Abstract
Petrogeochemical and isotope-geochronological data are of paramount importance for refining the geologic correlation between weakly exposed magmatites of the Kolyvan'-Tomsk folded zone and Kuznetsk basin. We report data on dike and dike-sill basite complexes of shallow-depth genesis. According to the 40Ar/39Ar age estimates, basites in the Kuznetsk and Gorlovka basins are older than dikes free of xenogenous matter in the Tomsk magmatic area(248.95 ± 1.81- 246.2 ± 1.4, 259.1 ± 3.4, and 241.6 ± 2.7-238.0 ± 5.2 Ma, respectively) and are close in petrogeochemistry to basites of the Tashara complex in the Novosibirsk magmatic area. These data suggest the synchronous occurrence of magmatic events related to the Permo-Triassic plume activity within the West Siberian Plate, Siberian Platform, and their southern folded framing.
| Original language | English |
|---|---|
| Pages (from-to) | 289-302 |
| Number of pages | 14 |
| Journal | Geologiya i Geofizika |
| Volume | 46 |
| Issue number | 3 |
| Publication status | Published - 2005 |
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Keywords
- Ar/ Ar geochronology
- Basites
- Dikes
- Geochemistry
- Kolyvan-Tomsk folded zone
- Kuznetsk basin
- Sills
ASJC Scopus subject areas
- Earth and Planetary Sciences (miscellaneous)
Cite this
Geochemistry and geochronology of permo-triassic basites in the northwestern altai-sayan folded area. / Fedoseev, G. S.; Sotnikov, V. I.; Rikhvanov, L. P.
In: Geologiya i Geofizika, Vol. 46, No. 3, 2005, p. 289-302.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Geochemistry and geochronology of permo-triassic basites in the northwestern altai-sayan folded area
AU - Fedoseev, G. S.
AU - Sotnikov, V. I.
AU - Rikhvanov, L. P.
PY - 2005
Y1 - 2005
N2 - Petrogeochemical and isotope-geochronological data are of paramount importance for refining the geologic correlation between weakly exposed magmatites of the Kolyvan'-Tomsk folded zone and Kuznetsk basin. We report data on dike and dike-sill basite complexes of shallow-depth genesis. According to the 40Ar/39Ar age estimates, basites in the Kuznetsk and Gorlovka basins are older than dikes free of xenogenous matter in the Tomsk magmatic area(248.95 ± 1.81- 246.2 ± 1.4, 259.1 ± 3.4, and 241.6 ± 2.7-238.0 ± 5.2 Ma, respectively) and are close in petrogeochemistry to basites of the Tashara complex in the Novosibirsk magmatic area. These data suggest the synchronous occurrence of magmatic events related to the Permo-Triassic plume activity within the West Siberian Plate, Siberian Platform, and their southern folded framing.
AB - Petrogeochemical and isotope-geochronological data are of paramount importance for refining the geologic correlation between weakly exposed magmatites of the Kolyvan'-Tomsk folded zone and Kuznetsk basin. We report data on dike and dike-sill basite complexes of shallow-depth genesis. According to the 40Ar/39Ar age estimates, basites in the Kuznetsk and Gorlovka basins are older than dikes free of xenogenous matter in the Tomsk magmatic area(248.95 ± 1.81- 246.2 ± 1.4, 259.1 ± 3.4, and 241.6 ± 2.7-238.0 ± 5.2 Ma, respectively) and are close in petrogeochemistry to basites of the Tashara complex in the Novosibirsk magmatic area. These data suggest the synchronous occurrence of magmatic events related to the Permo-Triassic plume activity within the West Siberian Plate, Siberian Platform, and their southern folded framing.
KW - Ar/ Ar geochronology
KW - Basites
KW - Dikes
KW - Geochemistry
KW - Kolyvan-Tomsk folded zone
KW - Kuznetsk basin
KW - Sills
UR - http://www.scopus.com/inward/record.url?scp=33747056564&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33747056564&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:33747056564
VL - 46
SP - 289
EP - 302
JO - Geologiya i Geofizika
JF - Geologiya i Geofizika
SN - 0016-7886
IS - 3
ER -