Olivine in ultramafic lamprophyres: chemistry, crystallisation, and melt sources of Siberian Pre-and post-trap aillikites

AA Nosova, LV Sazonova, AV Kargin… - … to Mineralogy and …, 2018 - Springer
We studied olivines from the Devonian pre-trap (the Ilbokich occurrence) and the Triassic
post-trap (the Chadobets occurrence) carbonate-rich ultramafic lamprophyres (UMLs) in the …

[HTML][HTML] An exotic Cretaceous kimberlite linked to metasomatized lithospheric mantle beneath the southwestern margin of the São Francisco Craton, Brazil

LDV Carvalho, T Jalowitzki, R Scholz, GO Gonçalves… - Geoscience …, 2022 - Elsevier
We present major and trace element compositions of mineral concentrates comprising
garnet xenocrysts, ilmenite, phlogopite, spinel, zircon, and uncommon minerals (titanite …

[HTML][HTML] Alakit and Daldyn kimberlite fields, Siberia, Russia: Two types of mantle sub-terranes beneath central Yakutia?

IV Ashchepkov, AM Logvinova, T Ntaflos… - Geoscience …, 2017 - Elsevier
Mineral data from Yakutian kimberlites allow reconstruction of the history of lithospheric
mantle. Differences occur in compositions of mantle pyropes and clinopyroxenes from large …

Eclogite varieties and their positions in the cratonic mantle lithosphere beneath siberian craton and archean cratons worldwide

I Ashchepkov, A Logvinova, Z Spetsius, H Downes… - Minerals, 2022 - mdpi.com
The pressure-temperature (PT) conditions and position of different groups of eclogites in the
sub-cratonic lithospheric mantle (SCLM) worldwide were established using clinopyroxene …

[HTML][HTML] Mantle terranes of the Siberian craton: their interaction with plume melts based on thermobarometry and geochemistry of mantle xenocrysts

IV Ashchepkov, AS Ivanov, SI Kostrovitsky… - Geodynamics & …, 2019 - gt-crust.ru
We have studied variations in the structure and composition of minerals from the pipes of the
Yakutian kimberlite province (YKP) in different mantle terranes of the Siberian craton. The …

Petrographic-geochemical types of Triassic alkaline ultramafic rocks in the Northern Anabar province, Yakutia, Russia

AV Kargin, YY Golubeva, EI Demonterova… - Petrology, 2017 - Springer
A classification suggested for alkaline ultramafic rocks of the Ary-Mastakh and Staraya
Rechka fields, Northern Anabar Shield, is based on the modal mineralogical composition of …

Problems of mantle structure and compositions of various terranes of Siberian Craton

IV Ashchepkov, NV Vladykin, A Ivanov… - … Rocks, Kimberlites and …, 2021 - Springer
Abstract Structure of mantle keel beneath Siberian craton was determined for mantle
terranes using monomineral thermobarometry and database of EPMA analyses (> 80000) …

[HTML][HTML] Relatively oxidized conditions for diamond formation at Udachnaya (Siberia)

L Faccincani, V Cerantola, F Nestola… - European Journal of …, 2022 - ejm.copernicus.org
Thanks to the physical strength of diamonds and their relatively unreactive chemical nature,
their mineral inclusions may remain exceptionally preserved from alteration processes and …

[HTML][HTML] Reconstructions of mantle structure beneath the Anabar Shield kimberlites–similarities and differences

IV Aschepkov, SI Kostrovitsky, SA Babushkina… - Geosystems and …, 2024 - Elsevier
Comparisons of mantle xenocrysts from Lower Triassic kimberlites in the Anabar Shield (Ary-
Mastakh, Dyuken, Kuranakh and Orto-Yargyn fields) have shown essential differences from …

Chrome-diopside xenocrysts entrained in a Neoproterozoic lamprophyre dyke from the Mysuru area: their origin and implications for lithospheric thickness beneath …

S Raghuvanshi, NV Chalapathi Rao… - Journal of the …, 2022 - Springer
In comparison to the eastern Dharwar Craton, the mantle-derived xenocrysts/xenoliths are
extremely rare or even unreported from the western Dharwar Craton, southern India. A …