Results 91 to 100 of about 4,204 (176)

Water in granite and pegmatite-forming melts [PDF]

open access: yes, 2012
In this paper we have compiled water concentration data obtained from melt inclusion in minerals, mostly quartz and topaz, in granite and pegmatite melts. A small number of data come from analysis of natural glasses.
Paul Davidson (14734876)   +1 more
core  

Geological setting, geochemistry and mineralogy of lithium bearing pegmatites in South Western Mali, West Africa; a review

open access: yesGeology, Ecology, and Landscapes
The Bougouni region in southwestern Mali hosts lithium-bearing pegmatites within the Paleoproterozoic Birimian greenstone belt. These pegmatites are classified into lithium-poor and lithium-rich types.
Elhadji Mory Traore   +5 more
doaj   +1 more source

Conditions of crystallization of granites and pegmatites of Tarbaganakhsky massif (Kuluarsky ridge, Verkhoyanye)

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2015
Compression during granite crystallization in the anticline arch leads to the formation of fluid- gneiss structures and separation of remanent pegmatite melt with its further moving to the periphery of the complex.
V. A. Utenkov, M. A. Fesenko
doaj   +1 more source

Granite pegmatite near Topsham [PDF]

open access: yes, 1984
5-I-20. Granite pegmatite in road cut on E side of northbound Rte. I-295, N of Topsham. Note large white feldspar crystal in upper part. With Joe Kelley.
Thompson, Woodrow B
core  

Radioanalytical Assessment and Mineral Chemistry Investigations in the Pegmatites of Eastern Desert, Egypt: Implications for Mining and Radiation Protection

open access: yesGeosciences
This study is carried out to investigate the radiological characteristics and mineralogical controls of natural radioisotopes (238U, 226Ra, 232Th, and 40K) in granitic pegmatites from Abu Zawal Area (AZA) in the Eastern Desert of Egypt.
Mohamed M. Ghoneim   +7 more
doaj   +1 more source

Harding Pegmatite mine - deep underground [PDF]

open access: yes, 1953
Juan Romero and Flaudio Griego in mine chamber; caption on photo reads: "Drilling into rich beryl zone near top surface of pegmatite deep underground.
Gilpin, Laura
core  

MGS Field Trip - Lord Hill Quarry (Pegmatite) [PDF]

open access: yes, 2019
MGS Field Trip - Lord Hill Quarry (Pegmatite)https://digitalmaine.com/mgs_geologic_field_photos/6551/thumbnail ...

core   +2 more sources

Triplite pod in pegmatite, Stoneham [PDF]

open access: yes, 1982
4-D-13. Triplite pod in pegmatite, Lord Hill Quarry, Stoneham. MGS field trip. Project Name: Thompson NGGDPP Grant 2020https://digitalmaine.com/mgs_geologic_field_photos/17549/thumbnail ...
Thompson, Woodrow B
core  

Muscovite in pegmatite [PDF]

open access: yes, 2019
Light reflects from cleavage surface of muscovite flake just above the pencil point in pegmatite. Another muscovite book is to the left. This is a close-up of photo HNB_1818.JPG Project Name: Bald Mountain, Camdenhttps://digitalmaine.com ...
Berry, Henry N, IV
core  

Harding Pegmatite mine - construction - framing [PDF]

open access: yes, 1940
Four men assembling the wooden frame of a building at the Harding Pegmatite Mine.

core  

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