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| Titel |
Plume connection of carbonatites: geodynamic Implication |
| VerfasserIn |
Liya Kogarko, Roman Veselovskiy |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250139147
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| Publikation (Nr.) |
 EGU/EGU2017-2326.pdf |
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| Zusammenfassung |
| Geodynamic position of the carbonatites is actively
discussed question during the last decades. Some researches
link their formation with ascend of the large volumes of
mantle melts from the CMB. There is certain evidence for
temporal and spatial correlation of the carbonatites and LIPs,
whose origin is certainly related with mantle plumes [1], as it
was shown for carbonatites of the Polar Siberia (Maymecha-
Kotuy province) which were formed simultiniusly with the
Siberian superplume 250 Ma [2].
We used the recent absolute plate kinematic model [2] to
reconstruct locations of Phanerozoic carbonatites at the time
of their origin (Fig. 1). We have found that 118 out of 180
carbonatites (66%) are projecting onto central or peripheral
parts of African Large Low Shear-wave Velocity Province and
this can be viewed as an evidence for linking the carbonatites
with mantle plumes.
[1] Ernst R.E. Large Igneous Provinces. Cambridge
University Press. 2014. 666 p [2]. Kogarko L., Zartman
R.(2007) Min Petrol.89,113-132 [3] Torsvik T.H. et al. (2014)
Proceedings of the National Academy of Sciences of the
United States.111 ,8735-8740. Supported by RSCF grant 15-
17-30019. |
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