Conference Papers

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January 1, 1991

The hydrogeologic framework of the Northern Coastal Province Aquifer System of Puerto Rico The hydrogeologic framework of the Northern Coastal Province Aquifer System of Puerto Rico

No abstract available.

Authors

Jesus Rodriguez-Martinez

Water Resources Mission Area, Caribbean-Florida Water Science Center (CFWSC)

January 1, 1991

40Ar/39Ar laser fusion and K-Ar ages from Lathrop Wells, Nevada, and Cima, California. The age of the latest volcanic activity in the Yucca Mountain area 40Ar/39Ar laser fusion and K-Ar ages from Lathrop Wells, Nevada, and Cima, California. The age of the latest volcanic activity in the Yucca Mountain area

K-Ar and 40Ar/39Ar ages from the Lathrop Wells volcanic center, Nevada, and from the Cima volcanic field, California, indicate that the recently reported 20-ka age estimate for the Lathrop Wells volcanic center is incorrect. Instead an age of 119??11 to 141??10 ka is indicated for the Lathrop Wells volcanic center. This age corrected is concordant with the ages determined by two...

Authors

Brent D. Turrin, Duane E. Champion

January 1, 1991

A geological assessment of shoreline erosion, U.S. Great Lakes A geological assessment of shoreline erosion, U.S. Great Lakes

No abstract available.

Authors

D. W. Folger

Woods Hole Coastal and Marine Science Center

January 1, 1991

A Systematic Revision of the Neotropical Catfish Family Ageneiosidae (Teleostei: Ostariophysi: Siluriformes) A Systematic Revision of the Neotropical Catfish Family Ageneiosidae (Teleostei: Ostariophysi: Siluriformes)

Abstract not supplied at this time

Authors

S. J. Walsh

Ecosystems Mission Area, Wetland and Aquatic Research Center

January 1, 1991

Aerial videotape mapping of coastal geomorphic changes Aerial videotape mapping of coastal geomorphic changes

An aerial geomorphic mapping system was developed to examine the spatial and temporal variability in the coastal geomorphology of Louisiana. Between 1984 and 1990 eleven sequential annual and post-hurricane aerial videotape surveys were flown covering periods of prolonged fair weather, hurricane impacts and subsequent post-storm recoveries. A coastal geomorphic classification system was...

Authors

Karolien Debusschere, Shea Penland, Karen A. Westphal, P. Douglas Reimer, Randolph A. McBride

January 1, 1991

Alternative method to Mariotte reservoir system for maintaining constant hydraulic pressure Alternative method to Mariotte reservoir system for maintaining constant hydraulic pressure

Several problems with the Mariotte reservoir system were discovered when it was used to apply a constant water pressure as a boundary condition for a prolonged period. The constant-pressure boundary condition is required for some laboratory experiments to study water flow through porous media. The observed problems were caused by temperature and barometric-pressure fluctuations while the...

Authors

Falah Thamir