Frontiers in Earth Science, 2021 The 2 Ga-old Ihouhaouene alkaline complex (Western Hoggar, Algeria) is among the oldest known carbonatite occurrences on Earth. The carbonatites are calciocarbonatites hosted by syenites, the predominant rock type in the complex.
A. Djeddi +6 more
doaj +2 more sources
Spin Transition of Iron in Deep‐Mantle Ferromagnesite
Geophysical Monograph Series, Page 115-125., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Jiachao Liu, Suyu Fu, Jung‐Fu Lin
wiley +7 more sources
Silica is unlikely to be soluble in upper crustal carbonatite melts. [PDF]
Nat Commun, 2023 A consensus among all experimental studies is that the solubility of silica (SiO 2 ) is low in upper crustal carbonatite melts of below 5 kbar and 1000 °C (mostly much less than 5 wt% SiO 2 ) 1,2 , in agreement with most natural melt inclusion studies 3 –
Anenburg M, Guzmics T.
europepmc +2 more sources
Ca isotope systematics of carbonatites: Insights into carbonatite source and evolution [PDF]
Geochemical Perspectives Letters, 2021 doi: 10.7185/geochemlet.2107 Carbonatite, an unusual carbonate-rich igneous rock, is known to be sourced from themantlewhich provides insights intomantle-to-crust carbon transfer.
J. Sun +12 more
openaire +2 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +4 more sources
Communications Earth & Environment, 2023 Rare earth element ore deposits associated with carbonatite derived from Earth’s mantle supply half of the world’s rare earth element. However, the formation of carbonatite and initial enrichment and transport of rare earth element in the mantle, is ...
Z. Hou +10 more
semanticscholar +1 more source
Minerals, 2023 The carbonatite complexes of the Central Asian carbonatite province comprise the Siberian carbonatites of the Western Transbaikalia and the Central Tuva regions, as well as those from the Mushugai-Khudag complex in Southern Mongolia. They are confined to
I. Prokopyev, A. Doroshkevich, A. Redina
semanticscholar +1 more source
Evolution of Carbonatite Magmas in the Upper Mantle and Crust
Elements, 2021 Carbonatites are the most silica-poor magmas known and are amongst Earth’s most enigmatic igneous rocks. They crystallise to rocks dominated by the carbonate minerals calcite and dolomite.
G. Yaxley, B. Kjarsgaard, A. Jaques
semanticscholar +1 more source
Записки Горного института, 2022 The article presents the results of study of the Ilmeno-Vishnevogorsky and Buldym carbonatite complexes in the Urals. It has been established that the carbonatites of the Ilmeno-Vishnevogorsky complex are represented by high-temperature ...
Irina L. Nedosekova
doaj +1 more source
Economic Geology, 2022 Bull Hill is a carbonatite diatreme within the Paleogene Bear Lodge Carbonatite Complex in Wyoming, USA. Rare earth element (REE)-bearing carbonate, fluorocarbonate, phosphate, and oxide minerals occur within near-vertical carbonatite dikes on the ...
Mandi Hutchinson +3 more
semanticscholar +1 more source