Stratigraphic units of shallow unconsolidated deposits in Deadwood, South Dakota, delineated by real-time kinematic surveys

Wyatt S. Tatge; Colton J. Medler; William G. Eldridge; Joshua F. Valder

doi:10.3133/sim3459

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Stratigraphic units of shallow unconsolidated deposits in Deadwood, South Dakota, delineated by real-time kinematic surveys

Wyatt S. Tatge·Colton J. Medler·William G. Eldridge·Joshua F. Valder

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Abstract

The City of Deadwood, South Dakota, has been working on a new archeological investigation in preparation for economic growth and expansion within the city limits, through the Deadwood Historic Preservation Office. During the excavation process, buried artifacts and historical features from the late 1800s have been uncovered. The stratigraphy of shallow unconsolidated deposits in the city of Deadwood, S. Dak., was surveyed on January 29, 2020, using real-time kinematic survey methods and described to identify variations in geologic material, thickness, and depth from the land surface in support of archeological studies by the city. The findings of the study will provide city managers and the public with reliable and impartial information for their use by advancing field or analytical methodology and understanding of hydrologic processes in the study area. The primary excavation site was surveyed, and stratigraphic units were delineated from changes in material properties or depositional environment. The primary excavation site consisted of nine stratigraphic units; however, some units were not consistent along the length of the excavation and pinched out along the cross section. Survey data points also were collected for artifacts and other sites of interest. The shallow surficial geology in the study area was affected by human construction, fires, and flooding.

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Source-reported bounding extent: 44.364237624976326° to 44.38558741441454° latitude; -103.74698638916016° to -103.71814727783202° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Wyatt S. Tatge, Colton J. Medler, William G. Eldridge, Joshua F. Valder. 2020-08-25. Stratigraphic units of shallow unconsolidated deposits in Deadwood, South Dakota, delineated by real-time kinematic surveys. https://doi.org/10.3133/sim3459

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