Sample Description USGS Spectral Library Version 7

USGS Spectral Library Version 7 Sample Description

Kokaly, R.F., Clark, R.N., Swayze, G.A., Livo, K.E., Hoefen, T.M., Pearson, N.C., Wise, R.A., Benzel, W.M., Lowers, H.A., Driscoll, R.L., and Klein, A.J., 2017, USGS Spectral Library Version 7: U.S. Geological Survey Data Series 1035, 61 p., https://doi.org/10.3133/ds1035
_{For more information on the library, see:
local link
web link}

TITLE: Plastic GGA-54 Grnhouse Roof DESCRIPT

DOCUMENTATION_FORMAT: Man_Made

SAMPLE_ID: GGA-54

MATERIAL_TYPE: Plastic

MATERIAL: Plastic

FORMULA: CH4 compound

FORMULA_HTML: CH₄ compound

COLLECTION_LOCALITY: Canon City, Colorado, USA

ORIGINAL_DONOR: Gregg Swayze and Andrea Gallagher

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Small piece of a weathered translucent green fiberglass green house roof

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EPMA, ICP(Trace), WChem

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

Spectrum has a steep absorption edge centered at 0.479 microns. The spectrum levels off past 0.7 microns and begins to slope downward toward longer wavelengths past 1.31 microns. Superimposed on this downward slope are about 14 absorptions with the strongest at 1.6805 microns.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns