Spectrum

SWIR reflectance spectrum of the extremely altered minerals contained in Anorthosite (NM6), measured on cut slab using the SWIR-640 camera (HySpex)

Title
SWIR reflectance spectrum of the extremely altered minerals contained in Anorthosite (NM6), measured on cut slab using the SWIR-640 camera (HySpex)
DOI
10.26302/SSHADE/EXPERIMENT_MB_20230522_0001
Data reference
Barthez, Marie (2022): VNIR and SWIR spectra of terrestrial feldspathic rocks and powders (sample NR1 as an example). SSHADE/Mirabelle (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_MB_20230522_0001
Database
Experimentalists
Experiment type
laboratory measurement
Type
reflectance factor
Intensity unit
no unit
Comments
Measurements done using 30cm lense. Spatial resolution = 130µm.
Instrument
HySpex SWIR 640 – bidirectional reflection Near-Infrared (960-2500 nm)
Standard medium
unknown
Observation mode
spectrum
Spectral range type(s)
Vis, NIR
Valid spectral range(s)
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge
#1 960.0 - 2500.0 4.38 1.4
Comments
Measurements were made between 960nm and 2500nm.
Observation geometry
bidirectional
Observation mode
fixed angles
Resolution observation
1.4°
Observation mode
roi averaged
Objective type
30 cm
Resolutions
130.0 ${\mu}m$
Comments
The SWIR-640 camera was used to acquire the spectrum.
Name
Anorthosite (NM6) sugar
Comments
Anorthosite (NM6) sample cut in the form of a sugar.
Primary material(s)
Primary constituent(s)
Experiment
VNIR and SWIR spectra of terrestrial feldspathic rocks and powders (sample NR1 as an example)
Date begin
2022-05-19
Release date
2023-07-13 14:26:50 UTC+0000
Version (Date)
#1 (2023-07-13 14:26:50 UTC+0000, Updated: 2023-07-13 14:26:50 UTC+0000)
History
Date Mode Version Status Comments
2023-07-12 20:55:51 UTC+0000 first import #1 valid version
Analysis
The camera has been calibrated using a reference panel (10% reflectance, Pro-Lite) in the same geometry and conditions. The average spectrum of the Extremely Altered Minerals class has been obtained by SAM (ENVI) classification in the SWIR domain.
Quality flag
5
Validator(s)