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Records in this collection are classified into one of four categories that best characterizes the data contained within the borehole record. The classifications are: Geotechnical: Boreholes and pits created with the intent to gain a detailed understanding of the subsurface lithology and soil or rock properties therein. These records have additional data beyond lithologic descriptions including penetrometer resistance, shear and strength tests, density measurements, etc. Lithologic borings: Boreholes are drill solely for the purpose of identifying subsurface lithology. Material testing techniques were not used (or the results are not provided) to allow for a more detailed understanding of subsurface material properties....
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The 'Vulture: Placer Evaluation and Recommendations' file is part of the A. F. Budge Mining Ltd. Mining collection. A. F. Budge Mining Ltd., a British company owned by Tony Budge, controlled properties across several western U. S. states and northern Mexico. The company was active in Arizona during the 1980s and into the early 1990s. The collection consists of economic geologic information including maps, logs, reports and records. A few properties make up most of the collection: Vulture, United Verde Extension and Korn Kob.
Categories: Data; Tags: 1980s, 1990s, Arizona, Astor, Black Hawk, All tags...


    map background search result map search result map Collection of boreholes and well logs from Washington State Vulture: Placer Evaluation and Recommendations Collection of boreholes and well logs from Washington State