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  4. Investigating the effects of broad ion beam milling to sedimentary organic matter

Investigating the effects of broad ion beam milling to sedimentary organic matter

Dates

Publication Date
Time Period
2020

Citation

Croke, Mary R, Hackley, Paul C, Jubb, Aaron M, Valentine, Brett J, Hatcherian, Javin J, Yu, Jing-Jiang, and Podrazky, William K, 2020, Investigating the effects of broad ion beam milling to sedimentary organic matter: U.S. Geological Survey data release, https://doi.org/10.5066/P9F59WBT.

Summary

To test if reflectance increases to sedimentary organic matter (vitrinite) caused by broad ion beam (BIB) milling were related to molecular aromatization and condensation, we used Raman and Fourier transform infrared (FTIR) spectroscopies to evaluate potential compositional changes in the same vitrinite locations pre- and post-BIB milling. The same locations also were examined by atomic force microscopy (AFM) to determine topographic changes caused by BIB milling (as expressed by the areal root-mean-square roughness parameter Rq). Samples consisted of four medium volatile bituminous coals. We used a non-aggressive BIB milling approach with conditions of [(5 min, 4 keV, 15°incline, 360° rotation at 25 rpm and 100% focus (1.5 kV discharge; [...]

Contacts

Point of Contact :
Paul C Hackley, Eastern Energy Resources Science Center
Originator :
Mary R Croke, Paul C Hackley, Aaron M Jubb, Brett J Valentine, Javin J Hatcherian, Jing-Jiang Yu, William K Podrazky
Metadata Contact :
Eric A Morrissey, Eastern Energy Resources Science Center
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Geology, Energy & Minerals Science Center
USGS Mission Area :
Energy and Minerals

Attached Files

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Product_10.5066P9F59WBT_METADATA.xml
Original FGDC Metadata
View 		60.54 KB application/fgdc+xml
Raman post-milling.csv 3.38 KB text/csv
Raman pre-milling.csv 3.52 KB text/csv
Table 1. Pre-post milling VRo.csv 596 Bytes text/csv
Table 2. Pre-post milling FTIR.csv 2.29 KB text/csv
Table 3. Pre-post milling Raman.csv 801 Bytes text/csv
Table 4. Pre-post milling SqHt.csv 1.17 KB text/csv

Purpose

Data were obtained in order to measure increases to reflectance in sedimentary organic matter in relation to molecular aromatization and condensation in coal samples caused by broad ion beam milling.

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Communities

  • Geology, Energy & Minerals (GEM) Science Center
  • USGS Data Release Products

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9F59WBT

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