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Nautanen Diorite

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(a) Hand specimen image of the <b>Nautanen</b> <b>diorite</b>. (b) Zircon images. 1, CL i...
Published: 27 April 2017
Figure 8. (a) Hand specimen image of the Nautanen diorite. (b) Zircon images. 1, CL image showing at least two secondary features, with a homogenous dark core that has been affected by later fluids forming channels within the crystals. A late overgrowth rims parts of the grain, as well
Image
Ion-microprobe U–Th–Pb data for zircons from <b>Nautanen</b> <b>diorite</b>. Data in grey...
Published: 27 April 2017
Table 8. Ion-microprobe U–Th–Pb data for zircons from Nautanen diorite. Data in grey shading omitted from age calculations. Acronyms in column 2 and footnotes as for Table 1 .     Concentration       Radiogenic (corrected) Calculated         (ppm)       ratio 3 age
Journal Article
Published: 27 April 2017
Geological Magazine (2018) 155 (6): 1351–1376.
...Figure 8. (a) Hand specimen image of the Nautanen diorite. (b) Zircon images. 1, CL image showing at least two secondary features, with a homogenous dark core that has been affected by later fluids forming channels within the crystals. A late overgrowth rims parts of the grain, as well...
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Journal Article
Journal: Economic Geology
Published: 23 September 2021
Economic Geology (2021)
... (zircon U-Pb SIMS) for a weakly foliated diorite in the Nautanen area ( Sarlus et al., 2017 ). To the west of Aitik, Sarlus et al. ( 2017 ) also obtained an age of 1883 ± 5 Ma (zircon U-Pb SIMS) for a gabbroic unit forming part of a larger ultramafic-mafic intrusive complex. Crystallization ages (zircon U...
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Series: Society of Economic Geologists Guidebook Series, Society of Economic Geologists Guidebook Series
Published: 01 January 2000
DOI: 10.5382/GB.33
EISBN: 9781934969861
... at Nau-tanen and within a few years a number of Cu mineralizations had been found northeast and east of Gällivare. The Nautanen Copper Ore company was founded in 1900 and mining started in 1902 but lasted only until 1907 ( Geijer, 1918 ). Some other small Cu mines (Likavaara, Ferrum) were active during...
FIGURES
Series: Society of Economic Geologists Guidebook Series, Society of Economic Geologists Guidebook Series
Published: 01 January 2000
DOI: 10.5382/GB.33
EISBN: 9781934969861
... content of magnetite and locally apatite in the northwestern part of the Nautanen Deformation zone indicates a possible genetic relation to the nearby apatite iron ores at Malmberget. At Jårbojoki Södra a weak dissemination of pyrite and chalcopyrite are locally found in the porphyritic diorite...
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Journal Article
Journal: Economic Geology
Published: 01 December 2021
Economic Geology (2021) 116 (8): 1981–2009.
... Paleoproterozoic metasupracrustal belts. Modified after Andersson et al. ( 2020 ). Study area indicated by the black mark. Red box in the inset map shows the approximate outline of the geologic map. KNDZ = Kiruna-Naimakka deformation zone, NDZ = Nautanen deformation zone, PSZ = Pajala shear zone. Several...
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Series: Geological Society, London, Memoirs
Published: 03 January 2020
DOI: 10.1144/M50-2016-29
EISBN: 9781786204707
..., base metal sulphide deposits hosted by the rocks in the greenstone groups (e.g. Viscaria); and epigenetic, intrusion-related or shear- and vein-style Cu–Au (e.g. Aitik, Nautanen, Pahtohavare) and Au deposits. More significant occurrences of industrial minerals include apatite, dolomite, graphite...
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Series: Geological Society, London, Memoirs
Published: 03 January 2020
DOI: 10.1144/M50-2016-29
EISBN: 9781786204707
...) deposits; stratabound–stratiform, base metal sulphide deposits hosted by the rocks in the greenstone groups (e.g. Viscaria); and epigenetic, intrusion-related or shear- and vein-style Cu–Au (e.g. Aitik, Nautanen, Pahtohavare) and Au deposits. More significant occurrences of industrial minerals include...
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Journal Article
Journal: SEG Discovery
Published: 01 July 1996
SEG Discovery (1996) (26): 1–44.
Series: Society of Economic Geologists Guidebook Series, Society of Economic Geologists Guidebook Series
Published: 01 January 2000
DOI: 10.5382/GB.33
EISBN: 9781934969861
... by the north-northeast–oriented Karesuando-Arjeplog deformation zone, the north– to north-northeast–directed Pajala shear zone and the north-northwest–directed Nautanen deformation zone. These major shear zones were active at c. 1.8 Ga. In general the shear zones in the western part show a western-side-up...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP453.4
EISBN: 9781786203342
... using the Stratigraphic Sequence function ( Fig. 8b ). Discontinuous metatuff lenses in this stratigraphy were modelled as veins. The diorite, discordant breccia and dolerite lithologies were modelled in that order as intrusions cross-cutting the stratigraphy. Extensive shearing and metasomatism...
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