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from article Epidote
Epidote. (a) Crystals from Prince of Wales Island, Alaska (Yale University). (b) Oscillatory zoning of these crystals.
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Image
from article Epidote
Crystal structure of the epidote-group mineral clinozoisite. Si3 represents the silicate group SiO4; Si1 and Si2 represent the silicate group Si2O7. M1, M2, and M3 are distinct kinds of octahedra. A1 and A2 are cavities in the framework structure.…
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from article Chrysoberyl
Chrysoberyl crystals. (Credit: RF Company/Alamy)
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from article Meteorological optics
The subsun, resulting from sunlight reflected off the nearly horizontal faces of falling flat-plate ice crystals. (From R. Greenler, Rainbows, Halos, and Glories, Cambridge University Press, 1980)
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from article Cyclone
Force balance for gradient flow about a cyclone in the Northern Hemisphere. Thin arrow indicates wind velocity; L = low-pressure center; Co = Coriolis force; Ce = centrifugal force; and P = pressure gradient force.
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from article Cyclone
Plane view of an extratropical cyclone in the Northern Hemisphere as depicted on a surface weather map. The L designates a pressure low.
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from article Cyclone
Classic Norwegian cyclone model showing three stages in the life of a polar front cyclone. (a) Frontal discontinuity, (b) distorted frontal surface, (c) occlusion. (After B. J. Hoskins, Dynamical processes in the atmosphere and the use of models,…
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from article Arctic Ocean
Arctic Ocean.
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from article Arctic Ocean
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from article Diagenesis
Flowchart illustrating the links between diagenetic realms: eogenesis, mesogenesis, and telogenesis. (R. H. Worden and S. D. Burley, Sandstone diagenesis: The evolution of sand to stone, in S. D. Burley and R. H. Worden, Sandstone Diagenesis: Recent…
