Land-use in the Moorcroft and Keyhole Reservoir areas, Crook County, Wyoming

There are no author-identified significant results in this report

ERTS-1 study of the geology of the ice-free valleys of Antarctica

There are no author-identified significant results in this report

Location of geologic structures from interpretation of ERTS-1 imagery, Carbon County, Wyoming

The author has identified the following significant results. Possible geologic structures in the basin sediments of Carbon County and vicinity were located by interpretation of ERTS-1 imagery. These same structures are not evident on existing conventional geologic maps of the area. Subsequent field checks confirmed much of the geologic interpretation, but revealed that two apparent closed structures identified on the ERTS-1 imagery were actually topographic pseudostructures in flat or homoclinal sediments. Stereoscopic coverage (where available) allows the interpreter to avoid such misinterpretations

Railroads in the Old South

Aaron W. Marrs challenges the accepted understanding of economic and industrial growth in antebellum America with this original study of the history of the railroad in the Old South. Drawing from both familiar and overlooked sources, such as the personal diaries of Southern travelers, papers and letters from civil engineers, corporate records, and contemporary newspaper accounts, Marrs skillfully expands on the conventional business histories that have characterized scholarship in this field. He situates railroads in the fullness of antebellum life, examining how slavery, technology, labor, social convention, and the environment shaped their evolution. Far from seeing the Old South as backward and premodern, Marrs finds evidence of urban life, industry, and entrepreneurship throughout the region. But these signs of progress existed alongside efforts to preserve traditional ways of life. Railroads exemplified Southerners' pursuit of progress on their own terms: developing modern transportation while retaining a conservative social order.Railroads in the Old South demonstrates that a simple approach to the Old South fails to do justice to its complexity and contradictions

Becoming Bourgeois: Merchant Culture in the South, 1820-1865

Examining Southern Merchants Perhaps no clichΘ in book reviewing is more tired than the one which announces that a book has filled a gap in the historiography. Yet Frank Byrne has genuinely performed this service, to our lasting benefit, with Becoming Bourgeois. Byrne, who teaches a...

Application LANDSAT imagery to geologic mapping in the ice-free valleys of Antarctica

The author has identified the following significant results. Studies in the Ice-Free Valleys are resulted in the compilation of a sizeable library of maps and publications. Rock reflectance measurements were taken during the Antarctic summer of 1973. Spectral reflectance of rocks (mostly mafic lava flows) in the McMurdo and Ice-Free Valleys areas were measured using a filter wheel photometer equipped to measure reflectances in the four Landsat bands. A series of samples were collected at regular intervals across a large differentiated, mafic sill near Lake Vida. Chemical analyses of the sample suggest that the tonal variations in this sill are controlled by changes in the iron content of the rock. False color images were prepared for a number of areas by the diazo method and with an optical multispectral biviewer. These images were useful in defining boundaries of sea ice, snow cover, and in the study of ablating glaciers, but were not very useful for rock discrimination

Remote sensing applied to land-use studies in Wyoming

Impending development of Wyoming's vast fuel resources requires a quick and efficient method of land use inventory and evaluation. Preliminary evaluations of ERTS-1 imagery have shown that physiographic and land use inventory maps can be compiled by using a combination of visual and automated interpretation techniques. Test studies in the Powder River Basin showed that ERTS image interpretations can provide much of the needed physiographic and land use information. Water impoundments as small as one acre were detected and water bodies larger than five acres could be mapped and their acreage estimated. Flood plains and irrigated lands were successfully mapped, and some individual crops were identified and mapped. Coniferous and deciduous trees were mapped separately using color additive analysis on the ERTS multispectral imagery. Gross soil distinctions were made with the ERTS imagery, and were found to be closely related to the bedrock geology. Several broad unstable areas were identified. These were related to specific geologic and slope conditions and generally extended through large regions. Some new oil fields and all large open-cut coal mines were mapped. The most difficult task accomplished was that of mapping urban areas. Work in the urban areas provides a striking example of snow enhancement and the detail available from a snow enhanced image

Some illustrations of the advantages of improved resolution in geologic studies

There are no author-identified significant results in this report