Groundwater has an important role in forging the composition of surface water, supplying nutrients crucial for the development of balanced ecosystems and potentially introducing contaminants into otherwise pristine surface water. Due to water-rock interactions, radium (Ra) in gr…
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This dissertation explores the peculiarity that though the river term (nāru(m)/nhr/ nāhār) occurs 119 times, in the Hebrew Bible there are no rivers in Israel. The meaning of wadi (nahallu( m)/nhl/nahal), the torrential flow from winter rains or the gorge that remains when the w…
Fluvial barforms are the fundamental building blocks of rivers, but their scales, controls, dynamics, and habitats remain poorly understood and quantified. The scales of bars deposited in the rock record are crucial to interpreting the history of earth and other planets. But bar…
On decadal time-scales, most rivers remain relatively stable, changing through shifting bars and eroding cutbanks. On longer time-scales, rare but radical channel repositioning events are documented on rivers around the globe. This repositioning process, called avulsion, has cau…
The Rio de Flag watershed, which covers approximately two hundred square miles, runs from the western slopes of the San Francisco Peaks into and through the City of Flagstaff, Arizona until it merges with the San Francisco Wash to the east of the city, which runs into the Little…