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Copper pitch ore

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Journal Article
Published: 01 September 1929
American Mineralogist (1929) 14 (9): 313–318.
...F. N. Guild Abstract A jet black to brownish pitch-like material rich in copper is frequently encountered among the supergene minerals of copper deposits. It has a conchoidal fracture and when occurring in large enough pieces, closely resembles obsidian or even anthracite coal. It seems to vary...
Journal Article
Journal: Economic Geology
Published: 01 May 1985
Economic Geology (1985) 80 (3): 614–626.
...Oe Amcoff; M. Jeppsson; Stefan O. Selkman Abstract The ore at Saxberget is a strata-bound massive to semimassive zinc-lead-copper-silver mineralization of Proterozoic age. It has the form of a slab extending 400 m in the horizontal (E-W) and more than 1,500 m in the pitch direction (35 degrees -45...
Image
Microscopic relationships of <span class="search-highlight">copper</span> silicate and oxide <span class="search-highlight">ores</span> from the Huinqu...
Published: 01 November 2007
F ig . 3. Microscopic relationships of copper silicate and oxide ores from the Huinquintipa and Mina Sur deposits. (A) Scanning electron micrograph of a sample (HUN 1) from Huinquintipa. The clast is successively overgrown by copper pitch (hydrated oxides) and chrysocolla. (B) Photomicrograph
Journal Article
Journal: Economic Geology
Published: 01 January 1954
Economic Geology (1954) 49 (1): 1–30.
...Hugh Exton McKinstry; Aimo K. Mikkola Abstract Since the first discovery of sulphides in 1793, the Vermont Copper Belt has yielded ore containing an aggregate of about 120 million pounds of copper. The orebodies occur in schists of Paleozoic (probably Ordovician) age in the middle-grade zone...
Journal Article
Journal: Economic Geology
Published: 01 December 1971
Economic Geology (1971) 66 (8): 1168–1175.
...Allen H. Throop; Peter R. Buseck Abstract A newly developed deposit at the Inspiration Mine has ore consisting of black and green chrysocolla. No primary copper minerals occur within the deposit. The chrysocolla is partly in rocks that are younger than the nearby major copper mineralization.We...
Journal Article
Journal: Economic Geology
Published: 01 July 1990
Economic Geology (1990) 85 (4): 714–736.
... to 45 degrees S, with a horizontal extension on the surface of about 500 m and more than 1,500 m in the pitch direction (southeast); the thickness can reach up to 40 m. From the footwall to the hanging-wall side, the ores include stratiform massive ball ore, semi-massive to disseminated strata-bound Zn...
Published: 01 January 2005
DOI: 10.5382/AV100.22
EISBN: 9781934969519
... from arid regions, would plot in the malachite field (from W oods and Garrels, 1986). Exotic Cu ore (Figs. 4 , 9f ) typically contains fewer oxidized mineral species than its in situ counterparts. Chrysocolla, atacamite, copper wad, and copper pitch, accompanied by gypsum gangue (e.g., Fam...
Series: Economic Geology Monograph Series
Published: 01 January 1967
EISBN: 9781934969984
... forming sheet-like deposits in heavily crumpled Famennian ribbon dolomites. Minor amounts of pyrite and copper and silver sulfides are present. 2. Galena-sphalerite-pyrite in massive form as subvertical lenses and cross veins in gently pitching Turne dolomites. The pyrite (60%-90%) is cut by veinlets...
Journal Article
Published: 01 January 1974
Canadian Journal of Earth Sciences (1974) 11 (1): 165–176.
...Anton Brown Abstract An approximate net slip for the No. 3 Vein fault at Opemiska Copper Mines (Que.) Ltd. property, in northwestern Quebec, has been obtained by comparing ore widths with the potential dilation from several possible fault movements. A reference plane of 096 °strike, 71 °north dip...
Journal Article
Journal: GSA Bulletin
Published: 01 May 1939
GSA Bulletin (1939) 50 (5): 777–818.
... resulted in marbleization of the limestone and hornstonization of the shales; the stronger effects were epidotization of the aluminous rocks and andraditization of the limestones. The lower plate was mildly metamorphosed. The sphalerite ore bodies, essentially uncontaminated by lead and copper...
Image
Weathering red-bed–type <span class="search-highlight">copper</span> deposit ( Kirkham, 1989 ;  Brown, 2005 ;  Th...
Published: 01 July 2021
Fig. 5. Weathering red-bed–type copper deposit ( Kirkham, 1989 ; Brown, 2005 ; Thorson, 2005 ) comprising reduced continental clastic rocks hosting chalcocite-bornite ± chalcopyrite; pyrite displays restricted metals transport. Because reactive alteration is nominal in these ore deposits
Journal Article
Journal: Economic Geology
Published: 01 November 2007
Economic Geology (2007) 102 (7): 1311–1320.
...F ig . 3. Microscopic relationships of copper silicate and oxide ores from the Huinquintipa and Mina Sur deposits. (A) Scanning electron micrograph of a sample (HUN 1) from Huinquintipa. The clast is successively overgrown by copper pitch (hydrated oxides) and chrysocolla. (B) Photomicrograph...
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Journal Article
Journal: SEG Discovery
Published: 01 July 2021
SEG Discovery (2021) (126): 16–27.
...Fig. 5. Weathering red-bed–type copper deposit ( Kirkham, 1989 ; Brown, 2005 ; Thorson, 2005 ) comprising reduced continental clastic rocks hosting chalcocite-bornite ± chalcopyrite; pyrite displays restricted metals transport. Because reactive alteration is nominal in these ore deposits...
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Journal Article
Journal: Economic Geology
Published: 01 May 2009
Economic Geology (2009) 104 (3): 333–349.
... = cuprite, dg = digenite, dj =djurleite, hol = hollandite, id = idaite, krn = krönkite, lib = libethenite, lind = lindgrenite, mal = malachite, psmal = pseudomalachite, Cu = native copper, neo = neotocite (Cu-Mn oxides), pitch = pitch limonite (copper pitch), rx = roxbyite, ten = tenorite, tur = turquoise...
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Journal Article
Journal: The Leading Edge
Published: 01 February 2023
The Leading Edge (2023) 42 (2): 103–111.
... Archaean basement ( Martinsson and Wanhainen, 2000 ), consist of the massive Kiruna-type apatite-iron-ore deposits, epigenic Cu, as well as iron-skarn and iron oxide copper-gold deposits ( Wanhainen, 2005 ). The Nautanen deposit lies within the larger Aitik-Malmberget Field that represents...
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Journal Article
Published: 01 April 1989
Earth Sciences History (1989) 8 (1): 83–86.
... the discovery of radioactivity had first been located in Jáchymov. These, together with four other non-uranium minerals also first described from that famous mineral locality more than a century ago, also characterize the unconformity-type uranium ore bodies of northern Saskatchewan. It is not our intent...
FIGURES
Journal Article
Published: 01 March 2016
Russ. Geol. Geophys. (2016) 57 (3): 409–420.
... zone and present data on the redeposition of copper–pyrite ores as separate weakened zones, e.g., curves of folded structures. In my opinion, large-scale dislocations always lead to the transformation of primary rock substrate, formation of tectonite complexes, and redistribution of ore substance...
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Journal Article
Published: 01 February 2015
Mineralogical Magazine (2015) 79 (1): 217–218.
... deals with the uses of minerals and introduces the important terms used to define the type of product such as ores, industrial minerals, chemical feedstock and the lesser known display minerals sector and gemstones. The final chapter (Chapter 7) covers the effect of minerals on the environment...
Journal Article
Journal: Economic Geology
Published: 01 January 2013
Economic Geology (2013) 108 (1): 163–171.
... blanket, overlying a high-grade supergene chalcocite body that extended up to 800 m in depth ( Fig. 2 C). Oxide ore assemblages contain a large variety of minerals but primarily antlerite, brochantite, atacamite, chrysocolla, and Cu pitch. Wall-rock alteration mineralogy of the oxide ores is not well...
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Journal Article
Journal: Elements
Published: 01 August 2018
Elements (2018) 14 (4): 257–261.
... Eocene-Early Oligocene 39–34 10.05 0.98 0.11 0.011 793 0.77 0 0 −27.33, −66.61 Bajo de la Alumbrera, Argentina Miocene-Early Pliocene 8.02– 6.75 4.27 0.53 0 0 516 0.64 2,015 2.5 Porphyry copper deposits are only one type of ore deposit types that constitute “porphyry...
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