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Filtering by: Date issued sim 1971-04-29 Peer Reviewed No

Sedimentary petrology of some tertiary formations, Upper Nehalem River Basin, Oregon

Creator:

Van Atta, Robert O.

Abstract:

The southern half of the upper Nehalem River basin contains the most complete section of lower to middle Tertiary marine sedimentary and volcanic rocks in northern Oregon. Determination of stratigraphic relationships of six formations, and their depositional environments and provenance is the chief objective of this paper. More than 75...

Resource Type:

Dissertation
On the numerical interpretation of gravity and other potential field anomalies caused by layers of varying thickness

Creator:

Adotevi-Akue, George Modesto

Abstract:

This thesis involves the interpretation of gravity and other potential field anomalies caused by layers of varying thickness. The partial differential equations of potential field theory are reviewed for gravitational and magnetic force fields. A similar review is carried out for steady-state heat transport and diffusion processes. For the gravitational...

Resource Type:

Dissertation
Economies of scale in sawmilling in British Columbia

Creator:

Dobie, Jas. (James)

Abstract:

The number of sawmills in the coastal lumber-producing area of British Columbia diminished from 364 In 1955 to 162 in 1968. In the interior of the province the reduction in plant numbers was from 2125 to 740. Over the same period lumber production in the province increased from 4.9 billion...

Resource Type:

Dissertation