Mineralogical analysis of 3 upland soil profiles over Tyee parent
rock from the Alsea Basin Area, Oregon showed clear differences
among the 4 soil series represented. Soils from the area of higher
precipitation (over 80 inches, approximately) had no montmorillonite,
lower base saturation and cation exchange capacity, but no lower...
Sediments on the inner portion of the Oregon continental shelf
consist of clean, well-sorted, detrital sand. This sand has an average
median diameter of 2.53Φ (. 173 mm) and is both positively and
negatively skewed. Deposits with median diameters in the coarse
sand and gravel classes occur at depths of...