 |
| 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 a 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 2465, Specimens 1-20. Spectral Overview
showing major features and spectral variability. |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
112.21 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 1, Spectral Mineralogy.
Weak muscovite, chlorite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
86.23 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 2, Spectral Mineralogy.
Muscovite, Mg-chlorite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
84.02 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 3, Spectral Mineralogy.
Muscovite (Na-enriched), Mg-chlorite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
85.50 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 4, Spectral Mineralogy.
Intermediate chlorite, illite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
85.16 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 5, Spectral Mineralogy.
Poorly crystalline kaolinite / halloysite, +/- illite, chrysocolla
& chlorite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
88.42 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 6, Spectral Mineralogy.
Poorly crystalline kaolinite / halloysite, minor chlorite,
chrysocolla |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
88.13 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 7, Spectral Mineralogy.
Illite/smectite, chlorite, trace of green copper mineral |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
85.97 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 8, Spectral Mineralogy.
Mg-chlorite, illite |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
84.02 Kb | |
|
 |
| Location: |
Batu Hijau, Sumbawa Island, Indonesia |
| Annotation: |
Plate 2465, Specimen 9, Spectral Mineralogy.
Illite/smectite, intermediate chlorite, trace of copper mineral |
| Source: |
Jon Huntington, CSIRO Exploration & Mining |
| Date: |
February 2004 |
| File size: |
84.61 Kb | |
|
