Money, Mississippi and Lake Poinsett Dam, Arkansas, Grain-Size Analysis
Dates
Publication Date
2020-07-14
Start Date
2017-06-01
End Date
2019-09-01
Citation
Adams, R.F., 2021, Money, Mississippi and Lake Poinsett Dam, Arkansas, grain-size analysis: U.S. Geological Survey data release, https://doi.org/10.5066/P9I88YMU.
Summary
During the winter of 2016 and the summer of 2018, the U.S. Geological Survey, Lower Mississippi-Gulf Water Science Center collected sediment cores for grain-size analysis in Mississippi and Arkansas. In a farm field adjacent to the Tallahatchie River near Money, Mississippi, 13 continuous sections of approximately 5-cm (2-in) diameter by approximately 1.5-m (5-ft) long sediment cores were extracted to better understand the sediment within the Mississippi River Valley alluvial aquifer. These data were used to support ongoing aquifer testing activities by the U.S. Department of Agriculture’s Agricultural Research Service. Lake Poinsett Dam is an earthen embankment dam located near Harrisburg, AR. In May of 2018, the U.S. Geological Survey, [...]
Summary
During the winter of 2016 and the summer of 2018, the U.S. Geological Survey, Lower Mississippi-Gulf Water Science Center collected sediment cores for grain-size analysis in Mississippi and Arkansas. In a farm field adjacent to the Tallahatchie River near Money, Mississippi, 13 continuous sections of approximately 5-cm (2-in) diameter by approximately 1.5-m (5-ft) long sediment cores were extracted to better understand the sediment within the Mississippi River Valley alluvial aquifer. These data were used to support ongoing aquifer testing activities by the U.S. Department of Agriculture’s Agricultural Research Service. Lake Poinsett Dam is an earthen embankment dam located near Harrisburg, AR. In May of 2018, the U.S. Geological Survey, Lower Mississippi-Gulf Water Science Center collected 9 sections of approximately 5-cm (2-in) diameter by approximately 1.5-m (5-ft) long sediment cores across three locations on the dam. These cores provided ground-truth information to ongoing geophysical investigations of the dam (see cross references). Both of these studies also collected coincident borehole geophysical or direct push logs. These logs can be found on the U.S. Geological Survey's Borehole Geophysical Log Archive: Log Archiver (see cross references)
These measurements will be used to create lithologic models of those sediments which can be used to calibrate groundwater flow models and classify geophysical data into a geologic context.
