3 edition of Origin of the iron ores at Kiruna. found in the catalog.
|Series||Vetenskapliga och praktiska undersökningar i Lappland -- 5|
|LC Classifications||QE381 F5 D35|
|The Physical Object|
|Number of Pages||31|
Troll et al. NCOMMSB 3 63 Paleozoic apatite-iron oxide ores in Turkey, Iran, and China, and Triassic examples from Korea 10– 64 13, apatite-iron oxide ores have repeatedly formed across the globe and throughout geological time. 65 The origin of the Kiruna-type apatite-iron-oxide ores remains ambiguous, however, despite a 66 long history of study and a concurrently intense scientific et al. NCOMMSpdf. A number of iron deposits near Kiruna in the Norrbotten region of northern Sweden are of the iron oxide apatite (IOA) type of deposits; also referred to as Kiruna-type deposits. They are commonly considered a subgroup or end-member of iron oxide copper gold (IOCG) deposits, containing no economic grades of copper or gold. Both IOCG and IOA deposits are characterized by abundant low-Ti Fe
Natl Security Stra Us 1992/93
Calming the fearful mind
The peopling of Europe
Freshwater and diadromous fishes of New Zealand
The poky little puppy
Human anatomy and physiology
Last Gasps (Thrillogy; 3 Horror Stories)
Trademark manual of examining procedure (TMEP).
The preposterous adventures of Swimmer.
Recent Advances in Cell Biology of Acute Leukemia
Care for a pet hamster
Lawns and playing fields
Conways encyclopedia of flower arrangement
Additional Physical Format: Online version: Daly, Reginald Aldworth, Origin of the iron ores at Kiruna. Stockholm: Nordiska Bokhandeln, Origin of the iron ores at Kiruna by Reginald Aldworth Daly; 2 editions; First published in ; Subjects: Iron ores, Geology; Places: Sweden, Kiruna Excerpt from Origin of the Iron Ores at Kiruna On the 'east side, the syenite passes with rapid transitions into the second phase, a syenite porphyry.
Chemically the two phases are nearly identical; they are separated on the basis of difference in-texture. The phenocrysts of the porphyry are perthitic feldspars ranging from I › Books › Science & Math › Earth Sciences.
COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A 91D/abstract.
Origin of the iron ores at Kiruna by Daly, Reginald Aldworth, Publication date Origin of the iron ores at Kiruna. book Topics Iron ores -- Finland Kiruna, Mineralogy -- Finland Kiruna Publisher Stockholm Nordiska Bokhandeln Collection gerstein; toronto Digitizing sponsor MSN Contributor Gerstein - On the magmatic origin of iron ores of the Kiruna type; discussion Tibor Parak.
Tibor Parak LKAB Prospect., Stockholm, Sweden sulfides in the iron deposits, and the type and origin of ores at Kiruna Related Book :// /On-the-magmatic-origin-of-iron-ores-of-the-Kiruna. Den här titeln finns inte längre kvar på biblioteket. Origin of Origin of the iron ores at Kiruna.
book iron ores at Kiruna. av Reginald A. Daly (Bok)Engelska, För vuxna Full text of "Origin of the iron ores at Kiruna" See other formats Daly, Reginald Aldvorth Origin of the iron ores at Kiruna ^ ^ ' / VETENSKAPLIGA OCH PRAKTISKA UNDERSOKNINGAR I LAPPLAND ANORDNADE AF LOUSSAVAARA— KIIRUNAVAARA AKTIEBOLAG GEOLOGY OF THE KIRUNA DISTRICT ORIGIN OF THE IRON ORES AT KIRUNA NOV Vx )) ^"^ l^fe^av OF TOBS§^ Iron ores of the Kiruna type are unusual formations restricted both in time and space.
They are principally Origin of the iron ores at Kiruna. book in the Precambrian of Sweden and Missouri. The purpose of the present paper is Origin of the iron ores at Kiruna. book summarize the features that characterize the ores and to discuss Origin of the iron ores at Kiruna.
book :// /On-the-magmatic-origin-of-iron-ores-of-the-Kiruna. The origin of giant apatite-iron oxide ores of the so-called ‘Kiruna-type’ has been the topic of a long standing debate that has lasted for over years.
In a new article, published in Nature Communications, a team of scientists presents new and unambiguous data in favour of a magmatic origin for these important iron ores. The study was led by researchers from Uppsala University in ://?id=&typ=artikel.
The present author believes that a prerequisite condition for apatite banding in Kiruna-type ores would be a large-scale regional enrichment of phosphorus, and not injection of apatite magma in the ores.A possible source of the iron as well as the sulfides in the Kiruna-type deposits of northern Sweden is the spilitic greenstone in the :// Iron is the most important metal for modern industry and Sweden is by far the largest iron-producer in Europe, yet the genesis of Sweden's main iron-source, the ‘Kiruna-type’ apatite-iron Origin of the iron ores at Kiruna by Reginald A.
Daly （Scientific and practical researches in Lapland arranged by Luossavaara-Kiirunavaara Aktiebolag） Nordiska Bokhandeln, The Kiruna District is the type locality for Kiruna-type iron oxide-apatite deposits (Vogt, ; Geijer, ; Smith et al., ).
While sharing many similarities with iron oxide copper gold (IOCG) deposits, Kiruna-type ores are recognised as a distinct, but possibly related, type (Williams et al., ).+Geology+and+Mining+Operations+of+the.
Magmatic Origin of Giant ‘Kiruna-Type’ Apatite-Iron- Oxide Ores in Central Sweden Article (PDF Available) in Scientific Reports 3() April with 1, Reads How we measure 'reads''Kiruna. The origin of giant apatite-iron oxide ores of the so-called ‘Kiruna-type’ has been the topic of a long standing debate that has lasted for over years.
In a new article, published in Nature Communications, a team of scientists presents new and unambiguous data in favour of a magmatic origin for these important iron The origin of so-called Kiruna-type apatite-iron oxide ores has been the topic of a longstanding debate for over years.
In a new article published in Nature Communications, a team of The origin of giant apatite-iron oxide ores of the so-called 'Kiruna-type' has been the topic of a long standing debate that has lasted for over years. In a new article, scientists present new Presence of columnar magnetite in an iron ore is suggested to be diagnostic of a magmatic origin.
Platy magnetite, another dendritic form widespread at Kiruna, also occurs at El Laco. Moreover, many ores of the three provinces contain pyroxene or pseudomorphs after it with dendritic :// /Magmatic-features-of-iron-ores-of-the-Kiruna-type.
Iron Ore: Mineralogy, Processing and Environmental Issues. summarizes recent, key research on the characterization of iron ores, including important topics such as beneficiation (separation and refining), agglomeration (e.g., production of pellets or powders), blast furnace technology for smelting, and environmental issues relating to its :// PHOSPHORUS IN DIFFERENT TYPES OF ORE, SULFIDES IN THE IRON DEPOSITS, AND THE TYPE AND ORIGIN OF ORES AT KIRUNA [Tibor Parak] on The origin of giant apatite-iron oxide ores of the so-called ‘Kiruna-type’ has been the topic of a long standing debate that has lasted for over years.
In a new article, published in Nature Communications, a team of scientists presents new and unambiguous data in favour of a magmatic origin for these important iron ores.
The study was led by researchers from Uppsala University in ://?id=&typ=pm. Origin of the iron ores at Kiruna av Reginald Aldworth Daly häftad,Engelska, ISBN Från kr. häftad kr. häftad kr.
Visa alla format Kiruna Reisetagebuch: Winterurlaub in Kiruna. Ideal für Skiurlaub, Winterurlaub oder Schneeurlaub. ?q=kiruna. The origin of giant apatite-iron oxide ores of the so-called 'Kiruna-type' has been the topic of a long standing debate that has lasted for over years. In a new article, published in Nature The origin of giant apatite-iron oxide ores of the so-called 'Kiruna-type' has been the topic of a long standing debate The magnetite-apatite iron ores at Kiruna are hosted in a suite of alkaline volcanic and subvolcanic rocks that was formed in a short time interval of about 20 m.y.
between and Ma. U-Pb dating of titanite from magnetite-titanite dikes in the footwall of the Luossavaara orebody indicates that the age of the magnetite-apatite ores is ///Geochronology-of-the-Kiruna-iron-ores-and.
The magnetite-apatite deposits of Hamadan and Gole Gohar situated in the Sanandaj-Sirjan zone of Iran about km apart, show striking mineralogical and textural similarities. The orebodies are of magmatic origin and have intruded as ore magmas. The magnetite-apatite deposits are associated with ultramafic, calcalkaline and other rocks with a strong carbonate enrichment (magnesite, dolomite The origin of the Proterozoic Choghart iron oxide deposit in the Bafq mining district of Central Iran has been the subject of a long-standing dispute.
Some authors believe that it was formed from magma, while others suggest metasomatic replacement of preexisting rocks. The present study on the basis of new oxygen isotope, REE and geochemical data concludes that neither of these two hypotheses Iron oxide-apatite (IOA) deposits have served as an important source of iron in northern New York from the early s to recent times .
The IOA ores of the Kiruna-Malmberget and Bergslagen ore provinces in Sweden to which they are often compared are the major source of iron The origin of giant Kiruna-type iron ores has been debated for nearly years.
This study employs extensive stable isotope data from Kiruna-type ores worldwide and Origin of the Iron Ores at Kiruna av Reginald Aldworth Daly inbunden,Engelska, ISBN inbunden kr. Visa alla format Lappland I Kiruna kyrka av Fredric Bedoire häftad,Svenska, ISBN häftad ?q=kiruna&pn=2.
Magmatic features of iron ores of the Kiruna type in Chile and Sweden; ore textures and magnetite geochemistry; reply Article (PDF Available) in Economic Geology 89(4) July with Interpretation of the mineralizing environment of magnetite-apatite deposits remains controversial with theories that include a hydrothermal or magmatic origin or a combination of those two processes.
To address this controversy, we have analyzed the trace element content of magnetite from precisely known geographic locations and geologic environments from the Precambrian magnetite The origin of the Kiruna-type apatite-iron-oxide ores remains ambiguous, however, despite a long history of study and a con- currently intense scienti ﬁ c :// New research supports volcanic origin of Kiruna-type iron ores.
The origin of so-called Kiruna-type apatite-iron oxide ores has been the topic of a longstanding debate for over ://+origin. The iron ores of Kiruna type: geographical distribution, geological characters, and origin, Ser. C (), 39 p (Sveriges geologiska undersökning) Jan P Geijer New research supports volcanic origin of Kiruna-type iron ores 12 April Credit: CC0 Public Domain The origin of so-called Kiruna-type apatite-iron Genesis of iron-apatite ores in Posht-e-Badam Block (Central Iran) using REE geochemistry Mir Ali Asghar Mokhtari1,∗, Ghader Hossein Zadeh2 and Mohamad Hashem Emami3 1Faculty of Science, University of Zanjan, Zanjan, Islamic Republic of Iran.
2Faculty of Science, University of Tabriz, Tabriz, Iran. 3Geoscience Research Centre, Geological Survey of Iran, Tehran, :// The Mag-1 is more than twice richer in Mg than the porphyry and Kiruna type iron ores.
A slight enrichment in Al, Ti and V because of spinel and ilmenite inclusions may have caused the earliest Mag-1 to resemble the porphyry type ores, while the secondary Mag-2 has Al, Ca and Mn contents as low as the Kiruna type. Pdf isotope composition of magnetite in iron ores of the Kiruna type in Chile and Sweden Article (PDF Available) in Gff -Uppsala- (4) December with Reads How we measure 'reads'The data allowed modeling to simulate a possible origin by different magmas or hydrothermal fluids as well as a possible temperature of formation.
In addition, the data set was compared to published oxygen isotope analyses of the possible magmatic iron ores of Kiruna and El ://Phosphorus in Different Types of Ore, Sulfides in the Iron Deposits, ebook the Type and Origin of Ores at Ebook.
By. Abstract. In the Kiruna-type iron ores, apatite has been regarded as the most conspicuous mineral. Advocates of the magmatic-intrusive mode of ore emplacement at Kiruna have argued that the apatite crystallized from a parent ore