Creationism in the Grand Canyon, Texas textbooks

Wintertime Boundary Layer Structure in the Grand Canyon

Wintertime temperature profiles in the Grand Canyon exhibit a neutral to isothermal stratification during both daytime and nighttime, with only rare instances of actual temperature inversions. The canyon warms during daytime and cools during nighttime more or less uniformly through the canyon’s entire depth. This weak stability and temperature structure evolution differ from other Rocky Mountai...

The Biogeographic Significance of a Large, Deep Canyon: Grand Canyon of the Colorado River, Southwestern USA

Regional economic impacts of Grand Canyon river runners.

Economic impact analysis (EIA) of outdoor recreation can provide critical social information concerning the utilization of natural resources. Outdoor recreation and other non-consumptive uses of resources are viewed as environmentally friendly alternatives to extractive-type industries. While outdoor recreation can be an appropriate use of resources, it generates both beneficial and adverse soc...

Near shore ecology of Grand Canyon Fish, Funding Opportunity

1 Department of Wildlife Ecology and Conservation, 110 Newins-Ziegler Hall, University of Florida, Gainesville, Florida 32611 2 Ecometric Research Inc. 3560 W 22 Avenue, Vancouver, BC V6S1J3 3 Environmental and Forest Biology, State University of New York, 249 Illick Hall, 1 Forestry Drive, Syracuse, NY 13210 School of Forest Resources and Conservation, University of Florida, 7922 NW 71 Street,...

Residence time of groundwater issuing from the South Rim Aquifer in the eastern Grand Canyon

In the eastern Grand Canyon, secondary porosity created by north trending faults, folds, and breccia pipes, facilitates groundwater flow through the South Rim carbonate aquifer. Springs associated with the South Rim Aquifer have low H concentrations, [Ca']/[Mg '] ratios close to unity, and variable uranium concentrations. For a geochemical comparison, springs are subcategorized on the basis of ...