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The Ore Bin ; Vol. 38 No. 6 (June 1976)

Creator:

Oregon. Dept. of Geology and Mineral Industries, Allen, John Eliot, 1908-, and Beaulieu, John D.

Abstract:

The geology of Oregon has become a jigsaw puzzle of moving parts set on a foundation of changing conditions as the crust and mantle undergo successively different manners of deformation through time. As more megahypotheses arise from increasingly sophisticated views of plate tectonics and from more detailed analyses of synoptic...

Resource Type:

Journal

Full Text:

‘ 1069 State Office Bldg. Portland Oregon 97201 The ORE BIN Volume 38, No. 6 June 1976 PLATE TECTONIC
The Ore bin ; Vol. 34 No. 8 (August 1972)

Creator:

Oregon. Dept. of Geology and Mineral Industries and Beaulieu, John D.

Abstract:

The plate tectonic history of Oregon is but one piece of a worldwide jigsaw puzzle encompassing much of geologic time. With the splitting of Pangaea in Mesozoic times, Oregon has occupied the leading edge of the North American Plate as it has impinged upon the ancestral oceanic East Pacific Plate....

Resource Type:

Journal

Full Text:

many of the tenets of the geosynclinal theory. The • plate tectonic model maintains that the earth's
Diffuse deformation patterns along the North American plate boundary zone, offshore western United States

Creator:

Chaytor, Jason D.

Abstract:

Plate boundaries are commonly regions of complex, diffuse deformation with the motion across the boundary accommodated by numerous structural systems, rather than being narrow, discrete zones of deformation. One such boundary occurs where the North American plate makes contact with Juan de Fuca, Gorda, and Pacific plates along the west...

Resource Type:

Dissertation

Full Text:

) Shaded-bathymetric map of Gorda plate (b) Tectonic setting of Gorda plate