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Coupled anatexis and extreme differentiation are the keys for producing giant lithium-rich pegmatites. [PDF]

open access: yesProc Natl Acad Sci U S A
Wei HZ   +12 more
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Friction on a granite to granite interface

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1989
Direct shear tests were conducted on a granite to granite interface for the purpose of tracing the evolution of frictional resistance as the initially smooth and polished surface wears during continuing shearing displacement. At the moment when sliding on the freshly manufactured interface starts (first slip), the friction angle is very low, between 15°
E. Z. Lajtai, A. M. Gadi
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Granites

Geology Today, 2023
Granites are coarse‐grained igneous intrusive rocks, which, although present in most tectonic settings, are most characteristic of continental crust. While basalts are the most abundant volcanic rocks, granites are the most abundant intrusive rocks. On the scale of the Solar System, while basalts are ubiquitous, granites seem to be restricted to the ...
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Ragnar Granit

Science, 1967
If it shall be demanded, then, when a man begins to have any ideas? I think the true answer is, when he first has any sensation. For since there appear not to be any ideas in the mind before the senses have conveyed any in, I conceive that ideas in the understanding are coeval with sensation. . . .
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Granite

2022
This chapter discusses how granite is the geologic backbone of the Sierra Nevada. The discovery of photosynthesis by primitive microorganisms had consequences: it transformed Earth's early atmosphere into an oxygenated, caustic pall that could weather rocks into dust with unprecedented efficiency. Dust is where granite begins.
Richard J. Nevle   +2 more
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The geochemistry of the Sorvik granite—a TIB-1 granite

GFF, 2008
The Sorvik granite occurs as rounded massifs in the Revsund granite in central Sweden. The rock is medium-grained with rounded quartz crystals ('drop quartz') and occasional, sometimes albiterimmed megacrysts of K-feldspar. It is a faintly peraluminous 1-type granite with some A-type affinities showing a limited chemical variation.
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