Results 1 to 10 of about 5,023 (118)

Petrogenesis of Paleozoic–Early Mesozoic Granites and Pegmatites in the Yuechengling Pluton of South China

Lithosphere, 2022
Although pegmatites are volumetrically minor in the upper continental crust, these rocks host abundant rare metal deposits (e.g., Li, Be, Rb, Ta, and Nb).
Xiao Liu, Xi-Jun Liu, Wei Fu, Yu Shi, Jing-Lian Guo, Rong-Guo Hu, Chuan Zhao, Meng Feng, Zheng-Lin Li, Xianzhu Qin   +9 more
doaj   +1 more source

Wodginite as an indicator mineral of tantalum-bearing pegmatites and granites

Записки Горного института, 2023
In the composition of tantalum-niobates, the tin-bearing wodginite group minerals (WGM) were found: wod-ginite, titanowodginite, ferrowodginite, ferrotitanowodginite, lithiowodginite, tantalowodginite, “wolframowodginite”.
Viktor I. Alekseev
doaj   +1 more source

Exploration and Petrogenesis of Corundum-Bearing Pegmatites: A Case Study in Migif-Hafafit Area, Egypt

Frontiers in Earth Science, 2022
A net of pegmatite veins crosscut gneiss and dismembered ophiolitic ultramafic rocks are abundant in the Migif-Hafafit culmination area, South Eastern Desert, Egypt. Some of these pegmatites are corundum-bearing.
Farrage M. Khaleal, Gehad M. Saleh, El Saeed R. Lasheen, Abdullah M. Alzahrani, Samir Z. Kamh   +4 more
doaj   +1 more source

RELATIVE AGE OF ACCESSORY MINERALS IN PEGMATITES OF THE ILMENY MOUNTAINS, SOUTH URALS [PDF]

Минералогия, 2021
Effective retrospective modeling of mineral formation in natural systems should take into account all minerals – rock-forming, secondary in abundance and accessory.
V.A. Popov
doaj   +1 more source

MINERALOGY OF APATITE-AEGIRINE-MESOPERTHITE PEGMATITES OF MINE NO. 243 OF THE ILMENY STATE RESERVE (SOUTH URALS) [PDF]

Минералогия, 2023
The paper describes mineralogy of apatite-aegirine-mesoperthite pegmatites, which are located in a fenite halo at the southeastern contact of the Selyankino syenite block (Ilmeny State Reserve, South Urals). Two pegmatite veins are exposed by mines.
E.P. Makagonov, S.А. Repina, M.A. Rassomakhin   +2 more
doaj   +1 more source

Development of Open Transport of Aqueous Fluid from Pegmatite Revealed by Trace Elements in Garnet

Geofluids, 2022
We investigated the fluid flow and elemental transport from a granitic body to the middle crust by determining the trace element compositions of garnet in pegmatites related to a quartz diorite intrusion and metamorphic rocks on Kinkasan Island ...
Astin Nurdiana, Atsushi Okamoto, Masaoki Uno, Noriyoshi Tsuchiya   +3 more
doaj   +1 more source

Petrology and geochemistry of Li-bearing pegmatites and related granitic rocks in southern Thailand: implications for petrogenesis and lithium potential in Thailand

Frontiers in Earth Science, 2023
Lithium (Li) can be found in many minerals, including lepidolite. Lepidolite is found in pegmatite-related tin deposits in the Phang Nga area in southern Thailand.
Alongkot Fanka, Jaruphichaya Tadthai
doaj   +1 more source

GARNET MINERALIZATION ASSOCIATED WITH LATE MAGMATIC AND HYDROTHERMAL-METASOMATIC PROCESSES IN DUNITES OF THE NIZHNY TAGIL CLINOPYROXENITE-DUNITE MASSIF, CENTRAL URALS [PDF]

Минералогия, 2022
The miarolitic dunites of the Nizhny Tagil massif (Central Urals), the structure of miaroles and the principles of co-occurrence of minerals are studied.
S.Yu. Stepanov, R.S. Palamarchuk, V.V. Shilovskikh, D.A. Artemiev, A.V. Korneev, A.K. Kozin   +5 more
doaj   +1 more source

Mineral chemistry and genetic implications of garnet from the São João del Rei Pegmatitic Province, Minas Gerais, Brazil

Brazilian Journal of Geology, 2020
The pegmatites of the São João del Rei Pegmatitic Province are related to the Siderian protoliths of the Cassiterita and Resende Costa orthogneisses and to the Ritápolis metagranitoid of Ryacian age.
Sarah Siqueira da Cruz Guimarães Sousa, Ciro Alexandre Ávila, Reiner Neumann, Fabiano Richard Leite Faulstich, Felipe Emerson André Alves, Taís Proença Cidade, Victor Hugo Riboura Menezes da Silva   +6 more
doaj   +1 more source

PHYSICO-CHEMICAL PARAMETERS OF MINERAL-FORMING PROCESSES IN PEGMATITES OF THE ILMENOGORSK ALKALINE COMPLEX (SOUTH URALS) AND ALTAI-SAYANY REGION (SOUTH SIBERIA) [PDF]

Минералогия, 2020
The conditions of mineral formation in non-granite pegmatites of the Urals and Siberia are examined. The physico-chemical parameters of the crystallization of minerals in miaskite-pegmatites of the Ilmenogorsk alkaline complex (South Urals) and ...
V.A. Simonov
doaj   +1 more source