Results 41 to 50 of about 15,774 (268)

Geology, Petrography, and Geochemistry of Younger Granites and Related Radioactive Pegmatite from Gabal El Urf Area, North Eastern Desert, Egypt: Implications for the Evolution of the NYF-Type Rare-Elements Granitic Pegmatite

Iraqi Geological Journal, 2023
Gabal El Urf region is located in the northern Egyptian Eastern Desert and overlain essentially by older and younger granitoids of Late Proterozoic age.
Amr Abdel Hamid, Seddik Seddik , Mohamed Hassan, Hicham Abdel Hamid   +3 more
doaj   +1 more source

Evolution and Li Mineralization of the No. 134 Pegmatite in the Jiajika Rare-Metal Deposit, Western Sichuan, China: Constrains from Critical Minerals

Minerals, 2021
The Jiajika rare-metal deposit located in western Sichuan Province (China) is renowned as the largest lithium deposit in Asia, and the No. 134 pegmatite dike is the largest lithium pegmatite under mining conditions in the area. On the basis of a detailed
Zhen Wang, Jiankang Li, Zhenyu Chen, Qinggao Yan, X. Xiong, Peng-Chuan Li, J. Deng   +6 more
semanticscholar   +1 more source

Bulk composition of a zoned rare-earth minerals-bearing pegmatite in the Pikes Peak granite batholith near Wellington Lake, central Colorado, U.S.A.

Rocky Mountain Geology, 2021
A previously undescribed small lenticular (~5 × 5 × 5 m) pegmatite, located near Wellington Lake in the NW part of the 1.08 Ga ‘A-type’ (anorogenic) ferroan Pikes Peak granite batholith, ~15 km SW of the South Platte pegmatite district in central ...
M. Raschke, C. Stern, Evan J. D. Anderson, M. A. Skewes, G. L. Farmer, J. Allaz, P. Persson   +6 more
semanticscholar   +1 more source

Evaluation of Saudi pegmatite and its use in porcelain industry [PDF]

Processing and Application of Ceramics, 2012
Pegmatite is the main source of feldspar for ceramics industry. Usage of pegmatite in ceramic industry causes some problems due to the presence of mica and iron oxides.
Hassan M.H. Al-Marzouki, Christopher Jeffery, Gamal A. Khater   +2 more
doaj  

P-T path fluid evolution in the Gross Spitzkoppe granite stock, Namibia [PDF]

Bulletin of the Geological Society of Finland, 2002
The Gross Spitzkoppe granite stock (GSS) is a zoned 30 km2 epizonal intrusion that consists of three main granites: 1) medium-grained biotite granite (marginal), 2) a coarse-grained biotite granite, and 3) a central, porphyritic granite.
S. Frindt, M. Poutiainen
doaj   +1 more source

Prospecting of rare metals in the East-Ukrainian pegmatitе province – important part of geological exploration in Ukraine

Мінеральні ресурси України, 2021
Nowadays, there has significantly increased the interest of industry in rare metal mineralization in pegmatites, which determines their importance as raw materials for “critical elements” Ta, Nb, Li, Be, Sn, Y, TR, etc., and thus there is a need to re ...
V. V. Sukach, L. V. Isakov, V. P. Bezvynnyi, V. O. Shpylchak   +3 more
doaj   +1 more source

Pegmatite and Fault Spatial Distribution Patterns in Kalba-Narym Zone, East Kazakhstan: Integrated Field Observation, GIS, and Remote Sensing Analysis

Geosciences
This study is an attempt to compile and complete structural features of the Kalba-Narym Zone in East Kazakhstan belonging to the western Central Asian Orogenic Belt, which is known to be well-endowed with the occurrence of pegmatite rare-metal ...
Azam Soltani Dehnavi, Syed Muzyan Shahzad, Piotr Skrzypacz, Fereshteh Shabani-Sefiddashti   +3 more
doaj   +1 more source

Mapeamento geológico do Pegmatito Alto do Tibiri: aspectos estruturais e mineralógicos

Revista Principia, 2017
The Alto Tibiri is a pegmatite body located in the southern region of the Rio Grande do Norte, in Parelhas city, geologically inserted in the Borborema Pegmatite Province and occur intruding the mica schists of the Seridó Formation.
Paulo Jedean da Silva Araújo, Vinicius Anselmo Carvalho Lisboa, José Ramilson dos Santos Oliveira   +2 more
doaj   +1 more source

Do Pegmatites Crystallise Fast? A Perspective from Petrologically-Constrained Isotopic Dating

Geosciences, 2023
Most recent studies consider the formation of individual pegmatite bodies to be a fast process with estimated crystal growth rates reaching a walloping 10 m/day. This opinion is presumably underpinned by the traditional way of thinking of them as the end
Daniil V. Popov
doaj   +1 more source

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

Geological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source