Results 1 to 10 of about 296 (107)

SEQUENCE OF AILLIKITE AND CALCITE CARBONATITE FORMATION WITHIN THE BELAYA ZIMA MASSIF, EAST SIBERIA, RUSSIA [PDF]

Геодинамика и тектонофизика, 2022
The mineralogical and geochemical features, as well as the sequence of formation of aillikite and calcite carbonatite (CC) with pyrochlore are described for the massif of alkaline ultramafic carbonatite complexes Belaya Zima located in East Siberia ...
S. M. Zhmodik, I. V. Ashchepkov, D. K. Belyanin, E. V. Ayriyants, O. N. Kiseleva, V. A. Ponomarchuk   +5 more
doaj   +6 more sources

The Newly Discovered Neoproterozoic Aillikite Occurrence in Vinoren (Southern Norway): Age, Geodynamic Position and Mineralogical Evidence of Diamond-Bearing Mantle Source [PDF]

Minerals (Basel, Switzerland), 2020
During the period 750–600 Ma ago, prior to the final break-up of the supercontinent Rodinia, the crust of both the North American Craton and Baltica was intruded by significant amounts of rift-related magmas originating from the mantle.
Masafumi Sudo, Yevgeny Savchenko, Kåre Kullerud   +2 more
exaly   +4 more sources

MELT INCLUSIONS IN OLIVINE AS A SOURCE OF INFORMATION ON THE COMPOSITION AND EVOLUTION OF DEEP MELTS OF AILLIKITES (ULTRAMAFIC LAMPROPHYRES) OF THE ILBOKICHI UPLIFT, THE SW SIBERIAN PLATFORM [PDF]

Геодинамика и тектонофизика, 2022
Aillikites are kimberlite-like rocks, important for understanding the composition and processes occurring in the mantle. Melt inclusions represent a reliable source of information.
A. Е. Starikova, I. R. Prokopyev, A. G. Doroshkevich, A. V. Kargin, A. A. Nosova, S. A. Kovalev   +5 more
doaj   +6 more sources

Links Between Calcite Kimberlite, Aillikite and Carbonatite in West Greenland: Numeric Modeling of Compositional Relationships [PDF]

Journal of Petrology
Textural, mineralogical and mineral compositional observations in a suite of Neoproterozoic aillikite and calcite kimberlite dykes from southern West Greenland point to consistent variations in melt major element compositions amongst these silica ...
Sebastian Tappe
exaly   +5 more sources

The mantle of Scotland viewed through the Glen Gollaidh aillikite [PDF]

Mineralogy and Petrology, 2017
The Glen Gollaidh aillikite dyke (58.36741°N 4.69751°W), N.W. Scotland, occurs within the Neoproterozoic sedimentary rocks of the Moine Supergroup ~4 km east of the Moine Thrust.
M. Hutchison, J. Faithfull, D. Barfod, J. W. Hughes, B. Upton   +4 more
semanticscholar   +6 more sources

Petrology, Age, and Rift Origin of Ultramafic Lamprophyres (Aillikites) at Mount Webb, a New Alkaline Province in Central Australia

Geochemistry, Geophysics, Geosystems, 2023
Diamond exploration over the past decade has led to the discovery of a new province of kimberlitic pipes (the Webb Province) in the Gibson Desert of central Australia.
Z. J. Sudholz, T. H. Reddicliffe, A. L. Jaques, G. M. Yaxley, M. Haynes, A. Gorbatov, K. Czarnota, C. Frigo, R. Maas, B. Knowles   +9 more
doaj   +4 more sources

MICA COMPOSITION REFLECTING CONDITIONS OF AILLIKITE FORMATION IN ZIMA COMPLEX OF EASTERN SIBERIA

Геодинамика и тектонофизика
Four types of mica were identified in the macrocryst and fine porphyry aillikites from the Yarma zone of the Urik-Ija graben considering specific features of morphology, chemical composition, zonation and crystallization conditions.
V. B. Savelyeva, Yu. V. Danilova, E. P. Bazarova, B. S. Danilov, E. A. Khromova   +4 more
doaj   +3 more sources

The First Discovery of the Paleoproterozoic Aillikite Dykes in Sarmatia: Geochemistry and Petrogenesis

Doklady Earth Sciences
The aillikite dykes of carbonate-biotite composition, intersecting the Paleoproterozoic banded iron formations, were discovered in the Kursk block of Sarmatia for the first time. Their age is 2.10–2.07 Ga.
Alexander V Samsonov, K A Savko
exaly   +3 more sources

GEOCHEMICAL FEATURES OF DIKE AILLIKITES AND ALKALINE ROCKS OF THE BOLSHETAGNINSKY MASSIF (URIK-IYA GRABEN, EAST SAYAN REGION) [PDF]

Геодинамика и тектонофизика, 2022
The ICP-MS determinations have been made on microelement content of ~650–640 Ma ultramafic lamprophyre-aillikite dikes and alkaline silicate rocks and carbonatites from the Bolshetagninsky ijolite-syenite massif, spatially overlapped in the northern Urik-
V. B. Savelieva, E. P. Bazarova, Yu. V. Danilova, B. S. Danilov   +3 more
doaj   +3 more sources

Carbonatite, Aillikite and Olivine Melilitite From Zandkopsdrift, Namaqualand, South Africa: Constraints on the Origin of an Unusual Lamprophyre-Dominated Carbonatite Complex and the Nature of Its Mantle Source

Lithos, 2022
Chris J. Harris
exaly   +3 more sources