 |
| Location: |
Data Metallogenica Centre, Adelaide, South Australia |
| Annotation: |
Spectral Measurement Strategy. A computer-controlled
ASD FieldSpec-Pro spectrometer and a robotic x/y table scan
each DM plate in ~4 minutes. Four or more spectra, each covering
an 8mm field of view, are collected from each specimen. This
allows tests of reproducibility, picks up specimen heterogeneity,
and permits specimen averaging. The locations of all spectra
are recorded and etched into JPEG images of each plate. Spectra
cover the 350-2500 nm range in 2048 channels, each integrated
for 2 seconds, ensuring high signal-to-noise ratio. Spectra
are calibrated to Spectralon™. This spectral range allows
analysis of oxide, hydroxyl (e.g. clays and phyllosilicates),
sulphate and carbonate-bearing minerals and some sulphides.
The whole DM collection is being analysed in this way. It
does not permit analysis of quartz, feldspars, garnets, olivines
or pyroxenes. This requires longer wavelength sensing, not
yet available. |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
September 2003 |
| File size: |
68.94 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimens 1-20. Spectral overview
showing major features and spectral variability |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
112.90 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 1. Spectral mineralogy:
unknown. Dark and noisy. |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
84.20 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 2. Spectral mineralogy:
illite, Mg-chlorite/biotite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
84.54 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 3. Spectral mineralogy:
glue contaminant |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
85.73 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 4. Spectral mineralogy:
aluminium plate. |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
83.72 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 5. Spectral mineralogy:
Mg-chlorite/biotite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
83.19 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 6. Spectral mineralogy:
Mg-chlorite/biotite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
82.90 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 7. Spectral mineralogy:
smectite/illite, Mg-chlorite/biotite, trace kaolinite, goethite.
|
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
85.11 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 8. Spectral mineralogy:
smectite/illite, Mg-chlorite/biotite, Goethite + Kaolinite
trace |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
84.50 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2466, Specimen 9. Spectral mineralogy:
smectite/illite, Mg-chlorite/biotite, minor kaolinite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
83.30 Kb | |
|
