau of Mines in 1959 and by the Alaska Division of Geological |  | Giuliani, G., Olivo, G.R., Marini, O.J., Michel, D. (1993) The Santa Rita gold deposit in the Proterozoic Paranoá Group, Goiás, Brazil: An example of fluid mixing during ore deposition. Ore Geology Reviews, 8 (6) 503-523 doi:10.1016/0169-1368(93)90042-w | Journal (article/letter/editorial) | | Printed in The Netherlands 503 The Santa Rita gold deposit in the Proterozoic Parano i Group, Goi ts...accepted June 26, 1993) ABSTRACT The Santa Rita gold deposit (Central Goi~is, Brazil) is hosted by Middle...part of the Parano~i lithostratigraphic column. Gold was probably initially transported as an AuC12-complex...State of Goi~is in Central Brazil hosts several gold mining districts which are locate*Present address:...structural environments. Important and well-known Goi~is gold deposits belong to the Crix~ls mineral province |  | | Journal (issue) | | DeMouthe Famous mineral localities: The Magdalena district, Kelly, New Mexico .............................Hammond Famous mineral localities: The Hansonberg district, Bingham, New Mexico .............................57 by R. S. DeMark The New Mexico Bureau of Mines Mineral Museum ...................................covers not just the Kelly mine but the Mag dalena district as a whole. This is not to say, of course, that...contributed two articles, one on the Red Cloud mines (11, 69-72) (not to be confused with Arizona’s more |  | | Journal (article/letter/editorial) | | information: http://www.tandfonline.com/loi/tigr20 Gold mineralization in relation to tectonics and magmatism...magmatism, as in the northwestern margin of Birrim gold belt, West Africa B.I. Blagonadezhdin a a Order...To cite this article: B.I. Blagonadezhdin (1975) Gold mineralization in relation to tectonics and magmatism...magmatism, as in the northwestern margin of Birrim gold belt, West Africa, International Geology Review...http://www.tandfonline.com/ page/terms-and-conditions Gold mineralization in relation to tectonics and magmatism |  | | Book | | GOLD Top: The original Turin Papyrus of the Egyptian gold mine (circa 1320 B.C.), the oldest geological...Papyrus of the Egyptian gold mine (after Ball, 1942; see chapter 3). GOLD History and Genesis of Deposits...deposits. Includes bibliographies and index. 1. Gold ores. 2. Gold. I. Title. TN420.B63 1987 553.4'1 86-15675...GENERAL GEOCHEMISTRY OF GOLD AND TYPES OF AURIFEROUS DEPOSITS General Geochemistry of Gold / 11 Auriferous Deposits...CHAPTER 2: GOLD DURING THE PRE·CLASSICAL (PRIMITIVE) PERIOD (5000 o.c.-600 o.c.) . 23 Gold Deposits in |  | | Report (issue) | | archive.org/details/minesandmineral02clar MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIFORNIA...Division of Mines and Geology and PHILIP A. LYDON, Mining Geologist California Division of Mines and Geology...Geology County Report 2 CALIFORNIA DIVISION OF MINES AND GEOLOGY FERRY BUILDING, SAN FRANCISCO, 1962...CONSERVATION DeWitt Nelson, Director DIVISION OF MINES AND GEOLOGY Ian Campbell, State Geologist COUNTY...1 units Geologic history 13 __ _ ____ 1 MINES AND MINERAL RESOURCES 17 Antimony 20 ___ _ |  | Reddy, K. Mahender, Mishra, Niharika, Simi, T. S., Rath, Sonali, Paul, Arijit, Sari, S. (2023) Special Publication Vol. 1-I (77), A Manual of the Geology of India : Precambrian Part I, Southern part of the peninsula (5th ed.) Geological Survey of India | Report (edition) | | greenstone belts host copper-zinc, ironmanganese and gold mineralization, high- grade Archaean terrain, which...in Gujarat occurred on 26th January, 2001 at 08.46 AM IST. The epicenter was about 9 km SSW of the village...BachauTaluq about 20 Km N of Bhuj the quarters of Kutch district of Gujarat India. The intensity of the quake measured...Earthquake: The Lathur earthquake struck India at 03.56 AM local time on 30th September, 1993. The main area...Hutti-Maski schist belt, South India: Implications to gold metallogeny in the Eastern Dharwar craton; Jou. |  | | Book | | Junner published Gold Coast Geological Survey Bulletin No.11 - "The geology of the Gold Coast and Western...what are known as the traditional minerals i.e. gold, manganese, diamond and bauxite. The minerals which...(1951 (1962 - 1930) 1946) 1951) 1962) 1973) IX I am hopeful that this book earch and original scientific...02 new cedis also equal to 0,870887 grams of fine gold or 98 U.S. cents. On 27th December, 1971, the cedi...S. cents or equivalent to 0,450182 grams of fine gold. With effect from 5th February, 1972 the cedi was |
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