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Plagioclase from
Kensington mine, Berners Bay Mining District, Juneau, Alaska, USA


Locality type:Mine
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Kensington mine, Berners Bay Mining District, Juneau, Alaska, USA
Data Identifiers
Mindat Occurrence Record ID:567743
Long-form Identifier:1:3:567743:6
GUID (UUID V4):0f211e14-c23d-4d46-8e6f-9eb143ee186f
References
Reference Search (possible matching items)
Report (volume)
SMITH, DIEECTOB GEOLOGY OF THE BERBERS BAY REGION ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT PRINTING........................................... 14 Berners formation ......................... : ...........38 Ivanhoe mine.......................................................... 38 Horrible mine..............39 Bear mine. ............................................................ 39 Kensington mine........... 40 Eureka mine. .............................................. ^.......... 42 Comet mine...........
Report (issue)
1)+%#. 5748';  ,WPGCW #NCUMC Alaska Resource Data File Juneau quadrangle Descriptions of the mineral...throughout Alaska. o o o o o o o o Distribution of mineral occurrences in the Juneau 1:250,000-scale...000-scale quadrangle, Alaska This and related reports are accessible through the USGS World Wide Web site...authored by: John C. Barnett and Lance D. Miller Juneau, AK This report is preliminary and has not been...the U.S. Government. OPEN-FILE REPORT 03-456 Alaska Resource Data File JU001 Site name(s): Unnamed
Journal (article/letter/editorial)
Departmentof Geologyand Geophysics, Universityof Alaska,Fairbanks,Alaska99775-0760 WILLIAM J. PICKTHORN...aswell asof A•80 for quartz-feldspar andquartz-plagioclase, providelittle evidenceof deep circulationof...locatedapproximately125 km inboardof the Gulf of Alaska and about 20 km west of the Coast batholith. Placergold...0361-0128/91/1171/66-1553.00 66 and ore petrographyat the Alaska-Juneau mine, the largestproduceralongthe goldbelt, were...y investigationsindicate that the ore fluids JUNEAU AuBELT:O, H, & SSTUDIES were low-salinity H20-CO2-CH4-N2-H2S
Journal (article/letter/editorial)
Formationat the KensingtonandJualinDeposits,BernersBay District, SoutheastAlaska LANCE D. MILLER,* Departmentof...RICHARD A. KIRKHAM EchoBayAlaska,3100 ChannelDrive,Juneau,Alaska99801 Abstract The BernersBaydistrictat...Presentaddress: EchoBayAlaska,3100 ChannelDrive,Juneau, Alaska99801. 0361-0128/95/1677/343-2654.00 343...which to studythe evolution of a mesothermal vein district. The BernersBayminingdistrict(Fig. 1) islocatedat...mesothermalquartz veinsin the Juneaugold belt. Mining activity in the BernersBay districtbeganin the
Report (issue)
systematic investigation of the mineral resources of Alaska by the Geological Survey has yielded a large amount...geologic features of the metalliferous deposits of Alaska, using the results obtained by the many geologists...purely scientific results which have been achieved. Alaska is rich in metallic wealth. Its lode' and placer...The rapid advance of the mining 1 Brooks, A. H., The coal resources of Alaska: Twenty-second Ann. Kept... The Alaska coal fields: Bull. U. S. Geol. Survey No. 314,1907, pp.40-46 Brooks, A. H., Alaska coal and
Report (volume)
SMITH, DIRECTOR BULLETIN 504 THE SITKA MINING DISTRICT ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT...intrusive rocks to mineralization______________ Kiag Bay _______________________________ Geography and hi...Gate mine____:_____________________ Hirst Cove Mining Co__ - _________________________'. _ Other prospects________... The gypsum deposit____________________________ Mine developments___________________________ Market ...Geologic reconnaissance map of the Sitka and Juneau mining districts __________________________________
Book
Geology of Southeast Alaska Rock and Ice in Motion Geology of Southeast Alaska Rock and Ice in Motion... Stowell University of Alaska Press Fairbanks © 2006 University of Alaska Press P.O. Box 756240 Fairbanks...Data Stowell, Harold Hilton. Geology of southeast Alaska : rock and ice in motion / Harold H. Stowell. p...paper) 1. Geology—Alaska, Southeast. 2. Glaciers—Alaska, Southeast. 3. Plate tectonics—Alaska, Southeast. 4...4. Climate—Alaska, Southeast. I. Title. QE84.S68S76 2006 557.982—dc22 2005027066 All illustrations by
Report (volume)
GOLD BELT, ALASKA BY ARTHUR C. SPENCER AND A RECONNAISSANCE OF ADMIRALTY ISLAND, ALASKA BY WASHINGTON...PRINTING 1906 OFFICE CONTENTS. THE JUNEAU GOLD BELT, ALASKA, BY ARTHUR C: SPENCER. Page Introduction............................... Topography of the Juneau belt....................................................................................... 6 Juneau map.............................................................. 7 Climate of southeastern Alaska......................................... -^ 7 Timber
Report (volume)
800 GEOLOGY AND MINERAL DEPOSITS OF SOUTHEASTERN ALASKA BY A. F. BUDDINGTON AND THEODORE CHAPIN !....Theodore Chapin.___ _________ Notes on history of mining development- _____-______----__--____ Geography...distribution________________________________ Ketchikan district.._______________________________________ Vicinity...Bay___________________________________________ Thomas Bay....____________________________ Port Houghton__ ...Holkham Bay and Tracy Arm__________________________.._ Page 45 49 49 52 57 59 60 66 68 68 Juneau district
Report (issue)
IN SOUTHEASTERN ALASKA.1 By GEORGE H. CANFIELD. INTRODUCTION. The streams of Alaska have been important...industrial growth. The success of placer mining in northern and central Alaska has depended primarily on the water...hydraulicking and dredging, and in southeastern Alaska water power has long been used by mines, canneries...water resources of Alaska. Investigations with special reference to placer mining have been made in Seward...parts of southeastern Alaska. In the summer of 1914 Leonard Lundgren, district engineer of the Forest
Report (volume)
Center, Box 25286 Denver, CO 80225 Residents of Alaska may order maps from U.S. Geological Survey, Map...Ave., Box 12 Fairbanks, AK 99701 • ANCHORAGE, Alaska-4230 University Dr., Rm. 101 • LAKEWOOD, Colorado-Federal...the U.S. Geological Survey offices: • FAIRBANKS, Alaska-New Federal Building, 101 Twelfth Ave. • ROLLA... Mississippi-Bldg. 3101. Geologic Studies in Alaska by the U.S. Geological Survey, 1992 CYNTHIA DUSEL-BACON.... . NORTHERN ALASKA Late Holocene Longitudinal and Parabolic Dunes in Northern Alaska: Preliminary Interpretations
Report (issue)
MINERAL INVESTIGATIONS IN SOUTHEASTERN ALASKA By A. F. BTJDDINGTON FIELD WORK Since 1921 the writer...southeastern Alaska. The field work in 1921 and 1922 was devoted chiefly to the Wrangell district. A part...believed, is of immediate practical value to the mining industry. For this reason it is here presented...understanding of the occurrence of ores in the district examined is by no means complete. Therefore, the...with the gold and silver deposits of the Hyder district and the copper and nickel ores of Chichagof and
Report (volume)
PROGRESS OF INVESTIGATIONS OF MINERAL RESOURCES OF ALASKA IN 1905 By ALFRED H. BROOKS AND OTHERS WASHINGTON...... Southeastern Alaska............................................... Yakutat Bay......................................................... Controller Bay..................................................................................... Southwestern Alaska............................................................................................ THE MINING INDUSTRY IN 1905, by Alfred H. Brooks.........
Report (issue)
LODE MINING IN SOUTHEASTERN ALASKA, 1907. By CHAKLES W. WEIGHT. INTRODUCTION. The mining industry in...in southeastern Alaska has not advanced materially during the last year, and the total metal production...factors have affected the mining interests not only of southeastern Alaska, but likewise of many of the...is given of the general geology of southeastern Alaska and the distribution of the ore deposits within...districts and of copper to the south in the Ketchikan district is also noteworthy. Detailed statements of the
Journal (article/letter/editorial)
the Klipwal Shear Zone (KSZ) at the Klipwal Gold Mine is confined to laminated quartz–carbonate lodes...Johnson No. 326, Canterbury Ct., Alamo, CA 94507, USA Present Address: S. S. Chinnasamy Department of Earth...Peters et al. 1990); the Alaska– Juneau, Treadwell, Kensington mines in the Juneau gold belt in the North...include the Wonder Mine situated in the Bumbeni Shear Zone, the Klipwal Gold Mine (KGM) on the Klipwal...Klipwal Shear Zone (KSZ), and the Ngotshe Mine located a few hundred meters east of the KSZ (Bullen et al
Report (issue)
TATONDUK-NATION DISTRICT, ALASKA By J. B. MERTIE, Jr. ABSTRACT The Tatonduk-Nation district occupies a triangular...eastcentral Alaska. The Yukon River, which runs N. 60° W. along the south side of this district, delimits...Yukon-Tanana region contains numerous towns and mining camps and in earlier years has been completely...geographically, the Yukon River in this part of Alaska forms a significant boundary, for south of the...limestone have no known counterparts elsewhere in Alaska. In addition, sedimentary rocks of every geologic
Report (issue)
SURVEY Metallogeny and Major Mineral Deposits of Alaska by 1 Thomas K. BundtzenS 7 Henry C. Berg 0"3 ,...endorsement by the U.S.G.S. ' U.S. Geological Survey ^ Alaska Division of Geological and Geophysical Surveys...unpublished data on metalliferous mineral deposits of Alaska, and on recent and older published articles and... universities, the U.S. Geological Survey, the Alaska Division of Geological and Geophysical Surveys... Andersen, Resource Associates of Alaska, Inc., Fairbanks, Alaska Roger P. Ashley, U.S. Geological Survey
Report (issue)
general way the 1 Hcrron, J. S., Explorations in Alaska, 1899: War Dept., Adjt. General's Office, No. 31...1-77, maps, 1901. 211 212 MINERAL RESOURCES OF ALASKA, 1915. Yukon-Kuskokwim divide. A pack train of...and then in a general southerly direction to the Alaska Range. The drainage of the upland area northeast...of large southerly tributaries that head in the Alaska Range. It is said to be navigable for launches...been shown hitherto on the maps of this part of Alaska and has been known only to the natives and a very
Report (issue)
SURVEY METALLIC MINERAL DEPOSITS OF SOUTHEASTERN ALASKA BY Henry C. Berg, John E. Decker, and Beth S....selected nonmetallic mineral deposits in southeastern Alaska........................................................................................... 37 Juneau quadrangle.......................................128 METALLIC MINERAL DEPOSITS OF SOUTHEASTERN ALASKA By Henry C. Berg, John E. Decker, and Beth S....mineral deposits publically known in southeastern Alaska in 1980. This report is part of a regional metal
Report (volume)
Metalliferous Lode Deposits and Placer Districts of Alaska By WARREN j. NOKLEBERG, THOMAS K. BUNDTZEN, HENRY...metalliferous lode deposits and placer districts of Alaska. U.S. Geological Survey Bulletin 1786 Bibliography...No.: 119.3:1786 1. Placer deposits-Alaska. 2. Ore deposits-Alaska. I. Nokleberg, Warren j. II. Series...COVER Mill buildings at Kennecott, Alaska. The Kennecott district Cu-Ag mines in the Wrangell Mountains...deposit description for Kennecott district (number 30 for southern Alaska). Copyrighted drawing used by permission
Journal (article/letter/editorial)
964, Denver Federal Center, Denver, CO 80225-0046, USA SC b State Key Laboratory of Geological Processes...literature. Carlintype gold deposits in Nevada, USA, although characterized by aqueous-carbonic fluids...2002). The RIRGD include the Fort Knox deposit in Alaska, the generally subeconomic deposits of adjacent...ore-forming hydrothermal systems (e.g., Donlin Creek, Alaska: Goldfarb et al., 2004; Taiwan: Craw et al., 2010)...carbonaceous host rocks, such as in the Loulo district in Mali (Lawrence et al., 2013), may also lead
Report (volume)
Smith, Director Bulletin 813 MINERAL RESOURCES OF ALASKA REPORT ON PROGRESS OF INVESTIGATIONS IN 1928 BY...Price 40 cents CONTENTS . Mineral industry of Alaska in 1928, by Philip S. Smith._______-___ Administrative...by S. R. Capps____________________ Mining in the Fortymile district, by J. B. Mertie, jr_______-_ _-______...Selected list of Geological Survey publications on Alaska.______________ Page 1 73 97 125 143 165 I ILLUSTRATIONS...1. Sketch map of the Chakachamna-Stony region, Alaska, showing areas in which timber occurs...'_--____-__--_-
Report (issue)
NATIONAL FOREST AND ADJACENT LANDS, SOUTHEASTERN ALASKA By David A. Brew U.S. Geological Survey, MS 904...of reference materials pertinent to southeastern Alaska as a whole and to the individual fifteen 1:250...ILLUSTRATIONS FIGURES Figure 1. Map of southeastern Alaska, showing location of Tongass National Forest lands...status, U.S. National Park Service lands, State of Alaska, Sealaska Native Corporation, and private lands...and other sources. Figure 2. Map of southeastern Alaska, showing 1:250,000-scale quadrangles and major
Report (volume)
Geologic Studies in Alaska by the U.S. Geological Survey, 1991 AVAILABILITY OF BOOKS AND MAPS OF THE...of Documents. ANCHORAGE, Alaska--4230 University Dr., Rm. 101 ANCHORAGE, Alaska--605 West 4th Ave., Rm...Sales Box 25286 Denver, CO 80225 Residents of Alaska may order maps from U.S. Geological Survey, Map... FAIRBANKS, Alaska--New Federal Building, Twelfth Ave. 101 Geologic Studies in Alaska by the U.S....of the Rock Creek area, Nome Mining District, Seward Peninsula, Alaska 3 Lori E. Apodaca Geochemistry
Report (volume)
..............-'.................. Alaska: 18 25 28 The Juneau gold belt, by Arthur C. Spencer ......Placer mining in Alaska in 1903, by Alfred H. Brooks......._....'.. The Porcupine placer mining district...'Wright........ Gold placers of the Fairbanks district, by L. M. Prindle ............ The Kotzebue placer......... Notes on the geology of the Goldfields district, by J. E. Spurr^...... Oklahoma: Reported gold..... Utah: Progress report on the Park City mining district, by J. M. Boutwell. Geological Survey publications
 
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