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Seismic-refraction study of suspected drift-filled bedrock valleys in Ramsey County, Minnesota
D. G. Woodward
1985, Water-Resources Investigations Report 85-4107
Seismic-refraction surveys were made across suspected buried, drift-filled bedrock valleys believed to underlie two sites of known ground-water contamination the Twin Cities Army Ammunition Plant (TCAAP) near New Brighton and the former Koppers Coke Plant in St. Paul, Ramsey County, Minnesota. Refraction data were collected along two lines at each...
Reconnaissance geochemical exploration of plutons of syenite and shonkinite, southern Asir, Kingdom of Saudi Arabia
W.C. Overstreet, A.B. Assegaff, M.A. Hussain, M.I. Naqvi, G.I. Selner, J.J. Matzko
1985, Open-File Report 85-7
Reconnaissance geochemical exploration for rare metals in plutons of syenite and shonkinite disclosed generally less than 20 ppm Nb in rocks, wadi sediments, and concentrates. The sparsity of Nb is accompanied by low values for La, Sn, W, Y, and Zr and relatively high but insignificant values for Be and...
Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and transition zone of the Potomac Estuary, Maryland, Virginia, and the District of Columbia, 1983-1984
Virginia Carter, N. B. Rybicki, R. T. Anderson, T. J. Trombley, G.L. Zynjuk
1985, Open-File Report 85-82
Data on the distribution and abundance of submerged aquatic vegetation were collected in the tidal Potomac River and transition zone of the Potomac Estuary during 1983 and 1984. Plant species were identifed on transects. Water-quality characteristics measured include temperature, specific conductance, and Secchi depth. Maps were made of the distribution...