Geology√

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Geology√

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Geology√

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Geology√

1974 Archival description results for Geology√

1974 results directly related Exclude narrower terms

Structural elements of the world

Structural elements of the world. Colour scheme Pink (Shields), Grey (Carboniferous folding), Black (coal), Brown (younger folding), Yellow (Plateaus), Green (Cenozoic deposits), Orange (Volcanic masses, mainly plateau basalts). Deep sea trenches and /or island arcs indicated by blue lines.

Structural conditions favourable to the accumulation of oil and gas

Diagrams to illustrate the structural conditions favourable to the accumulation of oil and gas. A, most common occurrence, crest of an antcline, Ranger Field, Texas as an example. B, fault trap; Van Field, Texas. C, reef, porous coral-reef limestone, Scurry County, Texas and some from Alberta fields. D. Stratigraphic trap, difficult to discover, East Texas field (Von Engelin and Caster, 1952, p. 208).

Results 256 to 270 of 1974