The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 49
The crust is about 40 kilometres ( 25 miles ) thick in continental regions and is
highly heterogeneous , composed largely of rocks varying in composition
between granite and basalt . Beneath the deep oceanic basins , the crust is about
five ...
The crust is about 40 kilometres ( 25 miles ) thick in continental regions and is
highly heterogeneous , composed largely of rocks varying in composition
between granite and basalt . Beneath the deep oceanic basins , the crust is about
five ...
Page 53
stable between depths of approximately 70 and 350 kilometres ( 40 and 200
miles ) ; no further phase transformations occur in this region . Regions of
occurrence of plagioclase and amphibole pyrolites are limited in the uppermost
suboceanic ...
stable between depths of approximately 70 and 350 kilometres ( 40 and 200
miles ) ; no further phase transformations occur in this region . Regions of
occurrence of plagioclase and amphibole pyrolites are limited in the uppermost
suboceanic ...
Page 54
Between about 450 and 600 kilometres ( 300 and 400 miles ) the rate of increase
of seismic velocities is not indicative of further phase transformations .
Experimental studies reveal that the spinels and garnets formed near 400
kilometres ( 250 ...
Between about 450 and 600 kilometres ( 300 and 400 miles ) the rate of increase
of seismic velocities is not indicative of further phase transformations .
Experimental studies reveal that the spinels and garnets formed near 400
kilometres ( 250 ...
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Bibliographic information
| Title | The New Encyclopædia Britannica Part 2, Volume 1 of The New Encyclopaedia Britannica, ISBN 085229400X, 9780852294000 |
| Edition | 15 |
| Publisher | Encyclopædia Britannica, 1983 |
| ISBN | 085229400X, 9780852294000 |
| Export Citation | BiBTeX EndNote RefMan |