The Os and Nd isotopic systematics of c. 2.44 Ga Akanvaara and Koitelainen mafic layered intrusions in northern Finland

Precambrian Research

Volumn 109, Issue 1-2, 2001, Pages 73-102

  Hanski, E ^a   Walker, R J ^b   Huhma, H ^a   Suominen, I ^c  

^a GEOLOGICAL SURVEY OF FINLAND   (Finland)

^b Bldg 142   (United States)

^c UNIVERSITY OF HELSINKI   (Finland)

Author keywords

Chronology; Finland; Layered intrusions; Paleoproterozoic; Re Os; Sm Nd

Indexed keywords

ISOTOPE; NEODYMIUM; OSMIUM;

EMPLACEMENT; MAFIC ROCK; MAGMATISM; NEODYMIUM ISOTOPE; OSMIUM ISOTOPE; PROTEROZOIC;

AGE DETERMINATION; ARTICLE; CHEMICAL ANALYSIS; CHRONOLOGY; FINLAND; GEOLOGY; HYPOTHESIS; MEASUREMENT; ROCK; SAMPLING; TOMOGRAPHY; VOLCANO;

FINLAND;

EID: 0035874837     PISSN: 03019268     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0301-9268(01)00142-5     Document Type: Article

References (88)

1. The Koillismaa layered igneous complex, Finland: Its structure, mineralogy and geochemistry, with emphasis on the distribution of chromium
2. Early Proterozoic layered intrusions in the northeastern part of the Fennoscandian Shield
3. 187Os systematics
4. Nd and Sr isotope geochemistry of mafic layered intrusions in the eastern Baltic Shield: Implications for the sources and contamination of Paleoproterozoic continental mafic magmas
5. U-Pb geochronology of layered mafic intrusions in the eastern Baltic Shield; implications for the timing and duration of Paleoproterozoic continental rifting
6. The Mount General'skaya layered intrusion: Evidence for an enriched mantle reservoir beneath the Pechenga area, Kola Peninsula, Russia. 8th International Platinum Symposium, 28 June-3 July, 1998, Abstracts
7. The role of lithospheric mantle in continental flood volcanism; thermal and geochemical constraints
8. Mantle and crustal contributions to continental flood volcanism
9. Pb and Os isotopic constraints on the composition and rheology of the lower crust
10. Isotope data on the age and genesis of layered basic-ultrabasic intrusions in the Kola Peninsula and northern Karelia, northeastern Baltic Shield
11. The distribution of chromium among orthopyroxene, spinel and silicate liquid at atmospheric pressure
12. Role of late magmatic fluids in Merensky-type platinum deposits: A discussion
13. Geochronology of Palaeoproterozoic layered intrusions and volcanites of the Baltic Shield
14. Re-Os isotopic measurements at the femtomole level in natural samples
15. Concentration of platinum-group elements by magmatic fluids in layered intrusions
16. Os isotopes and the origin of the Tasmanian dolerites
17. Geology and isotopic dating of the early Proterozoic Sumian-Sariolian Complex in northern Karelia (Paanajärvi-Tsipringa structure)
18. Petrology of the G and H chromitite zones in the Mountain View area of the Stillwater Complex, Montana
19. Crust-mantle interaction in large igneous provinces; implications from the Re-Os isotope systematics of the Columbia River flood basalts
20. Separation of osmium from geological materials by solvent extraction for analysis by TIMS
21. Neodymium isotopes in the Colorado Front Range and crust-mantle evolution in the Proterozoic
22. Cryptic variations within chromites of the upper critical zone, northwestern Bushveld Complex
23. The Bushveld Complex
24. Weddell triple junction: The principal focus of Ferrar and Karoo magmatism during initial breakup of Gondwana
25. Long-distance transport of magmas in the Jurassic Ferrar Large Igneous Province, Antarctica
26. Layered mafic intrusions: A model for their feeder systems and relationship with giant dyke swarms and mantle plume centres
27. Re-Os isotopic evidence for genesis of Archaean nickel ores from uncontaminated komatiites
28. Mantle processes during Gondwana break-up and dispersal
29. Global mafic magmatism at 2.45 Ga: Remnants of an ancient large igneous province
30. The geochemistry of Jurassic dolerites from Portal Peak
31. The petrogenesis of Mesozoic Gondwana low-Ti flood basalts
32. Petrology of the early Proterozoic Burakovsky layered intrusion, southern Karelia, Russia; mineral and wholerock major-element chemistry
33. Osmium and neodymium isotopic constraints on the temporal and spatial evolution of Siberian flood basalt sources
34. Re-Os isotopic constraints on magma mixing in the Peridotite Zone of the Stillwater Complex, Montana, USA
35. Sm-Nd and Pb isotopic study of marie rocks associated with early Proterozoic continental rifting: The Peräpohja schist belt in northern Finland
36. Magma mixing and the origin of stratiform oxide ore zones in the Bushveld and Stillwater Complexes
37. Multi-chronometric ages and origin of Archaean tonalitic gneisses in Finnish Lapland: A case for long crustal residence time
38. Determination of precious metals in rocks by inductively coupled plasma mass spectrometry using nickel sulfide concentration. Comparison with other pre-treatment methods
39. Geochronology of an Archaean tonalitic gneiss dome in Northern Finland and its relation with an unusual overlying volcanic conglomerate and komatiitic greenstone
40. The origin of the Merensky cyclic unit; Sr-isotopic and mineralogical evidence for an alternative orthomagmatic model
41. The Bushveld Complex unconformity related ore deposits: An isotopic perspective
42. Re-Os and Sm-Nd isotope geochemistry of the Stillwater Complex, Montana; implications for the petrogenesis of the J-M Reef
43. Re-Os systematics of the Voisey's Bay Ni-Cu-Co magmatic sulfide system, Labrador, Canada: II. Implications for parental magma chemistry, ore genesis, and metal redistribution
44. Kittilän vihreäkivialueen geologia
45. Petrology of chromite-bearing rocks from the lowermost cyclic units in the Stillwater Complex Montana
46. Guide to the Stillwater Complex exposed in the West Fork area
47. U-Pb geochronology of the Peurasuvanto area, northern Finland
48. Re-Os isotopis systematics in chromitites from the Stillwater Complex, Montana, USA
49. The Stillwater Complex
50. Re-Os isotope and Pd/Ru variations in chromitites from the Critical Zone, Bushveld Complex, South Africa
51. Os, Sr, Nd, Pb, O isotope and trace element data from the Ferrar flood basalts, Antarctica; evidence for an enriched subcontinental lithospheric source
52. Isotopic determinations of rhenium and osmium in meteorites by using fusion, distillation, and ion-exchange separations
53. Koitelainen intrusion and Keivitsa-Satovaara Complex: Excursion guide
54. The Akanvaara and Koitelainen intrusions and the Keivitsa-Satovaara Complex: Guide to the pre-symposium field trip in Finland, 20-21 August 1996
55. Geology and ore petrology of the Akanvaara and Koitelainen mafic layered intrusions and the Keivitsa-Satovaara layered complex, northern Finland
56. U-Pb geochronology of the Koitelainen, Akanvaara and Keivitsa mafic layered intrusions and related rocks
57. Models for the concentration of PGE in layered intrusions
58. Sulfide mineralization in the Stillwater Complex and underlying rocks
59. Platinum group elements in Kostomuksha komatiites and basalts: Implications for oceanic crust recycling and core-mantle interaction
60. Petrology and geochemistry of crustally contaminated komatiitic basalts from the Vetreny Belt, southeastern Baltic Shield: Evidence for an early Proterozoic mantle plume beneath rifted Archean continental lithosphere
61. Os-isotope systematics of komatiitic basalts from the Vetreny belt, Baltic Shield: Evidence for a chondritic source of the 2.45 Ga plume
62. New stratigraphical map of central Finnish Lapland
63. A rationale for the observation that only thick ultra-mafic units are likely to yield PGE deposits of economic interest
64. 146Nd, a natural tracer: An application to oceanic basalts
65. Siliceous, high-magnesian parental magma compositions of the PGE-rich Early Paleoproterozoic layered intrusion belt of northern Finland
66. On the source of the Great Dyke layered ultramafic to mafic intrusion, Zimbabwe: A Re-Os study on chromites
67. PGE enrichment in chromitite layers and the Merensky Reef of the western Bushveld Complex; a Re-Os and Rb-Sr study
68. Platinum-group element mineralization in the critical zone of the western Bushveld Complex; I, Sulfide poor-chromitites below the UG-2
69. Re-Os isotopic compositions of Midcontinental rift system picrites: Implications for plume-lithosphere interaction and enriched mantle sources
70. Carius tube digestion for low-blank rhenium-osmium analysis
71. The Re-Os isotope system in cosmochemistry and high-temperature geochemistry
72. Re-Os ages of group IIA, IIIA, IVA, and IVB iron meteorites
73. Archean enriched mantle beneath the Baltic Shield: Rare-earth-element evidence from the Burakovsky layered intrusion, southern Karelia, Russia
74. Chemical and isotopic systematics of oceanic basalts; implications for mantle composition and processes
75. Use of geochemistry as a guide to platinum group element potential of mafic-ultramafic rocks; examples from the west Pilbara blocks and Halls Creek mobile zone, Western Australia
76. Correlation between chromite composition and PGE mineralization in the Critical Zone of the Western Bushveld Complex
77. 4He ratios frozen in uranium-free ultramafic rocks
78. Petrologic and isotope-geochemical features of PGE-bearing horizons in the Pansky Tundra layered intrusion (2.5 Ga), Fennoscandian Shield
79. The nature of the sub-continental mantle; constraints from the major-element composition of continental flood basalts
80. Chromite deposits at Zwartkop chrome mine, western Bushveld Complex
81. Platinum group element proportions in chromitites of the Bushveld complex: Implications for fractionation and magma mixing
82. Re-Os isotopic evidence for an enriched-mantle source for the Noril'sk-type, ore-bearing intrusions, Siberia
83. 187Os enriched plumes
84. 187Os isotopic heterogeneities in a mantle plume; evidence from Gorgona Island and Curaçao
85. Precise determination on Sm/Nd ratios, Sm and Nd isotopic abundances in standard solutions
86. The halogen geochemistry of the Bushveld Complex, Republic of South Africa; implications for chalcophile element distribution in the lower and critical zones
87. The Great Dyke of Zimbabwe
88. Isotopic and trace-element constraints on mantle and crustal contributions to Siberian continental flood basalts, Noril'sk area, Siberia