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Ore Knob

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Journal Article
Journal: Economic Geology
Published: 01 September 1963
Economic Geology (1963) 58 (6): 997-998.
Journal Article
Journal: Economic Geology
Published: 01 November 1962
Economic Geology (1962) 57 (7): 1116-1121.
...Arthur R. Kinkel Abstract Massive and disseminated pyrrhotite-chalcopyrite-pyrite ore replaced a fault zone in Precambrian Carolina Gneiss of Keith. Closely following sulfide deposition, vein sulfides and silicates in the wall rock were recrystallized under a rising temperature gradient to coarse...
Journal Article
Journal: Economic Geology
Published: 01 September 1967
Economic Geology (1967) 62 (6): 798-825.
...Paul D. Fullagar; Henry S. Brown; Arthur F. Hagner Abstract Chemical analyses of the wall rock gneiss at Ore Knob reveal that iron decreases toward the ore body. Biotite, the principal iron-bearing mineral in the wall rock gneiss, decreases in iron content and abundance toward the ore. Along...
Journal Article
Journal: Economic Geology
Published: 01 April 1980
Economic Geology (1980) 75 (2): 329-334.
Journal Article
Journal: Economic Geology
Published: 01 August 1970
Economic Geology (1970) 65 (5): 541-550.
...Paul D. Fullagar; Michael L. Bottino Abstract Alteration of Rb/Sr ratios of wall rock during mineralization, whole-rock age of Ore Knob wall-rock alteration 400 m.y., Ducktown wall-rock alteration 475 m.y. GeoRef, Copyright 2008, American Geological Institute. 1970 ...
Published: 01 January 1966
EISBN: 9781560802709
... Abstract Induced-polarization (IP) electrical surveys will give excellent and conclusive response over relatively smaller massive mineral occurrences similar to the Ore Knob deposit. Reconnaissance application of the method for such size targets is still somewhat limited by cost, but when...
Journal Article
Journal: Economic Geology
Published: 01 November 1963
Economic Geology (1963) 58 (7): 1159-1160.
Image
Zoned tourmaline from the <b>Ore</b> <b>Knob</b> VMS deposit, North Carolina, USA. The ma...
in > Elements
Published: 01 October 2011
Zoned tourmaline from the Ore Knob VMS deposit, North Carolina, USA. The matrix (black) is chalcopyrite.
Journal Article
Journal: Economic Geology
Published: 01 November 1984
Economic Geology (1984) 79 (7): 1703-1726.
... concentrically alternate with pale yellow or green zones. A few specimens of tourmaline intergrown with massive sulfide (e.g., Ore Knob) display fine, delicate growth lamellae similar to those commonly observed in hydrothermal (vein) sphalerites, skarn garnets, and sphalerites from the massive sulfide deposits...
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 1996
DOI: 10.5382/SP.04.01
EISBN: 9781629490281
... in residual clay shown to French explorers near Mine LaMotte (−1700); 2. discovery of galena in clay near Bonne Terre (−1800); 3. introduction of diamond drill (1869); 4. recognition of the ore-knob relationship; 5. downward ore circulation concept (1860 to 1930); 6. development of written core logs (1936); 7...
Journal Article
Journal: Economic Geology
Published: 01 November 1984
Economic Geology (1984) 79 (7): 1521-1539.
... in North Carolina, and sulfide deposits are similar to those seen in the Ashe at Ore Knob, North Carolina, and Great Gossan Lead, Virginia. Gold and sulfide deposits in northern Georgia were sporadically worked prior to the Civil War until approximately 1920. These deposits were previously thought to have...
Journal Article
Published: 01 February 1978
American Mineralogist (1978) 63 (1-2): 196-199.
... is tetragonal, P 4/ mnc , with a = 8.978(3), с = 15.83(1) A, and two formula weights per unit cell. The observed and calculated densities are 2.37 and 2.36 g/cm 3 , respectively. Optically it is uniaxial positive with ϵ = 1.543 and ω = 1.542. The type locality is the Ore Knob mine, Jefferson, Ashe County, North...
Journal Article
Journal: Economic Geology
Published: 01 December 2016
Economic Geology (2016) 111 (8): 2033-2044.
...Tristan M. Childress; Adam C. Simon; Warren C. Day; Craig C. Lundstrom; Ilya N. Bindeman Abstract New O and Fe stable isotope ratios are reported for magnetite samples from high-grade massive magnetite of the Mesoproterozoic Pea Ridge and Pilot Knob magnetite-apatite ore deposits and these results...
FIGURES | View All (4)
Journal Article
Published: 20 December 1968
Quarterly Journal of Engineering Geology and Hydrogeology (1968) 1 (3): 169-180.
.... Open pit mine dewatering—Knob Lake Mon. Bull. Can. Inst. Min. Metall 1965 58 814 822 Stubbins J. B. Blais R. Zajac I. S. Origin of the soft ore of the Knob Lake Range Mon. Bull. Can. Inst. Min. Metall 1961 54 44 61 ...
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2010
DOI: 10.5382/SP.15.1.05
EISBN: 9781629490397
... of postdepositional strain compatible with the deep environment inferred from the high CO 2 inclusions ( J. Reynolds, pers. commun., 2009 ). In summary, the Money Knob deposit is best characterized as a structurally controlled gold deposit, with ores preferentially in highly altered sedimentary and volcanic units...
FIGURES | View All (5)
Journal Article
Published: 18 January 2018
Geological Magazine (2019) 156 (4): 639-658.
... fluid temperature was at least 500 °C according to the geothermometer with rhodonite/bustamite trace elements measured by laser ablation – inductively coupled plasma – mass spectrometry (LA-ICP-MS). A decrease in ore fluid temperatures with time is consistent with the decreases in the δ 18 O fluid...
FIGURES | View All (13)
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 1996
DOI: 10.5382/SP.04.46
EISBN: 9781629490281
..., and iron sulfides. Ore fluid migration was controlled principally by the pinchout of the Cambrian Lamotte and Bonneterre Formations against the buried Precambrian knob to the west (West Dome), and the narrow linear inner breccia zone, but the fluids also traveled outward in the Bonneterre Formation forming...
Journal Article
Published: 01 March 2019
The Canadian Mineralogist (2019) 57 (2): 215-223.
...Peter Elliott; Anthony C. Willis Abstract Whiteite-(MnMnMg), is a new jahnsite-group mineral found at the Iron Monarch Quarry, Iron Knob, South Australia, Australia, where it occurs associated with triploidite, rhodochrosite, and an unidentified Ca,Mn phosphate carbonate mineral. The new mineral...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 January 2016
Economic Geology (2016) 111 (1): 259-269.
... to the historically mined ores of the Indian Creek and Fredericktown-Mine La Motte districts to the north and east of the Viburnum Trend. In the Brushy Creek mine, the lower ores are not related to obvious stratigraphic controls, such as pinch-outs of the Lamotte Sandstone against Precambrian knobs, but appear...
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Journal Article
Journal: Economic Geology
Published: 01 October 1994
Economic Geology (1994) 89 (6): 1228-1248.
..., Ketchup Knob, and County Line), although a small amount came from part of a porphyry gold system, the East Zone deposit.High sulfidation precious metal ore is hosted by strata-bound bodies of pervasively silicified, welded ash-flow tuff. The ore-bearing tuff is bounded on all sides, both stratigraphically...