Revision History for U.S. Geological Survey Scientific Investigations Report 2019-5123

By Mark A. Kirschbaum, Thomas M. Finn, Christopher J. Schenk, and Sarah J. Hawkins

Lithologic Descriptions, Geophysical Logs, and Source-Rock Geochemistry of the U.S. Geological Survey Alcova Reservoir AR𢴏3 Core Hole, 
Natrona County, Wyoming
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Posted online December 30, 2019

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Revised and reposted November 24, 2021

In Table 1, the following changes were made. 

Mowry Shale
Depth 250.10, HI changed from 304 to 347; OI changed from 13 to 15; and S1/TOC changed from 11 to 12. 
Depth 263.20, HI changed from 427 to 460 and S1/TOC changed from 16 to 17.
Depth 282.80, HI changed from 368 to 383; OI changed from 8 to 9; and S1/TOC changed from 22 to 23.

Shell Creek Shale equivalent
Depth 431.70, HI changed from 31 to 35; OI changed from 16 to 18; and S1/TOC changed from 12 to 13.

PI, production index [S1/S1+S2]; TOC, total organic carbon in weight percent; HI, hydrogen index; OI, oxygen index]

Figure 6. 

Four data points were modified slightly, and the figure was replaced to show the corrected Hydrogen Index. 

Figure 8. 

Four data points were modified slightly, and the figure was replaced. 

References Cited

The following reference was updated to show the revised version number. 

Finn, T.M., Kirschbaum, M.A., and Schenk, C.J., 2019b, Total organic carbon and pyrolysis analysis data for the U.S. Geological Survey Alcova AR𢴏3 core hole, Natrona County, Wyoming (ver. 1.1, November 2021): U.S. Geological Survey data release, https://doi.org/10.5066/P9VLAKVG. 

Associated Data

The associated data release for these updates has been corrected with the revised data and is available at https://doi.org/10.5066/P9VLAKVG.