Relationship between platinum-bearing ultramafic-mafic intrusions and large igneous provinces (exemplified by the Siberian Craton)
(2016) In Russian Geology and Geophysics 57(5). p.822-833- Abstract
This study aims at summarizing available geological and geochemical data on known Proterozoic platinum-bearing ultramafic-mafic massifs in the south of Siberia. Considering new data on geochemistry and geochronology of some intrusions, it was feasible to compare ore-bearing complexes of different time spans and areas and to follow their relationships with the recognized large igneous provinces. In the south of Siberia, the platinum-bearing massifs might be united into three age groups: Late Paleoproterozoic (e.g., Chiney complex, Malozadoisky massif), Late Mesoproterozoic (e.g., Srednecheremshansky massif), and Neoproterozoic (e.g., Kingash complex, Yoko-Dovyren massif, and massifs in the center of the East Sayan Mts.). In most massifs... (More)
This study aims at summarizing available geological and geochemical data on known Proterozoic platinum-bearing ultramafic-mafic massifs in the south of Siberia. Considering new data on geochemistry and geochronology of some intrusions, it was feasible to compare ore-bearing complexes of different time spans and areas and to follow their relationships with the recognized large igneous provinces. In the south of Siberia, the platinum-bearing massifs might be united into three age groups: Late Paleoproterozoic (e.g., Chiney complex, Malozadoisky massif), Late Mesoproterozoic (e.g., Srednecheremshansky massif), and Neoproterozoic (e.g., Kingash complex, Yoko-Dovyren massif, and massifs in the center of the East Sayan Mts.). In most massifs but Chiney the initial magmas are magnesium-rich. On paleogeodynamic reconstructions, the position of the studied massifs is the evidence that three most precisely dated events in North Canada continued into southern Siberia: In the period 1880-1865 Ma, it was the Ghost-Mara River-Morel LIP; at 1270-1260 Ma, the Mackenzie LIP; and at 725-720 Ma, Franklin LIP. In Siberia, the mostly productive massifs with respect to PGE-Ni-Cu mineralization are those linked with the Franklin LIP: Verkhny Kingash, Yoko-Dovyren, and central part of the Eastern Sayan Mountains, e.g., Tartay, Zhelos, and Tokty-Oy.
(Less)
- author
- Mekhonoshin, A. S. ; Ernst, R. ; Soderlund, U. LU ; Hamilton, Michael A. ; Kolotilina, T. B. ; Izokh, A. E. ; Polyakov, G. V. and Tolstykh, N. D.
- organization
- publishing date
- 2016-05-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Large igneous provinces, Mafic-ultramafic intrusions, PGE-Ni-Cu deposits
- in
- Russian Geology and Geophysics
- volume
- 57
- issue
- 5
- pages
- 12 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:84969776630
- wos:000377370700014
- ISSN
- 1068-7971
- DOI
- 10.1016/j.rgg.2015.09.020
- language
- English
- LU publication?
- yes
- id
- 5f023752-e265-479b-90e0-caf7309ad8cb
- date added to LUP
- 2017-02-03 08:57:27
- date last changed
- 2024-02-03 09:44:38
@article{5f023752-e265-479b-90e0-caf7309ad8cb,
abstract = {{<p>This study aims at summarizing available geological and geochemical data on known Proterozoic platinum-bearing ultramafic-mafic massifs in the south of Siberia. Considering new data on geochemistry and geochronology of some intrusions, it was feasible to compare ore-bearing complexes of different time spans and areas and to follow their relationships with the recognized large igneous provinces. In the south of Siberia, the platinum-bearing massifs might be united into three age groups: Late Paleoproterozoic (e.g., Chiney complex, Malozadoisky massif), Late Mesoproterozoic (e.g., Srednecheremshansky massif), and Neoproterozoic (e.g., Kingash complex, Yoko-Dovyren massif, and massifs in the center of the East Sayan Mts.). In most massifs but Chiney the initial magmas are magnesium-rich. On paleogeodynamic reconstructions, the position of the studied massifs is the evidence that three most precisely dated events in North Canada continued into southern Siberia: In the period 1880-1865 Ma, it was the Ghost-Mara River-Morel LIP; at 1270-1260 Ma, the Mackenzie LIP; and at 725-720 Ma, Franklin LIP. In Siberia, the mostly productive massifs with respect to PGE-Ni-Cu mineralization are those linked with the Franklin LIP: Verkhny Kingash, Yoko-Dovyren, and central part of the Eastern Sayan Mountains, e.g., Tartay, Zhelos, and Tokty-Oy.</p>}},
author = {{Mekhonoshin, A. S. and Ernst, R. and Soderlund, U. and Hamilton, Michael A. and Kolotilina, T. B. and Izokh, A. E. and Polyakov, G. V. and Tolstykh, N. D.}},
issn = {{1068-7971}},
keywords = {{Large igneous provinces; Mafic-ultramafic intrusions; PGE-Ni-Cu deposits}},
language = {{eng}},
month = {{05}},
number = {{5}},
pages = {{822--833}},
publisher = {{Elsevier}},
series = {{Russian Geology and Geophysics}},
title = {{Relationship between platinum-bearing ultramafic-mafic intrusions and large igneous provinces (exemplified by the Siberian Craton)}},
url = {{http://dx.doi.org/10.1016/j.rgg.2015.09.020}},
doi = {{10.1016/j.rgg.2015.09.020}},
volume = {{57}},
year = {{2016}},
}