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High Microscale Variability in Raman Thermal Maturity Estimates from Shale Organic Matter - Data Release

Dates

Publication Date
Time Period
2017-10-03
Time Period
2018-02-08
Time Period
2018-02-13
Time Period
2018-06-18

Citation

Jubb, A.M., Botterell, P.J., Birdwell, J.E., Burruss, R.C., Hackley, P.C., Valentine, B.J., and Hatcherian, J.J., 2018, High Microscale Variability in Raman Thermal Maturity Estimates from Shale Organic Matter - Data Release: U.S. Geological Survey data release, https://doi.org/10.5066/P9D5ASO0.

Summary

Here the spatial variation in Raman estimates of thermal maturity within individual organic domains from several shale geologic reference materials originating from the Boquillas, Marcellus, Niobrara, and Woodford Formations are assessed from the respective Raman response. We show that for all four shales the thermal maturity parameters extracted from Raman spectra by iterative peak fitting can vary widely across distances of ≤5 µm within the same organic domain.

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Attached Files

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T1_Representative Raman spectrum from the ShNIO sample with Lorentzian fit, fit residuals, and cubic baseline.csv 16.45 KB
T2_Position of the D1 peak center and the subsequent extracted Raman band separation as a function of wavelength.csv 2.95 KB
T3_Average Raman spectra from each shale GRM collected across a representative region of interest.csv 46.22 KB
T4_Raman band separation verus D1 over G intensity ratio across a representative region of interest for each shale GRM.csv 5.1 KB
Product_10.5066P9D5ASO0_METADATA.xml
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26.65 KB

Purpose

Data were collected to characterize the heterogeneity of Raman thermal maturity estimates from shale organic matter.

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Communities

  • Energy Resources Program
  • USGS Data Release Products

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Additional Information

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doi https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9D5ASO0

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