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DOCUMENTATION_FORMAT: Man_Made
SAMPLE_ID: DWO-3-DEL-1
MATERIAL_TYPE: weathered oil on vegetation
MATERIAL: Weathered oil from the Deepwater Horizon spill
FORMULA:
FORMULA_HTML:
COLLECTION_LOCALITY: Bird's Foot delta of the Mississippi river, Louisiana
COLLECTION_LATITUDE: 29.10928 deg. N
COLLECTION_LONGITUDE: 89.11310 deg. W
DATUM: WGS-84
ORIGINAL_DONOR: Raymond F. Kokaly, USGS
CURRENT_SAMPLE_LOCATION: USGS, Denver
ULTIMATE_SAMPLE_LOCATION:
SAMPLE_DESCRIPTION:
Weathered oil from the Deepwater Horizon spill coating leaves and stems of Phragmites australis. Oiled leaves have a sticky, dark brown and black coating of oil and occur on portions of the P. australis stems. Spectrum measured in the field on August 14, 2010. The reflectance spectrum has strong absorption features centered near 1.72 and 2.30 microns arising from C-H bonds in weathered oil.
The site DWO-3-DEL-1 is described in:
Kokaly, R.F., Heckman, David, Holloway, JoAnn, Piazza, Sarai, Couvillion, Brady, Steyer, G.D., Mills, Christopher, and Hoefen, T.M., 2011,
Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010: U.S. Geological Survey Open-File Report 2011–1022, 124 p.
Available at http://pubs.usgs.gov/of/2011/1022/
Spectrum was used in:
Kokaly, R.F., Couvillion, B.R., Holloway, J.M., Roberts, D.A., Ustin, S.L., Peterson, S.H., Khanna, S., and Piazza, S.C., 2013,
Spectroscopic remote sensing of the distribution and persistence of oil from the Deepwater Horizon spill in Barataria Bay marshes,
Remote Sensing of Environment, Volume 129, Pages 210-230. http://dx.doi.org/10.1016/j.rse.2012.10.028
IMAGE_OF_SAMPLE: 
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
None
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
No additional compositional details available.
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns