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Wanhainen, ChristinaORCID iD iconorcid.org/0000-0003-4711-7671
Publications (10 of 55) Show all publications
Warlo, M., Wanhainen, C., Bark, G., Butcher, A., McElroy, I., Brising, D. & Rollinson, G. (2019). Automated quantitative mineralogy optimized for simultaneous detection of (precious/critical) rare metals and base metals in a production-focused environment. Minerals, 9(7), Article ID 440.
Open this publication in new window or tab >>Automated quantitative mineralogy optimized for simultaneous detection of (precious/critical) rare metals and base metals in a production-focused environment
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2019 (English)In: Minerals, ISSN 2075-163X, E-ISSN 2075-163X, Vol. 9, no 7, article id 440Article in journal (Refereed) Published
Abstract [en]

Automated Scanning Electron Microscopy (ASEM) systems are applied in the mining industry to quantify the mineralogy of the ore feed and products. With society pushing towards sustainable mining, this quantification should be comprehensive and include trace minerals since they are often either deleterious or potential by-products. Systems like QEMSCAN® offer a mode for trace mineral analysis (TMS mode); However, it is unsuitable when all phases require analysis. Here, we investigate the potential of detecting micron-sized trace minerals in fieldscan mode using the QEMSCAN® system with analytical settings in line with the mining industry. For quality comparison, analysis was performed at a mining company and a research institution. This novel approach was done in full collaboration with both parties. Results show that the resolution of trace minerals at or below the scan resolution is difficult and not always reliable due to mixed X-ray signals. However, by modification of the species identification protocol (SIP), quantification is achievable, although verification by SEM-EDS is recommended. As an add-on to routine quantitative analysis focused on major ore minerals, this method can produce quantitative data and information on mineral association for trace minerals of precious and critical metals which may be potential by-products in a mining operation

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
automated scanning electron microscopy, QEMSCAN®, trace minerals, gold
National Category
Natural Sciences Geology
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-73862 (URN)10.3390/min9070440 (DOI)000478593300032 ()
Note

Validerad;2019;Nivå 2;2019-08-28 (johcin);

Artikeln har tidigare förekommit som manuskript i avhandling.

Available from: 2019-05-07 Created: 2019-05-07 Last updated: 2019-08-28Bibliographically approved
Sarlus, Z., Martinsson, O., Bauer, T., Wanhainen, C., Andersson, J. & Nordin, R. (2019). Character and tectonic setting of plutonic rocks in the Gällivare area, northern Norrbotten, Sweden. GFF, 141(1), 1-20
Open this publication in new window or tab >>Character and tectonic setting of plutonic rocks in the Gällivare area, northern Norrbotten, Sweden
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2019 (English)In: GFF, ISSN 1103-5897, E-ISSN 2000-0863, Vol. 141, no 1, p. 1-20Article in journal (Refereed) Published
Abstract [en]

Petrographical and lithogeochemical investigations in combination with mapping in the Gällivare area, northern Norrbotten, Sweden, have led to the identification of several igneous intrusive rock types. These include: (1) ultramafic-mafic complexes, (2) mafic-intermediate rocks, (3) dolerites and (4) felsic plutons. The ultramafic-mafic rocks include the ca. 1.88 Ga Dundret complex and ca. 1.80 Ga Vassaravaara complex. The Dundret complex has tholeiitic to calc-alkaline affinity, shows a primitive mineral content and was formed in an extensional tectonic setting. The Vassaravaara complex has a similar chemical signature as the Dundret complex. The mafic-intermediate plutons vary in composition from gabbro to diorite. The chemical signature of the dioritic rocks indicate formation in a volcanic arc setting. Dolerites occur as solitary dikes and have calc-alkaline affinity. The felsic plutons include granite and syenite of ca. 1.88, 1.80 and 1.78 Ga age. The felsic plutons have calc-alkaline to shoshonitic affinity and mostly show a metaluminous I-type character. Results indicate subduction at 1.90 Ga resulting in a volcanic arc system, and including extensional events generating back-arc environments leading to mafic, intermediate and felsic magmatism in the Gällivare area. Subduction at 1.80 Ga is suggested to have caused a similar process generating mafic and felsic magmatic rocks in the same area. A subsequent collision event finally generated 1.78 Ga granitic rocks.

Place, publisher, year, edition, pages
Taylor & Francis, 2019
Keywords
Gällivare area, mafic layered intrusions, petrography, lithogeochemistry, back-arc environment
National Category
Geology
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-69190 (URN)10.1080/11035897.2018.1526209 (DOI)000467182600001 ()
Note

Validerad;2019;Nivå 2;2019-06-18 (johcin)

Available from: 2018-06-08 Created: 2018-06-08 Last updated: 2019-06-18Bibliographically approved
Warlo, M., Wanhainen, C., Martinsson, O. & Karlsson, P. (2019). Mineralogy and origin of the intrusion-related Liikavaara Cu-(W-Au) deposit, northern Sweden. GFF
Open this publication in new window or tab >>Mineralogy and origin of the intrusion-related Liikavaara Cu-(W-Au) deposit, northern Sweden
2019 (English)In: GFF, ISSN 1103-5897, E-ISSN 2000-0863Article in journal (Refereed) Submitted
Abstract [en]

The Liikavaara Cu-(W-Au) deposit is situated proximal to the Aitik Cu-Au deposit in northern Sweden. It shows occurrence of scheelite and enrichment in trace metals including Au, Ag and Bi. In this study, petrological, mineralogical and geochemical investigations of the host rocks and ore, and geochronological analysis of a footwall intrusion were carried out. The ore is hosted by a metadiabase partly metamorphosed to biotite schist. The wall rocks are composed of metavolcaniclastic rocks of andesitic to basaltic composition. A granodiorite intrusion occurs in the footwall and related aplite dikes cut the deposit. Veins of quartz (±tourmaline) and calcite are numerous. Mineralisation is bound to these veins and their distribution is controlled by the aplite dikes. Chalcopyrite, pyrrhotite and pyrite are major in abundance. Sphalerite, galena, scheelite, molybdenite and magnetite are minor. Gold occurs native and as electrum and Ag is mostly bound in hessite and acanthite. The bismuth mineralogy is diverse but native Bi, pilsenite, bismuthinite, and tetradymite are common. A single grain of Sb (breithauptite) was observed. The major and minor minerals show intergrowth and replacement textures. The trace minerals are found as inclusions, along the borders and in cracks in the major sulphides, sphalerite, molybdenite and quartz. The footwall intrusion is dated at 1.87 Ga and suggested to be the source for ore genesis. The dikes may have acted as pathways for the magmatic hydrothermal fluids that carried the ore from the intrusion to the host rock.

Keywords
trace metals, scheelite, gold, bismuth, mineralogy, U-Pb geochronology, Northern Norrbotten ore district
National Category
Natural Sciences
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-73861 (URN)
Available from: 2019-05-07 Created: 2019-05-07 Last updated: 2019-05-07
Jansson, N., Wanhainen, C., Thomas, H., Persson, M. & Sand, A. (2019). Textural and chemical characterization of sulphide minerals for improved beneficiation and exploration, Skellefte district, Sweden. In: Nelly Aroka, Lars-Ove Lång (Ed.), SGU rapport 2019:10 FoU-seminarium: . Paper presented at FoU dag vid SGU, 11 April (pp. 48). Uppsala
Open this publication in new window or tab >>Textural and chemical characterization of sulphide minerals for improved beneficiation and exploration, Skellefte district, Sweden
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2019 (English)In: SGU rapport 2019:10 FoU-seminarium / [ed] Nelly Aroka, Lars-Ove Lång, Uppsala, 2019, p. 48-Conference paper, Oral presentation with published abstract (Other academic)
Place, publisher, year, edition, pages
Uppsala: , 2019
National Category
Geology
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-74118 (URN)
Conference
FoU dag vid SGU, 11 April
Funder
The Geological Survey of Sweden (SGU)
Available from: 2019-06-01 Created: 2019-06-01 Last updated: 2019-06-01
Kampmann, T. C., Jansson, N. F., Stephens, M. B., Olin, P. H., Gilbert, S. & Wanhainen, C. (2018). Syn-tectonic sulphide remobilization and trace element redistribution at the Falun pyritic Zn-Pb-Cu-(Au-Ag) sulphide deposit, Bergslagen, Sweden. Ore Geology Reviews, 96, 48-71
Open this publication in new window or tab >>Syn-tectonic sulphide remobilization and trace element redistribution at the Falun pyritic Zn-Pb-Cu-(Au-Ag) sulphide deposit, Bergslagen, Sweden
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2018 (English)In: Ore Geology Reviews, ISSN 0169-1368, E-ISSN 1872-7360, Vol. 96, p. 48-71Article in journal (Refereed) Published
Abstract [en]

Mineralization types at the Palaeoproterozoic Falun base metal sulphide deposit are predominantly pyritic Zn-Pb-Cu-rich massive sulphide mineralization, disseminated to semi-massive Cu-Au mineralization, auriferous quartz veins, and mineralized shear zones of talc-chlorite-dominated schist. The massive and disseminated to semi-massive sulphide mineralization types were subject to polyphase ductile deformation (D1 and D2) and metamorphism under low-P, lower-amphibolite facies conditions, which led to the development of ore textures and paragenetic relationships indicating both mechanical and chemical remobilization of sulphides. In the massive sulphide mineralization, rare inclusion-rich pyrite occurs as relic cores inside inclusion-poor metamorphosed pyrite. Imaging and spot analysis using multielement laser ablation inductively-coupled plasma mass spectrometry (LA-ICP-MS) reveal that inclusion-poor pyrite was depleted in trace elements, which were originally present as non-stoichiometric lattice substitutions or in mineral inclusions. The inclusion-rich pyrite was shielded from depletion and, at least partly, retained its initially higher trace element concentrations, including Au.

Gold is also associated with chalcopyrite in the disseminated to semi-massive Cu-Au mineralization and in the system of auriferous quartz veins hosted therein, the latter being also affected by the D2 ductile strain. It is inferred that emplacement of the vein system took place after the peak of metamorphism, which occurred between D1 and D2, but prior to and possibly even shortly after completion of the D2 deformational event. Similarities in trace element signatures in chalcopyrite are compatible with the interpretation that the quartz veins formed by local chemical remobilization of components from the Cu-Au mineralization. Transport of liberated Au from pyrite during grain growth in the massive sulphide mineralization may have upgraded the Au endowment in the quartz veins, leading to the additional formation of native gold in the veins. A strong correspondence between elements liberated from pyrite (e.g. Pb, Bi, Se and Au) and those forming discrete and characteristic mineral phases in the quartz veins (Pb-Bi sulphosalts, native gold) supports this hypothesis.

Trace element signatures for the main sulphide minerals pyrite, chalcopyrite, sphalerite and galena are similar to previously published data from other metamorphosed massive sulphide deposits. The association of the Falun mineralization with elevated Bi is reflected by its occurrence in sulphide minerals (e.g. galena) and in abundant mineral inclusions of Pb-Bi sulphosalts (e.g. weibullite), especially in the disseminated to semi-massive Cu-Au mineralization. Elevated Sn concentrations in the lattice and/or as cassiterite inclusions in chalcopyrite, sphalerite and galena are compatible with a hot, acidic and reducing fluid during formation of the syn-volcanic, base metal sulphide mineralization and associated host-rock alteration.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Falun deposit, Bergslagen, Fennoscandian Shield, sulphide remobilization, LA-ICP-MS, trace elements
National Category
Geology
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-61672 (URN)10.1016/j.oregeorev.2018.04.010 (DOI)000434004700004 ()2-s2.0-85045259948 (Scopus ID)
Projects
Structural evolution, hydrothermal alteration and tectonic setting of the Falun base metal and gold deposit, Bergslagen region, Sweden
Funder
The Geological Survey of Sweden (SGU), 61-1441/2011
Note

Validerad;2018;Nivå 2;2018-04-16 (andbra)

Available from: 2017-01-27 Created: 2017-01-27 Last updated: 2018-06-28Bibliographically approved
Sarlus, Z., Andersson, U. B., Bauer, T. E., Wanhainen, C., Martinsson, O., Nordin, R. & Andersson, J. B. .. (2018). Timing of plutonism in the Gällivare area: mplications for Proterozoic crustal development in the northern Norrbotten ore district, Sweden. Geological Magazine, 155(6), 1351-1376
Open this publication in new window or tab >>Timing of plutonism in the Gällivare area: mplications for Proterozoic crustal development in the northern Norrbotten ore district, Sweden
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2018 (English)In: Geological Magazine, ISSN 0016-7568, E-ISSN 1469-5081, Vol. 155, no 6, p. 1351-1376Article in journal (Refereed) Published
Abstract [en]

Zircon ion probe (secondary-ion mass spectrometry or SIMS) data from a set of intrusive rocks emplaced in the vicinity of major ore bodies, as well as from large igneous intrusions in the Gällivare area, gave the following results: (1) the Dundret ultramafic–mafic layered complex (1883±5 Ma), the Aitik granite (1883±5 Ma), the Nautanen diorite (1870±12 Ma), the Vassaravaara ultramafic–mafic layered complex (1798±4 Ma), the Aitik dolerite (1813±9 Ma), the Bergmästergruvan and Sikträsk syenites (1795±4 Ma and 1801±3 Ma, respectively) and the Naalojärvi granite (1782±5 Ma). These data broadly fall within the ranges 1.89–1.87 Ga (early Svecofennian) and 1.80–1.78 Ga (late Svecofennian), but geochronologically allow further subdivision into pulses at 1885–1880, 1875–1870, 1800 and 1780 Ma. During these events, large layered ultramafic–mafic and felsic plutonic rocks were generated with distinct overlap in time suggesting coeval felsic–mafic magmatism. Results also indicate the presence of inherited c. 1.87 Ga zircon crystals in the plutonic rocks at 1.78 Ga, supporting reworking of the previous crust. These data indicate the importance of mantle-derived mafic underplating in the process of crustal magma generation in the region. The c. 1.88 Ga event that generated ultramafic–mafic layered complexes is tentatively suggested to have played an important role in the formation of the Aitik Cu–Au porphyry system. The later event at c. 1.80 Ga, generating voluminous mafic–felsic units, is suggested to be coupled to the regional iron-oxide-copper-gold (IOCG) overprint.

Place, publisher, year, edition, pages
Cambridge University Press, 2018
National Category
Geology
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-63390 (URN)10.1017/S0016756817000280 (DOI)000439690800008 ()2-s2.0-85018356169 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-07-26 (inah)

Available from: 2017-05-17 Created: 2017-05-17 Last updated: 2018-08-15Bibliographically approved
Yousefi, F., Sadeghian, M., Wanhainen, C., Ghasemi, H. & Frei, D. (2017). Geochemistry, petrogenesis and tectonic setting of middle Eocene hypabyssal rocks of the Torud–Ahmad Abad magmatic belt: An implication for evolution of the northern branch of Neo-Tethys Ocean in Iran. Journal of Geochemical Exploration, 178, 1-15
Open this publication in new window or tab >>Geochemistry, petrogenesis and tectonic setting of middle Eocene hypabyssal rocks of the Torud–Ahmad Abad magmatic belt: An implication for evolution of the northern branch of Neo-Tethys Ocean in Iran
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2017 (English)In: Journal of Geochemical Exploration, ISSN 0375-6742, E-ISSN 1879-1689, Vol. 178, p. 1-15Article in journal (Refereed) Published
Abstract [en]

The Torud–Ahmad Abad magmatic belt is located in the south-southeast of Shahrood (East of Semnan Province, NE Iran) and lies in the northern part of the Central Iran Structural Zone (CISZ), where a thick sequence of Paleocene to middle Eocene volcanic and volcanosedimentary rocks cropped out. This sequence was intruded by numerous dikes, hypabyssal igneous domes and one small gabbrodioritic intrusion, with compositions ranging from trachybasaltic andesite, trachyandesite, dacite, trachyte, gabbro, diorite and syenite. Various enclaves (cogentic and noncogenetic) with different composition, size and shape have been found in these domes and dikes. These enclaves are evidence of magma mixing and crustal contamination. Geochemically, the studied rocks exhibit a calc-alkaline to high potassium calc-alkaline affinity, and are enriched in LREE and LILE and depleted in HREE and HSFE. Other geochemical characteristics, such as a silica content varying between 59–63 wt% and 51–59 wt%, a Na2O content > 3 wt%, Al2O3 content > 16 wt%, Yb < 1.8 ppm, and Y < 18 ppm, make it possible to classify these rocks as high silica adakite in the Ahmad Abad region and low silica adakite in the Sahl-Razzeh region or at least, adakitic like rocks. Also, depletion of Nb and Ti, and high enrichment in Rb, Ba, K and Th, imply crustal contamination of the mentioned adakitic domes. The petrographical and geochemical evidence show that the magma forming of the high silica adakites has been originated from partial melting of the subducted oceanic slab of Neo-Tethys (Sabzevar–Darouneh branch) in amphibolite to eclogite facies and the low silica adakites formed by partial melting of the metasomatized or modified mantle wedge, above the subduction zone. Gabbroic to syenitic rocks are the products of fractional crystallization of basic magma which originated from a nearly non-modified mantle wedge above the subducted oceanic slab. U-Pb dating of the dacitic and andesitic rocks belong to hypabyssal rocks yielded age of 41.4 ± 0.3 Ma, and 35.5 ± 0.2 Ma respectively and consistent to Middle to Late Eocene.

Place, publisher, year, edition, pages
Elsevier, 2017
National Category
Geology
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-62583 (URN)10.1016/j.gexplo.2017.03.008 (DOI)000401125700001 ()2-s2.0-85016258071 (Scopus ID)
Note

Validerad; 2017; Nivå 2; 2017-03-29 (rokbeg)

Available from: 2017-03-21 Created: 2017-03-21 Last updated: 2018-09-13Bibliographically approved
Yousefi, F., Sadeghian, M., Wanhainen, C., Ghasemi, H., Lambrini, P., Bark, G., . . . Koroneos, A. (2017). Mineral chemistry and P-T conditions of the adakitic rocks from Torud–Ahmad Abad magmatic belt, S-SE Shahrood, NE Iran. Journal of Geochemical Exploration, 182(A), 110-120
Open this publication in new window or tab >>Mineral chemistry and P-T conditions of the adakitic rocks from Torud–Ahmad Abad magmatic belt, S-SE Shahrood, NE Iran
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2017 (English)In: Journal of Geochemical Exploration, ISSN 0375-6742, E-ISSN 1879-1689, Vol. 182, no A, p. 110-120Article in journal (Refereed) Published
Abstract [en]

Torud-Ahmad Abad magmatic belt is located 175 km east and southeast of Shahrood in the northern part of the Central Iran Structural Zone and includes a thick sequence of Paleocene to middle Eocene volcanic and volcanosedimentary rocks. This magmatic belt was formed by numerous hypabyssal igneous adakitic domes constituting basaltic andesite, andesite, trachyandesite, dacite, trachydacite, and dacite. The investigated rocks are mainly composed of pyroxene, amphibole, and plagioclase, with minor biotite and opaque minerals. Mineral chemical analysis reveals that plagioclase composition varies from albite to labradorite, clinopyroxene varies from diopside to augite, and amphibole varies from Mg-hastingsite to Mg-hornblende.

Amphibole geothermobarometry suggests crystallization temperatures of 850–1050 °C, at 2–6 kbar and the temperature of 920–970 °C, at a pressure of 3–4.5 kbar, which are conditions in agreement with andesite and dacite formation. Clinopyroxene crystallized at temperatures of 1020–1170 °C, at 2–10 kbar, indicating crystallization at crustal depths of maximum 30 km for the studied intrusive rocks in the Torud-Ahmad Abad magmatic belt.

Place, publisher, year, edition, pages
Elsevier, 2017
National Category
Geology
Research subject
Ore Geology
Identifiers
urn:nbn:se:ltu:diva-65725 (URN)10.1016/j.gexplo.2017.09.006 (DOI)000414886000009 ()2-s2.0-85030482210 (Scopus ID)
Note

Validerad;2017;Nivå 2;2017-10-04 (andbra)

Available from: 2017-09-19 Created: 2017-09-19 Last updated: 2018-03-15Bibliographically approved
Warlo, M., Martinsson, O., Wanhainen, C., Karlsson, P. & Höglund, S. (2017). Mineralisation paragenesis of the Liikavaara Cu-(W-Au) deposit, northern Sweden. In: Mercier Langevin, P; Dube, B; Bardoux, M; Ross, PS; Dion, C (Ed.), Mineral Resources to Discover: . Paper presented at 14th SGA Biennial Meeting on Mineral Resources to Discover, Quebec City, Canada, AUG 20-23, 2017 (pp. 971-974). Society for Geology Applied to Mineral Deposits
Open this publication in new window or tab >>Mineralisation paragenesis of the Liikavaara Cu-(W-Au) deposit, northern Sweden
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2017 (English)In: Mineral Resources to Discover / [ed] Mercier Langevin, P; Dube, B; Bardoux, M; Ross, PS; Dion, C, Society for Geology Applied to Mineral Deposits , 2017, p. 971-974Conference paper, Published paper (Refereed)
Abstract [en]

The Liikavaara Cu-(W-Au) deposit is located in the Gallivare ore district in northern Sweden, a few kilometres east of the renowned Aitik Cu-(Au) deposit. Its enrichment in Critical Raw Materials and its scheduled production for the near future make the Liikavaara deposit ideal as the subject of a case study on improved ore characterisation using various micro-analytical techniques. Here we present a general overview of the mineralogy in Liikavaara to provide a base for future micro-analytical studies. The deposit lies within Palaeoproterozoic volcanosedimentary rocks of andesitic composition. A unit of biotite schist hosts the ore. Mineralisation in Liikavaara is mainly controlled by quartz-(calcite)-(tourmaline) veins. Aplitic dykes and calcite veinlets also cut the deposit. Ore minerals are chalcopyrite, pyrrhotite, pyrite, sphalerite, galena, and molybdenite. Non-sulfide sources include scheelite and minor magnetite. The deposit is affected by alteration such as sericitisation, calcification, tourmalinisation, epidotisation, and chloritisation. The genesis of the deposit is up to today not determined and studies are few. However, the deposit's spatial proximity to a mineralised granodiorite dated at ca. 1.87 Ga offer some similarities to the Aitik deposit and its 1.89 Ga quartz monzodiorite. A primary magmatic origin with later IOCG overprint could therefore be a possibility.

Place, publisher, year, edition, pages
Society for Geology Applied to Mineral Deposits, 2017
National Category
Geology
Research subject
Ore Geology; Ore Geology
Identifiers
urn:nbn:se:ltu:diva-70289 (URN)000439764100240 ()978-2-9816898-0-1 (ISBN)
Conference
14th SGA Biennial Meeting on Mineral Resources to Discover, Quebec City, Canada, AUG 20-23, 2017
Available from: 2018-08-09 Created: 2018-08-09 Last updated: 2018-08-09Bibliographically approved
Minz, F., Bolin, N.-J., Lamberg, P., Wanhainen, C., Bachmann, K. & Gutzmer, J. (2017). Particle-based Sb distribution model for Cu–Pb flotation as part of geometallurgical modelling at the polymetallic Rockliden deposit, north-central Sweden. Transactions of the Institution of Mining and Metallurgy Section C - Mineral Processing and Extractive Metallurgy, 126(4), 212-223
Open this publication in new window or tab >>Particle-based Sb distribution model for Cu–Pb flotation as part of geometallurgical modelling at the polymetallic Rockliden deposit, north-central Sweden
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2017 (English)In: Transactions of the Institution of Mining and Metallurgy Section C - Mineral Processing and Extractive Metallurgy, ISSN 0371-9553, E-ISSN 1743-2855, Vol. 126, no 4, p. 212-223Article in journal (Refereed) Published
Abstract [en]

The polymetallic Cu–Zn ore of the Rockliden massive sulphide deposit in the Skellefte District in north-central Sweden contains a number of deleterious elements in relevant concentrations. Of particular concern is the amount of antimony (Sb) reporting to the Cu–Pb concentrate. The aim of this study was to compare different model options to simulate the distribution of Sb minerals in a laboratory flotation test based on different degrees of details in the mineralogical information of the flotation feed. Experimental data obtained from four composites were used for the modelling and simulation. The following different simulation levels were run (sorted from least to highest level of detail of their mineralogical information): chemical assays, unsized bulk mineralogy, sized bulk mineralogy and particle information. It was shown that recoveries simulated based on bulk mineralogy are mostly within the error margin acceptable in the exploration stage of the Rockliden deposit. Unexpected high deviation in the simulation using particle information from the original recovery has been partly attributed to the fact that recovery of non-liberated particles cannot be modelled appropriately in the present version of the modelling and simulation software. It is expected that the implementation of full particle information in simulation will improve the Sb distribution model for the mineralogically complex Rockliden deposit.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2017
National Category
Geology Metallurgy and Metallic Materials
Research subject
Ore Geology; Mineral Processing
Identifiers
urn:nbn:se:ltu:diva-59915 (URN)10.1080/03719553.2016.1224048 (DOI)2-s2.0-84989221066 (Scopus ID)
Note

Validerad;2017;Nivå 2;2017-09-27 (rokbeg)

Available from: 2016-10-24 Created: 2016-10-24 Last updated: 2018-07-10Bibliographically approved
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Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-4711-7671

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