 | | Report (issue) | | Stratigraphy of the Mascot-Jefferson City Zinc District, Tennessee GEOLOGICAL SURVEY PROFESSIONAL Prepared...Prepared with the cooperation of the Tennessee Department of Conservation^ Division of Geology PAPER... 277 Stratigraphy of the Mascot-Jefferson City Zinc District, Tennessee By JOSIAH BRIDGE With an introduction...PAPER 277 Prepared with the cooperation of the Tennessee Department of Conservation^ Division of Geology...1929_____________________ Recent work in the Knox group of East Tennessee __ The geologic map and mapping procedures._______ |  | | Journal (article/letter/editorial) | | and Brecciation, Mascot-Jefferson City Mississippi Valley-TypeDistrict,Tennessee FREDERICK M. HAYNES*...wall-rockalterationandbrecciation in theMascot-Jefferson City district,thelargestpartof the EastTennessee Mississippi...KnoxGroup.Ore is associated with "recrystalline dolomite"that replacedlimestoneandthereis an inversecorrelationbetweenthe...surfacedrill holescoveringthe 110-km2Mascot-Jefferson City district, eachofwhichprovidedstratigraphic dataandquantified...Valley-typeore deposi* Presentaddress: ExxonCompany,USA,P.O. Box 1600, Midland, Texas 79702. 0361-0128/94/1532/51-1654 |  | | Journal (article/letter/editorial) | | Microstratigraphy in GangueDolomite, the Mascot-Jefferson City District,Tennessee 5•[ICHAEL L. EBERS AND OTTO C...gangue dolomite associatedwith sphalerite mineralization in the Mascot-JeffersonCity district. A total...lation of the gangue dolomite cathodoluminescent zones throughout the district was observed. A single...developmentof three consecutivezonesthroughoutthe district. Three Qther districts were studied and all exhibited...ganguedolomiteweretilne correlativethroughthe Mascot-Jefferson City andpossiblythe CopperRidge districts. Preliminary |  | | Journal (article/letter/editorial) | | ORDOVICIAN EAST D. HOAGLAND, ROBERT ZINC DEPOSITS TENNESSEE WILLIAM T. HILL, AND E. FULWEILER ABSTRACT...zinc ore in the United States, occur mainly in the Mascot-JeffersonCity and the Copper Ridge districts, in...occursin low-iron sphaleriteassociated with gangue dolomite in dissolutionbreccias and collapsestructures...dolomitizedlimestoneand interbeddedfine-grained "primary" dolomite. The sphaleritewas depositedprincipallyas filling...and Copper Ridge formationsin the Powell River district, and, finally, to the very importantLower OrdovicianKingsportand |  | | Journal (article/letter/editorial) | | Mississippi Valley-type zinc deposits Mascot-Jefferson City district, Tennessee Implications for the age of mineralization...Oak Ridge, Tennessee 37830, USA Department of Geological Sciences, University of Tennessee, Knoxville...Knoxville, Tennessee 37996 1410, USA Received: December 1, 1991 / Accepted: June 15, 1993 Abstract. The Mississippi...sphalerite mineralization in the Mascot-Jefferson City zinc district of East Tennessee occurs as open-space fillings...main-stage sphalerite mineralization in the Mascot-Jefferson City district and, by analogy, in other Lower Ordovician-hosted |  | | Journal (article/letter/editorial) | | 102, pp. 1345–1352 DOLOMITE FRONTS AND ASSOCIATED ZINC-LEAD MINERALIZATION, USA DELBERT D. HARPER 526...526 Walker Blvd., Maryville, Tennessee 37803 AND DAVID M. BORROK† Department of Geological Sciences...districts in the United States include those in Tennessee, southeast Missouri, and the TriState area of...Mississippi Valley district in Illinois, Iowa, and Wisconsin, the Balmat Edwards district in New York, the...Austinville-Ivanhoe district in Virginia, the Friedensville district in Pennsylvania, the Metaline district in Washington |  | | Journal (article/letter/editorial) | | U.S.A. Fluid inclusion gas chemistry in east Tennessee Mississippi Valley-type districts: Evidence for...University of Michigan, Ann Arbor, MI 48 109-1063, USA (Received October 15, 1990; accepted in revised form...from Mississippi Valley-type districts in east Tennessee reveal the presence of several distinct aqueous...sphalerite from the Mascot-Jefferson City district, lower for the Sweetwater district, and lowest for the...the Copper Ridge district. Compositional similarities in the inclusion fluids from the three districts |  | Nakai, Shun'ichi, Halliday, Alex N, Kesler, Stephen E, Jones, Henry D, Kyle, J.Richard, Lane, Thomas E (1993) Rb-Sr dating of sphalerites from Mississippi Valley-type (MVT) ore deposits. Geochimica et Cosmochimica Acta, 57 (2) 417-427 doi:10.1016/0016-7037(93)90440-8 | Journal (article/letter/editorial) | | 109-1063, USA ‘Department of Geological Sciences, University of Texas, Austin, TX 78713-7909, USA ‘Department...that contain galena, sphalerite, fluorite, bar&e, dolomite, calcite, and quartz. Although they are thought...Sphalerites from Immel mine, Mascot-Jefferson City district, east Tennessee, define a Rb-Sr age of 347...29 Ma for sphalerites from Coy mine in the same district, but inconsistent with models that ascribe their...is suspected. Sphalerites from the Pine Point district, Northwest Territories, Canada, define a Rb-Sr |  | | Journal (article/letter/editorial) | | PARAGENESISAND GEOCHEMISTRY OF THE IDOL MINE ZINC DEPOSIT, TENNESSEE JUNLU, JAMESR. CRAIG,ANDJ. DONALDRIMSTIDT Department...bleachedrims (Fig. 2) and type 2-Copper Ridge district near the town of Thornhill in without bleachedrims...bleachedrims. Typical type 1 brecciacontains Grainger County, Tennessee.Production was carried out dolostonefragments...etandMisra,1979;Craig,1980) cut by sphalerite-dolomite veins,there is no bleachingor recognized that...orogeny,theregionwasdisrupted by minerals include dolomite, marcasite,pyrite, calcite, a seriesof northe |  | | Journal (article/letter/editorial) | | 1Department of Geological Sciences, University of Tennessee, Knoxville, TN 37996 1410 (U.S.A.) "2Department...of the Right Fork area in the Central Tennessee zinc district. The technique permits the detection of...electron microprobe (EMP). Individual zones in gangue dolomite, recognized using cathodoluminescence (CL) microscopy...associated with the zones. Bright-red luminescence of dolomite was not suppressed in zones having F e/ M n ratios...ppm. The concentrations of Fe and Mn in zoned dolomite gangue were from 4 to 40 times higher than their |  | | Journal (article/letter/editorial) | | OrdovicianAge {or CollapseBreccias in the East Tennessee Zinc Districts as Indicated by Compactionand...Introduction STUDYOf compactionfeaturesof the Mascot Dolomite and the Kingsport Formation (both Lower Ordovician)...The present physical characteristics of the Mascot Dolomite and the Kingsport Formation are mostly the...COPPERRIDGE/Thorn DISTRICT • Hill section /' •SCOT-J•FERSON CI• DIST•CT TENNESSEE rocks in the zinc...samplesof the G-430/434bed of the Mascot Dolomite,Mascot-Jefferson City district, Tennessee.Stippledpatternis |  | | Journal (article/letter/editorial) | | SedimentaryFeatures at the Flat Gap Mine, Treadway,Tennessee W. T. HILL, R. G. MORRIS,AND C. G. HAGEGEORGE...mineralizationis localized in breccia bodiesformed in the Mascot and Kingsport Formations when the beds were flat...porouslimestonebeds to the extent that interbeddedand overlying dolomite beds collapsedforming long, narrow breccia bodies...Productionwas started in 1959, and the districtof East Tennessee approximately 30 miles mine currently is producing...approximately 2,000 northeast of the Mascot-Jefferson City district(Fig. tons of about 3 percentzinc ore |  | | Journal (article/letter/editorial) | | developmentof the orebearing structures of the Mascot-Jefferson City district J. D. RI•)GE and on the genesis of...formation and Mascot dolomite--a symposium: age for collapsebrecciasin the east Tennesseezinc district Ecoa....southwesternVirginia. These deOrdovician rocks in eastern Tennessee was the positsare very similar in composition...the Mascotand Kingsportbut held in Knoxville, Tennessee,in March 1969, and are not closelyrelatedto the...physical and chemical way related to those in the Mascot and Kingsport, properties. Such a theory explains |  | | Journal (article/letter/editorial) | | Mills (Zn), Greeneville-FallBranch(Ba-F), Mascot-Jefferson City (Zn), Powell River (Zn-Pb), Russell-Tazewell(Ba-F)...whichhavemorecomplexcompositions. SphaleritefromMascot-Jefferson City, Eve Mills, Sweetwater, andRussell-Tazewell...previouslypublished87Sr/SaSr isochronageobtainedfor the Mascot-Jefferson City district.Bariteandsparrydolomitecompositions...solutions mixedin mostareasexceptthe Mascot-JeffersonCity district,where zinc mineralizationis strongest...chianMississippi Valley-typemineralization andoro- in the Tennessee embayment, whichliessouthof the genic events (Hearn |  | | Journal (article/letter/editorial) | | Mississippi Valley-type deposits in central and east Tennessee, USA, using Pb isotopes Adriana Potra ⁎, Austin...Mississippi Valley-Type (MVT) Central and East Tennessee (TN) districts contain lead-zinc deposits that...Mine in the East TN District plot within ranges defined by other East TN District samples from previous...or ores from the Elmwood Mine in the Central TN District are more radiogenic and plot between samples from...Appalachian region include the Central and East Tennessee districts, and the Timberville, Nittany Arch, |  | | Journal (article/letter/editorial) | | rocks from Pennsylvania, Maryland, Virginia, and Tennessee yield Late CarboniferousEarly Permian ages (278-322...sphalerite in several mines of the Mascot-Jefferson City District. E. Tennessee. Regional potassic alteration...Virginia, the Shadt, Dolomite in Virginia, and the Maynardsville Limestorx in Tennessee and Georgia. These...Medium Large mine or mine mine pi*spect or or district distract FIG. I I Map showing sampled occurrences...jasperoid gangue in three minixhS of the Mascot-Jefferson City district in eastern 1 c’n nessee (New Market |  | Taylor, Mark, Kesler, Stephen E., Cloke, Paul L., Kelly, William C. (1983) Fluid inclusion evidence for fluid mixing, Mascot-Jefferson City zinc district, Tennessee. Economic Geology, 78 (7) 1425-1439 doi:10.2113/gsecongeo.78.7.1425 | Journal (article/letter/editorial) | | InclusionEvidencefor Fluid Mixing, Mascot-Jefferson City Zinc District, Tennessee MARK TAYLOR,* STEPHENE. KESLER...fluid inclusions in sphaleritefrom the Mascot-Jefferson City zinc districtexhibitthreesignificant relationships:...fluid inclusiontemperatures (laterallyacross the district or within a mine, verticallythroughthe stratigraphic...sphaleritedepositionin the East Tennesseezinc district. nate brines.Rangesof temperatureand salinityconditionsduring...ore depositionhave beenobtainedfor Geologyof the Mascot-JeffersonCity many MississippiValley-type districts |  | | Journal (article/letter/editorial) | | Environmentof the Zinc Depositsof the Mascot-Jefferson City District, Tennessee J. E. MCCORM•C•:,L. L. EVANS,R...jointswithin the Kingsport Formation in the Mascot-JeffersonCity district formed structuresthat were later mineralizedby...structures, whichare typicalof the middle part of the district, show extensivesolutionand alteration of the S-bed...ore structures,presentin the westernpart of the district, showvariable alteration and minor amounts of...limestonesin the central and easternparts of the district. Introduction COMMV. RC•ALzinc occurs,intermittently |  | | Journal (article/letter/editorial) | | Virginia; Mascot-JeffersonCity district, Tennessee;and Copper Ridge district, Tennessee. Representativesof...discoveredzinc depositsin the Lower Ordovician of Middle Tennessee are similar in all essentialr.espectsto the Tennesseesub-type...part of the evidencethat a Friedensville, Mascot-Jefferson City, CopperRidge reconstructionof the regional...geologicinterest (Brown, Ordovician of Middle Tennessee are in their earliest 1935; Currier, 1935; Callahan...Tennesseedeposits. In a genetic the Mascot-JeffersonCity district, Copper Ridge as well as geographicsense |  | | Report (issue) | | Maryland Michigan New York Ohio Pennsylvania Tennessee Vermont Virginia West Virginia Wisconsin 18 20...outlined and a single symbol used to represent the district or area. Many of the barite deposits shown on...sphalerite, galena, barite, fluorite, calcite, dolomite, and cryptocrystalline quartz) has been considered...rocks is dolomite and the association of coarsely-crystalline dolomite (called white gangue dolomite or recrystalline...recrystalline dolomite) with ore is a common feature. Breccia, formed tectonically, by solution collapse |  | | Journal (article/letter/editorial) | | Depositsin the Lower Ordovician Formations of East Tennessee W. T. Hn.•., J. E. McCoRM•cIc, ANI)Hm.•4UTHW•...I)OW, Abstract Most recentwork. ers in the East Tennessee zinc and baritedistrictsare in general agreement...evidence in support of the concept that muchsecondary dolomite mayhavebeenformedby groundwater. On the otherhand...sequences from mine to mineand from districtto district. Perhapsthe major difficultyin the correlationis...Director, U.S. Survey. Geological the East Tennessee zinc districts since the mid- 1950's.Someof |  | | Journal (article/letter/editorial) | | 00:11 06 November 2014 Eagle Mine, Cilman, Eagle County, Colorado W orld production of zinc is enormous...to 5 cm across have been found in the Lockport Dolomite, particularly in Monroe and Niagara Counties....gypsum have been found in recent years in the Dolomite Products quarry, Walworth. Good sphalerite specimens...commercial zinc mines of the BalmatEdwards district in Saint Lawrence County (Smith and Figure 1. A fine example...in the zinc ores of the Franklin mines, Sussex County, New Jersey (Palache, 1937).Although approximately |  | | Journal (article/letter/editorial) | | thatareformed? These SVVEETVVATER , . \ MASCOT-JEFFERSON CITY problemscanbe investigated mosteffectively...Cove) in North Carolina.The Cartersvillebarite district in fluorite-barite rich.Zinc-richdeposits are...theAppalachians. It consists of barite, andincludethe Mascot-Jefferson City andCopperRidge Valley-type districts andthe...Sphalarite MASCOT-JEFFERSON UpperKnox(LowerOrdovician)-hosted Mississippi Valleytypedeposits Mascot-Jefferson...Mascot-Jefferson City district:The Mascot-Jefferson City district, withfiveminesrepresented, hasthehighest average |  | | Journal (article/letter/editorial) | | Valley-Type Mineralization: Evidence from East Tennessee and Pine Point FREDERICK M. HAYNES AND STEPHEN...sphaleriteanddolomitefromthe MascotJeffersonCity zinc district of East Tennesseeand the Pine Point lead-zincdistrict...sand sulfur-richwatersin ore formationin that district. Further, the presence of excess S in ore-stage...thelackofdetectable sulfurin thedecrepitates fromMascot-Jefferson City oressuggests that mineralizationthere mayhavebeen...two major Mississippi Valley-typedistricts,the Mascot-JeffersonCity districtof EastTennesseeand the Pine |  | | Journal (article/letter/editorial) | | 533 and McDougal(1971, p. 768, Fig. 6) for Tennessee provedto be older than early Middle Ordovician...structures,JeffersonCity Mine, JeffersonCity, Tennessee: EcoN. GEOmG¾, V. 66, no. 5, p. 763-769. Heyl...with Reynolds,1958, and Mullens, Valley zinc-lead district [Ill.-Iowa-Wis.]: U.S. Geol. The effects of solution...solution of limestone and dilation of thicker bedded dolomite on the volume of ore in Groveanticline(Mullens...Environment of the zinc diposits of the Mascot-Jefferson City District, Tennessee: EcoN. GEoI.oG¾,v. 66, no. 5, |
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