Mineral Resources On-Line Spatial Data: trenching

Mineral Resources On-Line Spatial Data

Mineral Resources > Online Spatial Data > Catalog > Methods > Field methods > Field sampling

Trenching

Field method used by earth scientists to study the underground structure of an area. A long narrow ditch is dug to locate geologic features, such as a fault.

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Transect sampling

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Geochemical analysis of soils and sediments, Coeur d'Alene drainage basin, Idaho: Sampling, analytical methods, and results [New Window]: Chemical composition of sediments and soils are of interest because of the potential for human and wildlife health impacts from high metal contents due to over 100 years of mining activity.

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