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| .......................... . Situation of the district ...................................................................... General geology of the district ................................................40 41 41 4 CONTENTS. General goology of the district-Continued. Structure ........ ~ . . . . . . .... . . . . . . . . . . . . . . . . . . . . . . Chalcocite enrichment.~.................................... . . . . . . . . Alteration of covellite to chalcocite . . . . . . . . . . . . . . . . . . . . . . |
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| THE COPPER DEPOSITS OF THE CLIFTON-MORENCI DISTRICT, ARIZONA BY w-ALDEMAR LINDGREN WASHINGTON GOVERNMENT... . . . . . . . . . . . . . . . . . . . . . . Chalcocite ..... .. .................................·...._________ ..•• _. _.•...•. _... Oxidation of the chalcocite zone _________ . ________ . ____ . _. _.. _....______ ..... ___ ... _.. _.. _. __ ..... ________ Chalcocite zone ...... ___ ._ ..... ____ . _____ . ____.... ______ •... _. ___ .. __ Ore bodies of the chalcocite zone _______ . __ . __________ .. ____ . _____________ |
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| AMERICAN VOL.VIII GEOLOGIST OCTOBER,i9i 3 CHALCOCITE No. 7 ENRICHMENT2 ARTI•UR C. SPENCER. PRELIMINARY...report onthegeology andoredeposits oœ theEly district, Nevada.Published bypermission of theDirector...specialreference.to the disseminatedores of the Ely district, Nevada, which, as mined, carry from 2o to 6o...chalcopyriteand pyritehavebeenpartly replacedby chalcocite, but the coatingsof this secondarymineral are...seriesthe culminatingreactionsinvolvethe depositionof chalcocite. At first the waters contain free sulphuricacid |
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| Landlocked Bay, the Gladhaugh mine at Ellamar, and the Big Bonanza mine on Latouche Island were staked...Capps, S. R., and Johnson, B. L., The Ellamar district, Alaska: U. S. Geol. Survey Bull. 605, pp. 52-61...The gold and copper deposits of the Port Valdez district, Alaska: U. S. Geol. Survey Bull. 622, pp. 131-188...Prince William Sound; Mineral resources of Jack Bay district and vicinity, Prince William Sound: U. S. Geol...8 Bateman, A. M., Geology of the Beatson copper mine, Alaska: Econ. Geology, vol 19, pp. 338-368, 1924 |
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| are practically all limited to one district and to one general epoch of formation. The marked parallelism...as possible, in their geographic sequence from south to north. The order of treatment will have to be...The recent investigations of Knopf in the Juneau district show that locally, at least, Mesozoic sediments...well-defined belt of mineralization from Snettisham on the south to Berners Bay on the north; but some gold has been...the intrusive masses themselves. The Ketchikan district contains some important copper deposits. Of these |
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| valuable minerals that have yet been produced in the district under consideration. They are named in the order...ALASKA, 1922. * The oldest known rocks of the district are included in the Strelna formation, probably...the original Chitistone limestone of the Nizina district, and the name Chitistone limestone has been restricted...and the McCarthy shale of the KotsinaKuskulana district. The Chitistone limestone, in which the great...shale, which is widely developed in the Nizina district, are nowhere known to contain mineral deposits |
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| copper ores of New Jersey and the many attempts to mine them. The report is particularly timely in that............................................ 14 Chalcocite .................................................................................. 39 Schuyler mine .......................................................................................... 69 Dod mine ................................................................................... 70 Glen Ridge mine ............................................... |
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| GEOLOGY AND MINERAL .RESOURCES OF THE NIZINA DISTRICT, ALASKA BY FRED H. MOFFIT AND STEPHEN R. CAPPS...formation on south branch of Nikolai Creek; B, Sandstone of Kennicott formation on ridge south of Nikolai...tributary of McCarthy Creek northeast of Bonanza mine; B, Detail of surface of rock glacier on tributary...____ 5. Sketch map of the area near the Bonanza mine, showing the limestone-greenstone contact, the location...exposed in the upper northern tunnel at the Bonanza mine 5 18 22 32 36 56 56 58 64 84 11 31 37 65 87 88 |
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| rocks — Acid sulphate waters in igneous rocks — Mine waters of sulphate type —Sodium carbonate waters...Economic notes — The gold-bearing conglomerates of South Africa — Platinum placers — Cassiterite placers...sandstone European occurrences American occurrences South America Africa Genesis of sedimentary copper ores...amygdaloids The veins Mineral association Origin Mine waters Rock alteration Mining and smelting operations...telluride of region, district district district district district district Nevada. CHAPTER XXV |
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| and Cenozoic sandstone-hosted copper deposits in South China W. Chen Institute of Mineral Deposits, Chinese...and Cenozoic sandstone-hosted copper deposits in South China are confined to the variegated rock formation...rock formation. The mineralization comprises chalcocite, bornite, chalcopyrite, native copper, covellite...Geological age of ore strata The copper deposits in South China mainly occur in the Cretaceous and Eocene...sandstone-hosted copper deposits are widely distributed in South China, and their reserves make up 20.93% of the |
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| Queen mine ..... _......... _.................. _................ _... Calumet and Arizona mine ........Lowell mine ................... _............. _.. _.............. _. __ .... _.. Gopper King mine ................... _... . . . . Calumet and Pittsburg mine .................... _...... _...... _. . . . .... . . . . . . . Lake Superior and Pittsburg mine ... _.................................. __ . 85 85 85...West mine ..... ----- ..... __ ................... __ ------ ........ ___ .. Easter Sunday mine .... |
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| of cases cannotbeutilized'. Theprimary oresare chalcocite,with small amounts of bornite, chalcopyrite and...mentionedare (besidessecondarymalachite and azurite): chalcocite,chalcopyrite,tetrahedrite (?), barite, vanadi-...and chalcocite are also found. 1 In Bohemia • the lower Permian (Rothliegende.)along the south slope...plant remains. The mineralsare cerussite,galena,chalcocite(?) and carbonates. The best known depositsof... 19o5, pp. 221-232. Emroohs,W. H., "The Cashin Mine," Bull. U.S. Geol. Survey No. 285, I9O6,'pp. 125-128 |
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| WHICI-I GEOLOGIST APRIL, I9O9 BIG BONANZA COPPER MINE, ISLAND, ALASKA2 FRANCIS C•URC• No. 3 LATOUCHE...Grant2 andby W. H. Weed? Later developments at this mine are mentionedby Moffit. 4 The writer examinedthe...position of the Big Bonanza mine; the cross (X) shows the location of the Ellamar mine; the other copper prospects...openforestof smallfirs THE BIG BONANZA COPPER MINE. 2o3 clothesthe islandwith the exceptionof the...situation and surround- ings of the Big Bonanza mine are well shownin Fig. 3ø. HISTORY. :a. The aborigineswere |
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| ...................................... 314 Chalcocite and covellite .................................Colchesterand Pictou Counties. Sporadicattemptsto mine some of the above have been made sincethe end of...ht in the north to the CobequidMountainsin the south,and from Pictou in the eastto aboutsevenmileswestof...rate than the resistant older formations to the south. The •at relief of the area has resultedin a scarcityof...commonthroughout. 312 J. J. BRUMMER TABLE Period Epoch I Group/Formation Pictou Red arkosic sandstone |
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| . XXX THE SILVER GEOLOGY JUNE--JULY,. 1955 MINE WALDEMAR OF COLQUIJIRCA, No. 4 PERU. LINDGREN...most productivesilver mine of North and South America, is situated 8 kilometers south of Cerro de Pasco...an elevationof about4,ooo meters. It is a small mine; the greatestdepth attained,as far as I know, is...For comparison, it may be recalledthat the Premier mine, British Columbia,produced27,ooo,oooouncesof silver...Standard Mine produced4,ooo,oooouncesin 1925. The whole silver productionof the Tintic district from 1869 |
 | | Book (edition) |
| —Interpretation sulpliide waters — Chloride water analyses Mine waters waters— Sulphate waters Oxidation of waters—“Carbonate...Economic notes The gold-l>earing conglomerates of South Afri(*A— Platinum placers Cassiterite placers— Monazite...veins in basic lavas General features The Kennecott mine, Alaska— ( ’opper sulphide veins in intrusive basic... region, district district-“' — — — Rico district—Lake City district— Creede district Summary C'asapaica...amygdaloids— The veins— Mineral association Origin Mine waters Mining and smelting operations-- The copper |
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| ........ . . , ... -.. . Rio Hondo. (Twining) district . . . . . . . . . . . . . ......................::.:::.::: ::: :::: :: ':::: :: ::::. Red River district. ..................•......... -~ . . ...........·::-; : : :. ::.·.i?:5.•.:...,. .... Black.Copper mine ........ ............. ~ ... .. . .... ·.........._ •• __ • ~. _·_: :: . . __ . _•... __ •Jay Hawk mine ........... ~ ........ .. ........ . .. .. . ..... :· ......... _._ . ......... . Golden Treasure mine ..... ... ·.....·... : . . . . . . . . . . . . __ |
 | Hou, Zengqian, Zaw, Khin, Pan, Guitang, Mo, Xuanxue, Xu, Qiang, Hu, Yunzhong, Li, Xingzhen (2007) Sanjiang Tethyan metallogenesis in S.W. China: Tectonic setting, metallogenic epochs and deposit types. Ore Geology Reviews, 31 (1) 48-87 doi:10.1016/j.oregeorev.2004.12.007 | Journal (article/letter/editorial) |
| 1997). By the end of the Early Palaeozoic, the South China Ocean collided with the Palaeo-Jinshajiang...Scattered continental blocks, such as the Yangtze (South China), SinoKorean, Qaidam, Tarim and Changdu–Simao...granite porphyry; syenitic granite porphyry From south to north: tourmalinization (quartz sericite zone)...sphalerite, tennantite, chalcocite Chalcopyrite, molybdenite, pyrite, magnetite, chalcocite, bismuthinite Chalcopyrite...Metallic comm. Zhongdian arc (south), Triassic Yidun arc Zhongdian arc (south), Triassic Yidun arc Margin |
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| Graton and others.l Since ore have been enbornite-chalcocite-tetrahedrite bodies of disseminated crescent-shaped...crescent-shaped enormous the zone within countered in a north-south position original the rr'ay represent zor'e This...Gratonite has been found in two other localities in the mine. A small amount has been observed replacing galena... GEOI,OGICOCCURRENCEOF GRATONII'E IN PERU the district, indicates some primary copper mineralization...gratonite brushed from a vug in pyrite. X8.5. ary chalcocite, since sphalerite is a strong precipitant (by |
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| geology-Continued. 9 Epitome of the. geologic history of the 9 district .....•......................... 9 Part II. The........ . 20 Bluestone :mine ................ ·........ . 2'0 Mason Valley mine ............................. . 21 _ Malachite mine ............ .' .......... ·.. . 22 McConnell mine ........ : ..............Nevada mine ................... . 22 Greenwood prospect ........... , ........ . 23. Ludwig mine .............. 23 Douglas Hill mine ........................ . 25 Casting Copper mine ..................... |
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| 399 Geology of a portion of the Santa Ynez Kiver district, Santa Bar bara County, California [abstract]...result of observations made on the action of chalcocite* in becoming colloidal in mildly alkaline solutions...temperature minerals in the so-called “primary” chalcocite deposits * Introduced by C. F. Tolman, Jr. *...PAPERS of the Bonanza Mine, Alaska; two-colored chalcocite; meta-colloidal chalcocite. and the use of the...sulpho-salts, such as pyrite, chalcopyrite, bornite, chalcocite, etcetera. The sericite of metamorphic rocks |
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| contributed to this output, but only two Lake (Leadville district) and San Juan yielded notable amounts. The Leadville...said that Colorado does not contain a single copper mine of prominence. Of the counties mentioned in the...associated. There is evidence, however, of a far older epoch of ore deposition, antedating, in fact, the whole...ECONOMIC GEOLOGY, 1907, PART I. been shown in South Dakota,* Wyoming,6 New Mexico,0 and Arizona,d and...general plateau south of South Park. Arkansas River traverses the county from north to. south in a series |
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| recent discoveries such as the platinum deposits of South Africa. Third, the results of the re-examination...waters-Summary- Interpretation of ·water analyses-Mine waters-Chloride waters- Carbonate waters-Sulphate...deposits-Econo1nic notes- The gold-bearing conglomerates of South Africa- Platinum placers-Cassiterite placers-l\ionazite...sandstone-European occurrences-American occurrences-South America-Kata.nga-Genesis of sedimentary copper ores-Vanadium...veins in basic lavas-General features-The l(ennecott mine, Alaska-Copper sulphide veins in intrusive basic |
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| ................. Supergene minerals of Arizona mine................................................................................... Section along south side, Santa Clara Canyon......................................................... Plan of Arizona mine.................................................................. Plan and section of the Wheeler mine................................................................. Plan and section, American Basin mine................................................ |
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| 0026-4628 ‘Continued on p. 247 Articles The Outlaw mine, Nye County, Nevada ..............................Cassedanne & L. Barreto The Messina mining district, South A frica .....................................Valley Road Watsonville, California 95076 The Outlaw mine has long been known as an occurrence o f rare and...benjaminite, fo r which it is the type locality. The mine has been idle fo r more than 60 years, and because...More than 30 minerals have been identified from the mine and studies continue on the sulfosalt mineralogy |
