Results 241 to 250 of about 277,297 (279)
Asynchronous transfer of magmas and mineralizing fluids in a plutonic-subvolcanic-volcanic plumbing system. [PDF]
Sci RepPaoli G +4 more
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Migration Behavior of Technetium-99 in Granite, Clay Rock, and Shale: Insights into Anionic Exclusion Effects. [PDF]
ToxicsShi Y +6 more
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Development of a laboratory-scale apparatus and experimental investigation of fluid property effects on pipe wear in slurry shield TBM operations. [PDF]
Sci RepYoon Y, Kim H, Shin YJ, Jung J, Choi H.
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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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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
openaire +2 more sources
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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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 ...
openaire +1 more source
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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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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1948
There can have been few occasions in the past when the President of the Geological Society of London—the mother of all geological societies—has been able to accept the hospitality of that most splendid of daughters, The Geological Society of America. I come bearing most hearty greetings and good wishes from my Society to yours.
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There can have been few occasions in the past when the President of the Geological Society of London—the mother of all geological societies—has been able to accept the hospitality of that most splendid of daughters, The Geological Society of America. I come bearing most hearty greetings and good wishes from my Society to yours.
openaire +1 more source
Friction on a granite to granite interface
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1989Direct 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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