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Earliest Phanerozoic or latest Proterozoic fossils from the Arabian Shield, Kingdom of Saudi Arabia
Preston Cloud, S.M. Awramik, Karen Morrison, D.G. Hadley
1979, Open-File Report 79-1186
We report here the first biologically definable fossils from pre-Saq (pre-Middle Cambrian) rocks of the Arabian Shield. They include the distinctive helically coiled tubular filaments of the oscillatorialean blue-green alga Obruchevella parva as well as two size classes of spheroidal unicells of uncertain affinity. Also present is the conical stromatolite...
Particle size of sediments collected from the bed of the Amazon River and its tributaries in May and June 1977
Carl F. Nordin, R.H. Meade, W. F. Curtis, N.J. Bosio, B. M. Delaney
1979, Open-File Report 79-329
One-hundred-eight samples of bed material were collected from the Amazon River and its major tributaries between Belem, Brazil , and Iquitos, Peru. Samples were taken with a standard BM-54 sampler or with pipe dredges from May 18 to June 5, 1977. Most of the samples have median diameters in the...
Program objectives for the National Water Data Exchange (NAWDEX) for fiscal year 1980
Melvin D. Edwards
1979, Open-File Report 80-11
This report describes the proposed program objectives of the National Water Data Exchange (NAWDEX) for fiscal year 1980. These include NAWDEX program administration, NAWDEX services, water-data indexing activities, systems development, training, and the development of recommended methods for the handling and exchange of water data. ...