Clark and others 2007 USGS Data Series 231
Spectral Library splib06a Sample Description

(For further information on spectroscopy, see: http://speclab.cr.usgs.gov)

TITLE: Kaolin_Smect H89-FR-2 .5Kaol DESCRIPT

DOCUMENTATION_FORMAT: MIXTURE

SAMPLE_ID: H89-FR-2

MIXTURE_TYPE: Intimate

MIXTURE: Kaolinite/Smectite (50% Kaolinite, Kaolinite-Serpentine group)

FORMULA: Al2Si2O5(OH)4 + (Na,Ca)0.33(Al,Mg)2Si4O10(OH)2*nH2O

FORMULA_HTML: Al₂Si₂O₅(OH)₄ + (Na,Ca)_0.33(Al,Mg)₂Si₄O₁₀(OH)₂•nH₂O

COLLECTION_LOCALITY: Paris Basin, France

ORIGINAL_DONOR: Phoebe Hauff, Fred Kruse CSES/CIRES

CURRENT_SAMPLE_LOCATION: CSES/CIRES, Univ. of CO, Boulder

ULTIMATE_SAMPLE_LOCATION: CSES/CIRES, Univ. of CO, Boulder

SAMPLE_DESCRIPTION:

Kaolinite/smectite clays are produced as transitional phases as smectite weathers to kaolinite. This sample is from the Argiles Plastique Formation of the Paris Basin. This formation contains a paragenetic sequence from smectite to kaolinite.

Hauff, P.L., F.A. Kruse, and Medard Thiry, 1990, Spectral identification and characterization of kaolinite/smectite clays in weathering environments. Proceedings of the Fifth Australian Remote Sensing Conference, Perth, Australia, pp. 898-905.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

XRD was used to determine the percent kaolinite. In this case, the sample is 50% kaolinite.

Hauff, P.L., F.A. Kruse, and Medard Thiry, 1990, Spectral identification and characterization of kaolinite/smectite clays in weathering environments. Proceedings of the Fifth Australian Remote Sensing Conference, Perth, Australia, pp. 898-905.

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1b2b3b4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

LIB_SPECTRA_HED:	where	Wave Range	Av_Rs_Pwr	Comment
LIB_SPECTRA:	splib04a r 2643	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib05a r 8513	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib06a r 25636			g.s.=
LIB_SPECTRA:	splib06a r 25648			g.s.=