Paleo-water depth grids for the 3D petroleum systems model of the Williston Basin, USA
Description
Paleo-water depth is an important component of modeling surface temperatures through time. Paleo-water depth values represent the elevation of the sediment-water interface relative to global mean sea level at a particular point in geologic time. In most of the model time steps, paleo-water depth values were treated uniformly (single value) across the modeled area of interest, as a simplifying assumption. Most of the model layers were deposited in marine conditions, where the sediment-water interface was below mean sea level (positive paleo-water depths); however, the ground surface of the Williston Basin is now several thousand feet above sea-level, and the Cenozoic model layers were likely deposited in continental conditions, where the sediment-water interface represents paleo-topography (negative paleo-water depths). The model uses the present-day topography to interpolate paleo-water depth between the present-day topography and the uniform paleo-water depth at the 70 Ma time step in the model. The interpolation was generated at three time steps: 50, 43, and 20 Ma time steps, where each of these interpolations is describe with an ASCII grid of map-varying values of paleo-water depth. This is a child item of a larger data release titled "Data release for the 3D petroleum systems model of the Williston Basin, USA".
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.6447f997d34ee8d4aded3b78.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P9N7O1OT |
Tags
- montana
- province-31
- tectonic-processes
- bathymetry
- south-dakota
- cedar-creek-anticline
- geology
- nesson-anticline
- bakken
- paleo-water-depth
- geoscientificinformation
- usgs-6447f997d34ee8d4aded3b78
- north-dakota
- williston-basin