— the primary ore body and phyllic zone due to presence of copper sulfides and the relatively abundant amounts of pyrite slides 11 12 and 13 •Ideally enrichment requires a sulfide assemblage that contains more pyrite than copper sulfides since pyrite is primary source for acid required for their development
WhatsApp
— Such copper oxide and sulfide deposits were discovered and evaluated by drilling done by Codelco from 1996 through 2007 during a brownfield exploration program driven by the necessity to replace and increase leacheable ore consumed by the Chuquicamata and Radomiro Tomic operations 30% of the deposits contain ed
— e Enrichment Ratio is calculated directly from assays as c/f weights are not involved in the calculation Example Calculations Problem A copper ore initially contains % Cu After carrying out a froth flotation separation the products are as shown in Table 1 Using this data calculate a Ratio of concentration b % Metal Recovery
WhatsApp
— MINERALOGICAL PROFILE OF SUPERGENE SULFIDE ORE IN THE WESTERN COPPER AREA MORENCI MINE ARIZONA supergene enrichment porphyry copper electron microprobe analysis Morenci Arizona the first zone caps 2 a zone of enrichment in which supergene sulfides replace hypogene sulfides Titley &
WhatsApp
— However it is not clear that a single copper rich magmatic fluid could trigger both copper enrichment and the subsequent precipitation of sulphide ore minerals within a zone of hydrothermally
WhatsApp
— A mineral deposit forms because of a combination of complex geologic processes and this makes it difficult to confirm effectively the presence of ore bodies below the surface Primary haloes are commonly utilized in mineral exploration as an indicator of the presence of blind ore bodies Three basic types of zoning occur in primary haloes of
WhatsApp
— Recent calculations by Castor and Henry estimate an in situ tonnage of 20 to 40 MT of Li maximum 120 MT of Li to be contained within sediments of the whole McDermitt back of the envelope estimation is calculated using caldera wide extrapolation of publicly available drill hole data from Lithium Americas Corp and
WhatsApp
— 6 An important special case of ore formation by weathering with metal transfer by meteoric seepage water is the supergene enrichment of un exploitable low grade primary mineralizations protore Many copper iron manganese and silver deposits owe an economic ore grade to supergene enrichment processes Supergene ore deposits form in
WhatsApp
— This is particularly noted in copper ore deposits where the copper sulfide minerals chalcocite Cu2S covellite CuS digenite Cu18S10 and djurleite Cu31S16 are deposited by the descending surface waters How to recognize secondary enrichment in porphyritic copper systems Sulfide ore zone a deeper zone of hypogene alteration
WhatsApp
— Supergene enrichment of Cu deposits in the Atacama Desert has played a critical role in making this the prime Cu producing province of the world Previously this has been believed to have occurred exclusively over a long period from the middle Eocene to the late Miocene which ended when climatic conditions changed from arid to hyperarid
WhatsApp
— This leaching zone is underlain by a NW trending enrichment zone that covers an area of by km that has largely been extracted by historical mining Fig 3c Northwest trending faults fractures and veins within the structural corridor combined with higher hypogene copper contents appear to have been the main controls on both the
WhatsApp
— The mechanism responsible for malachite precipitation is related to supergene enrichment in the oxidized zone Chavez 2000;Dill 2015;Reich and Vasconcelos 2015 Copper carbonates such as
WhatsApp
Geochica et Coemochtolica Acta 1954 Vol 5 pp 153 to 198 Pergunon PrLtd London Mineral species as functions of pH and oxidation reduction potentials with special reference to the zone of oxidation and secondary enrichment of sulphide ore deposits ROBEBT M GABBELS ABSTRACT Contribution from Northwestern University Received 20
WhatsApp
— The Sarcheshmeh porphyry copper deposit is situated in southern Iran at 30° N 56° E; and about 160 km southwest of Kerman city Fig 1 The deposit is within a belt of Eocene volcanic rocks and Oligo Miocene subvolcanic granitoid rocks that form part of the 2000 × 50 km central Iranian volcano plutonic copper belt Fig 1 The oldest host rocks
WhatsApp
— Historic mining of orogenic gold deposits at Macraes Barewood Nenthorn Carrick and Oturehua in the Otago Schist belt was focused on the oxidised surficial zone <50 m thick in which supergene enrichment processes had concentrated gold at least ten fold above primary concentrations of 1 10 ppm
WhatsApp
— The copper content of enrichment blankets generally ranges from Page 4 of 5 two to eight times greater than the non enriched primary sulfide mineralization to % copper Small very high grade enriched zones averaging 20% Cu were mined at Morenci during the 1880s In lower portions ofthe oxidized ore zone electrum seemsto
WhatsApp
— Such copper oxide and sulfide deposits were discovered and evaluated by drilling done by Codelco from 1996 through 2007 during a brownfield exploration program driven by the necessity to replace and increase leacheable ore consumed by the Chuquicamata and Radomiro Tomic operations 30% of the deposits contain ed
WhatsApp
— Besides the copper ore pyrite was used as fuel and garnet skarn as well as carbonate rocks as flux The Cu content of the matte was about 45 % at a monthly production rate of about 400 500 tons During the early smelting activities high quality slags were exported to Wales for further processing in exchange for Welsh coal Rees Jones
WhatsApp
6 — Methods of Enrichment Hand Picking This is a traditional method where the impure solid matrix identified by their colour is removed with the help of a hammer Hydraulic Washing In this method the ore is finely ground and washed with water The passing water washes away the impurities that are lighter than the mineral The upstream
WhatsApp
نحن نقدم للعملاء مجموعة متنوعة من معدات التكسير عالية الجودة، ومعدات صنع الرمل، والكسارات المتنقلة، ونعمل على تحسين مجموعة الأنواع المختلفة من المعدات لتلبية احتياجات العمليات المختلفة.
Copyright ©2000- 2024 | الشركة المصنعة للكسارة SHBM
