Article on geology and hydrogeology of the Florida Keys with sections on Holocene and Pleistocene geology, water resources, and introduction with a brief history and overview of early studies.
Project summary, photos of logging truck, and bibliographies on log interpretation techniques and instrumentation to record geophysical data in wells and test holes for studying ground water hydraulics and evaluate waste disposal sites.
Plain-language questions and answers about the stable-isotopic record obtained from Devils Hole, a cave in south-central Nevada. The data do not agree with the Milankovitch hypothesis concerning the causes of glacial cycles in climate change.
Complex report on the interpretation of aeromagnetic data to study hydrogeology of the San Pedro basin, Cochise County, Arizona determining geologic structure, basin fill and depth to water. Online version of a CD-ROM publication.
Description of the project to publish new bedrock geologic maps in the United States to advance the understanding of the region's bedrock aquifers. Includes list of projects.
Discussion and links to research for the multi-disciplinary investigation on the Norman Landfill located on alluvium associated with the Canadian River in central Oklahoma.
Flagstaff atlas webpages including digital elevation model images, Landsat Thematic Mapper images, SPOT panchromatic stereo images, and digital photos of Flagstaff. Includes link to the original Open File Report OF-96-739.
Overview of fractured rock research aimed at understanding the movement of water through fracture networks, and characterize field conditions influencing contaminant migration. Includes programs and publications.
U.S. Department of the Interior |
U.S. Geological Survey