
Giant Current Ripples at Omak, WA
Lidar hillshade image. Giant current ripples atop a terrace surface near Omak, WA. Hwy 97 is at the center of the image. The ripple field...

Great Terrace of the Columbia #1 - The Explorers
Geologists have long been fascinated with the high terrace that stands well above the modern Columbia River between Brewster and Chelan....

Calcrete Growth in Alluvial Lowlands
A robust association between thick calcretes (petrocalcic horizons) and lowland alluvial deposits is a key finding of my recent work in...