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Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

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Analysis of mixed-layer clay mineral structures

Among the enormously abundant natural occurrences of clay minerals, many examples are encountered in which no single specific crystallization scheme extends through a single ultimate grain. The characterization of such assemblages becomes an analysis of the distribution of matter within such grains, rather than the simple identification of mineral species. It having become established that the par
Authors
W. F. Bradley

Relation of suspended-sediment concentration to channel scour and fill

It is known that during the passage of a flood the channel of an alluvial stream scours and fills with considerable rapidity. Though such changes may be random, it seems more likely that there is a definite pattern of channel change directly related both to discharge and to the sediment load provided to the river by the drainage basin.In a study by the authors [1] an analysis was made of concurren
Authors
Luna Bergere Leopold, Thomas Maddock

The measurement of total sediment load in alluvial streams

The measurement of the total sediment load transported by streams that flow in alluvial channels has been a perplexing problem to engineers and geologists for over a century. Until the last decade the development of equipment to measure bed load and suspended load was carried on almost independently, and without primary consideration of the fundamental laws governing the transportation of fluvial
Authors
P.C. Benedict, D.Q. Matejka

The use of soils and paleosols for interpreting geomorphic and climatic history of arid regions

The study of modern surface soils, and ancient weathering zones, which occur either buried or as surface relicts, has contributed materially to understanding the complex events of the glacial and post-glacial period both in glaciated areas and in regions not influenced by glaciation. Most work of this kind in the United States has been done by geologists.Numerous Pleistocene geologists have noted
Authors
John Miller, Luna Bergere Leopold

Absorption characteristics of the dithizone mixed color system: A theoretical treatment

[No abstract available]
Authors
R. G. Milkey

Silicate analysis

[No abstract available]
Authors
R.M. Fowler, W.M. Hazel, J.P. Highfill, R. E. Stevens

Stratigraphy of the outcropping formations in southern Florida

The geology of southern Florida, except for the Pliocene deposits, is not widely known among geologists and paleontologists. The popular concept is that there are very few outcrops in this part of the State. It is true that there are very few natural exposures, but the dredging of rivers and the construction of canals have made many exposures. The Tamiami formation is the only formation of Miocene
Authors
Melvin Carroll Schroeder, Nevin Douglas Hoy

An analysis of the 1949-50 fowl cholera epizootic in Texas panhandle waterfowl

No abstract available.
Authors
George A. Petrides, Charles R. Byrant

Recent findings in relation to the control of botulism in waterfowl

No abstract available.
Authors
Don R. Coburn, E. R. Quortrup