Alum Shale Sweden Beneficiation

Stop exploration and mining of alum shale in Sweden

With this petition we want to stop the plans for mining in alum shale in Oviken and achieve a change to the mineral law to give municipalities the opportunity to exercise a veto right as part of the permit process regarding all forms of exploration processing and extraction from alum shale

Get Price
Silverfallet Platåbergens Geopark

Alum shale is a black clay shale created in an oxygen deficient sea where remains of dead plants and animals were deposited on the seafloor The organic material has not decomposed but has been stored in the shale and due to high pressure and heat it has been transformed into oil Thus alum shale can be used as fuel for the lime kilns The most useful lime to burn in the kilns is

Get Price
Leukemia in Childhood and Adolescence and Exposure to

Uranium Containing Alum Shale Concrete o Olav Axelson 1 Mats Fredrikson 1 Gustav Akerblom2 and Lennart Hardell3 Abstract Concerns in Sweden about indoor radon around 1980 prompted measurements of gamma radiation from the facades of houses to identify those constructed of uranium containing alum shale concrete with potentially high radon concentrations To evaluate any possible

Get Price
ALUM SHALE BITUMEN MATURATION AND MIGRATION IMPLICATIONS

Thermal maturation of Swedish Alum Shale kerogen and bitumen has been determined from core samples from Eastern and Central Sweden In samples from Eastern Sweden Öland and Gotland the kerogen and bitumen are thermally immature with respect to petroleum generation

Get Price
Environmental impact from an alum shale deposit Kvarntorp

Key Wordsalum shale trace metals kerogene temperature Introduction During the second World War WW2 there was a fuel shortage in sweden and it was decided to pro duce oil through pyrolysis of alum shale in kvarntorp kumla the alum shale contains approxi mately 20% kerogene organic matter and 12% pyrite Prior to pyrolysis the alum shale was crushed and the finer fraction below 5 mm

Get Price
Kallsedet Uranium Project Mining Technology Mining

Alum shales are known to host the largest depositories of uranium in the world The unit of alum shale found at Kallsedet is geologically identical to that found at the Haggan project The Cambrian aged alum shale at Kallsedet ranges in thickness across the deposit area It is a fine grained carbon rich black shale unit with no calcite

Get Price
Generation and origin of natural gas in Lower Palaeozoic

ernmost Sweden Pool et al 2021 have demonstrated that the Lower Palaeozoic shale succession contains gas also in these areas Fig 1 In Denmark and Skåne the average gas content is 30 ft3 gas per ton of rock in the organic rich Alum Shale Formation Pool et al 2021; Ferrand et al C4 1 2021 The equivalent shale formation in northern

Get Price
˘ ˇ ˆ˙˝ CORE

Dworatzek 1987; for a review of the Alum Shale Formation of Sweden see Bergström & Gee 1985 These thick black shales possibly were deposited across a broad poorly oxy genated sediment starved and sulphur rich epicontinental sea of shallow depth Thickpenny 1984 1987; Buchardt et al 1997; Schovsbo 2021 2021 These deposits are rich in macro and microfossils of various affinities The

Get Price
Christopher Castellani Universität Ulm

The late Cambrian Furongian Alum Shale Formation of Sweden is famous for its diverse macrofauna mostly trilobites and brachiopods and microfauna Orsten fauna Until now no remains of sponges were known from the Alum Shale biota We report here the presence of numerous isolated sponge spicules from several limestone nodules found across the late Cambrian Alum Shale Formation The

Get Price
A rock with many perspectives

A rock with many perspectives The Alum Shale here an example of a coastal deposit consists of quartz and potassium Feldspar clasts as well as

Get Price
THE UPPER CAMBRIAN TRILOBITE OLENUS AT ANDRARUM SWEDEN

Alum Shale at Andrarum south east Scania Sweden have been analysed with the aim of re examining the classical study of iterative evolution by Kaufmann 1933a New material comprising 647 pygidia was collected for a restudy of Olenus and for comparison the skeletal development of 918 cephala and 568 pygidia from the associated Homagnos tus obesus were included The re examination shows

Get Price
Trilobites and bradoriid arthropods from the Middle and

Middle and basal Upper Cambrian strata are well exposed in an old quarry at Gudhem in the Falbygden area of Västergötland south central Sweden The exposures consist of finely laminated alum shale with scattered stinkstone orsten lenses up to m in diameter Four sections have been measured and sampled in order to establish the succession of trilobite species

Get Price
Identification of major point sources in the severely

Identification of major point sources in the severely contaminated alum shale area in Kvarntorp Sweden Åhlgren Kristina Örebro University School of Science and Technology Man Technology Environment Research Centre ORCID iD 0000 0002 7680 1117 Bäckström Mattias

Get Price
Microspherules from the lowermost Ordovician in Scania

Alum Shale Formation Södra Sandby southern Sweden Microspherules from the lowermost Ordovician in Scania Sweden affinity and taphonomy JAN ULMIUS Ulmius J 2021 Microspherules from the lowermost Ordovician in Scania Sweden affinity and taphonomy Bachelor thesis in geology at Lund University no 271 21 pp 15 ECTS credits Keywords Ordovician microfossil embryo pyrite

Get Price
Uranium SGU

The dark alum shales are the youngest deposits and also those that contain the largest total amounts of uranium in Sweden They occur in large numbers in the peripheral areas of the mountain range Skåne Billingen in Västergötland Östergötland Närke and on Öland The alum shales were formed on the seabed during Cambrian times ie about 500 million years ago

Get Price
Reasonable proposals in the investigation on alum shale

In Sweden there has been no extraction from alum shale for many years which means that the techniques then used for mining and disposal of residual products are outdated and that they would probably not keep pace with today s requirements for the environment and resource efficiency Here however the inquiry s proposal is well adapted as the applicant for a processing concession

Get Price
Estimating Release of Trace Elements from an Area with

Abstract Alum shale was mined for oil and uranium production in Kvarntorp Sweden 1942 1966 Remnants such as pit lakes exposed shale and a 100 meter high waste deposit with a hot interior a ect the surrounding environment with elevated

Get Price
ALUM SHALE BITUMEN MATURATION AND MIGRATION IMPLICATIONS

This suggests that bitumen from a mature source‐rock has migrated into the Alum Shales of Central Sweden Migration in Central Sweden is further evidenced by the occurrence of obviously‐migrated bituments in vugs and voids in the organicpoor Ordovician limestone overlying the Alum Shale in Central Sweden and in concretions within the Alum Shale itself Based on biomarker distributions of

Get Price
EXPOSURE TO WORKERS IN SWEDISH QUARRYING

burnt alum shale at Latorp in Närke in the southern part of central Sweden During the 19th century this alum shale was quarried for the production of alum K Al SO 4 2 In this production the alum shale was burnt using the high kerogen concentration in the shale The burnt shale has an orange red colour It is used as a hard top dressing

Get Price
Leaching of U V Ni and Mo from Alum Shale Waste as a

Alum shale in the Kvarntorp area Sweden ˛ gure 1 was used for oil production dur ing 1942 1966 ˜ ere is still untouched alum shale in the area as well as remains from the production in the form of both burned shale shale ash and crushed but otherwise unpro cessed shale ˛ nes ˜ e shale contains pyrite and forms acid rock drainage ARD It is of interest to increase the knowledge

Get Price
Stratigraphic results of the borings through the Alum

The regional investigations of the alum shales of Sweden comme n­ ced in 19 39 and carried out by the Geological Survey in ca operationThe youngest alum shale strata of the core were crowded with Feltum scarabaeaides and did not yield any other species Between these and the strata with Parabalina megalaps accessible in the canal there is consequently a small gap which in the complete

Get Price
Mattias Bäckström Institutionen för naturvetenskap och

Identification of major point sources in the severely contaminated alum shale area in Kvarntorp Sweden I Drebenstedt C & Paul M Mining Meets Water Conflicts and Solutions IMWA 2021 in Leipzig Germany July 11 15 2021

Get Price
ON THE SULPHIDES OF THE ALUM SHALE IN OSLO

in Sweden Here the alum shale is completely undisturbed by the Caledonian folding in the most places SAMMENDRAG Alunskiferutvalget i Oslo utgav i mai 1953 en mangfoldiggjort rapport < Her redegjøres for hva som etter krigen er gjort av undersøkelser over alunskiferens farlige egenskaper for bygninger Rapporten inneholder også en fore­

Get Price
Pyritization History in the Late Cambrian Alum Shale

Detailed diagenetic studies of the late Cambrian Alum Shale in southern Sweden were undertaken across an interval that includes the peak Steptoean Positive Carbon Isotope Excursion SPICE event to evaluate the pyrite mineralization history in the formation

Get Price
Historic mortars with burned alum shale as an artificial

77 Historic mortars with burned alum shale as an artificial pozzolan Sölve Johansson1 and Jan Erik Lindqvist2 1 Byggkonsult Sölve Johansson AB Sweden solve 2 Swedish Cement and Concrete Research Institute Sweden Abstract From the mid 18th century extensive research in Sweden and in present day Finland focused on the development of mortars

Get Price
Rare Earth Elements in the Swedish Alum Shale Formation A

Rare Earth Elements in the Swedish Alum Shale Formation A Study of Apatites in Fetsjön Västerbotten Fredrik Engström The Caledonian alum shales of Sweden host a vast number of economically interesting metals In Fetsjön Västerbotten the shales contain significant amounts of rare earth elements vanadium molybdenum and uranium

Get Price
Neutralisation of an acidic pit lake by alkaline waste

Author information 1 Man Technology Environment Research Centre Örebro University 70182 Örebro Sweden A former open pit where black shale alum shale was excavated during 1942 1965 has been water filled since 1966 The water chemistry was dominated by calcium and sulphate and had a pH of until 1997 1998 when pH was gradually increasing This was due to

Get Price
Pyritization history in the late Cambrian Alum Shale

Detailed diagenetic studies of the late Cambrian Alum Shale in southern Sweden were undertaken across an interval that includes the peak Steptoean Positive Carbon Isotope Excursion SPICE event to evaluate the pyrite mineralization history in the formation Samples were collected from the Andrarum 3 core Scania Sweden ; here the Alum was deposited in the distal siliciclastic

Get Price
Comparison of organic geochemistry and metal enrichment in

Comparison of organic geochemistry and metal enrichment in two black shales Cambrian Alum Shale of Sweden and Devonian Chattanooga Shale of United States Series title Mineralium Deposita DOI /BF00195256 Volume 26 Issue 2

Get Price
Stop exploration and mining of alum shale in Sweden

Stop exploration and mining of alum shale in Sweden Share on Facebook 3357 Petition; Signatures 2 653; Comments ; Statistics; Extra Visibility; Oviksbygden mot brytning is a politically and religiously unrelated initiative that wants to create the conditions for municipalities to be able to decide on their natural resources themselves without risking being reviewed or

Get Price