Basalts dredged from the northeastern Pacific Ocean
Science
By: C.G. Engel and A.E.J. Engel
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Abstract
Volcanic rocks dredged from seamounts, fault ridges, and other major geological features of the northeast Pacific Ocean include a wide variety of basalts. Most of these are vesicular, porphyritic types with near analogues in the Hawaiian and other oceanic islands. in addition, aluminous basalts and diabasic tholeiites impoverished in potassium also occur. There is no simple correlation of composition, degree of oxidation, vesiculation, or hydration of these basalts with texture, or depth of dredge site. Most samples appear to have been extruded at much shallower depths than those now pertaining at the dredge site. the distribution of these basalts suggests that the andesite line coincides with or lies on the continent side of the foot of the continental slope.
Suggested Citation
Engel, C., Engel, A., 1963, Basalts dredged from the northeastern Pacific Ocean: Science, v. 140, no. 3573, p. 1321-1324.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Basalts dredged from the northeastern Pacific Ocean |
| Series title | Science |
| Volume | 140 |
| Issue | 3573 |
| Year Published | 1963 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Science |
| First page | 1321 |
| Last page | 1324 |