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The weathering process of carbonatite: weathering time [PDF]

open access: yesPeerJ, 2023
Soil formation by rock weathering is driven by a combination of parent material, climate, organisms, topography, and time. Among these soil-forming factors, time plays a pivotal role in the weathering of carbonatite but it is a challenging factor to ...
Jin Chen   +8 more
doaj   +3 more sources

Geochemistry of Monazite within Carbonatite Related REE Deposits

open access: yesResources, 2017
Approximately >50% of global rare earth element (REE) resources are hosted by carbonatite related deposits, of which monazite is one of the most important REE minerals. Monazite dominates more than 30 carbonatite-related REE deposits around the world,
Shao-Yong Jiang
exaly   +3 more sources

In situ U–Pb age determination of apatite from carbonatite and kimberlite in the Batain Basin, eastern Oman

open access: yesFrontiers in Earth Science, 2023
Northeastern Oman is characterized by carbonatite and kimberlite complexes, which are the ideal samples for studying the relationship between carbonatite and kimberlite. However, the ages of the Oman kimberlite and carbonatite complexes are still unknown,
Jing Sun   +3 more
doaj   +1 more source

Genesis of silica-rich carbonatite in the Miaoya complex, Hubei Province and its implications for REE mineralization

open access: yes地质科技通报, 2023
The Miaoya complex in Hubei Province hosts one of the most important REE deposit in China. This complex is composed of syenite, carbonatite (SiO2 < 10%), and a suite of silica-rich carbonatite (SiO2>30%).
Yinqiu Hu, Bin Wu, Qian Ren
doaj   +1 more source

Rare earth element abundances in carbonatites and fenites of the Newania complex, Rajasthan, India [PDF]

open access: yesBulletin of the Geological Society of Finland, 1989
The Newania carbonatite is intrusive into the Untala granite-gneiss of Precambrian age. An aureole of dominantly sodic fenites has been developed around the carbonatite.
S.G. Viladkar, P.B. Pawaskar
doaj   +1 more source

The carbonatites of Amba Dongar, Gujarat, India [PDF]

open access: yesBulletin of the Geological Society of Finland, 1981
The geology, petrography and major and trace element geochemistry of Amba Dongar carbonatites are described. The ring structure of Amba Dongar carbonatite-alkalic complex has a central core of basalt collared by carbonatite breccia which in turn is ...
S.G. Viladkar
doaj   +1 more source

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

open access: yesГеодинамика 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   +5 more
doaj   +1 more source

AGE AND GEODYNAMIC SETTINGS OF MIASKITE-PEGMATITES, CARBONATITES, AND Nb-Zr MINERALIZATION OF THE ILMENO-VISHNEVOGORSKY ALKALINE COMPLEX, SOUTH URAL (U-Pb AND Rb-Sr ISOTOPE DATA)

open access: yesГеодинамика и тектонофизика, 2022
The Ilmeno-Vishnevogorsky miaskite-phenite-carbonatite complex (IVС), located in the Urals folded region, is a representative of "linear type" carbonatite complexes, with which Nb-Zr deposits are associated.
I. L. Nedosekova   +3 more
doaj   +1 more source

Carbonatite complexes of the South Urals: geochemical features, ore mineralization, and geodynamic settings

open access: yesЗаписки 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

Alkaline lamprophyres from the Sokli complex, northern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1978
Alkaline lamprophyric dykes in the Sokli carbonatite complex closely resemble kimberlites in mineralogical and chemical composition. Mineralogically, they differ from kimberlites by the presence of high-manganese ilmenite and richterite, and the absence ...
H. Vartiainen, P. Kresten, Y. Kafkas
doaj   +1 more source

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