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Questions and Answers
What makes it possible to make quantitative measurements of mineral abundances using the PSD-XRD technique?
What makes it possible to make quantitative measurements of mineral abundances using the PSD-XRD technique?
- Fluorescence of iron oxide phases (correct)
- Water immersion of samples
- Bulk density measurements
- Pulverizing the material
Which technique is recommended for determining the density of constituent mineral grains in the given text?
Which technique is recommended for determining the density of constituent mineral grains in the given text?
- Bulk density measurements in pit 1 and pit 2
- Grinding the samples as recommended by Brimhall and Dietrich (1987) (correct)
- PSD-XRD technique
- Water immersion technique
How were bulk density measurements conducted in situ in the mines?
How were bulk density measurements conducted in situ in the mines?
- By using the PSD-XRD technique
- By weighing excavated samples before and after drying in air (correct)
- By filling excavated cavities with polythene
- By monitoring water immersion of samples
What is necessary to calculate bulk density using the procedure described in the text?
What is necessary to calculate bulk density using the procedure described in the text?
Why is conventional XRD not suitable for making quantitative measurements of mineral abundances in iron-rich samples?
Why is conventional XRD not suitable for making quantitative measurements of mineral abundances in iron-rich samples?
What was done after each rock type's bulk sample was excavated from the mine bench?
What was done after each rock type's bulk sample was excavated from the mine bench?
Which reference is suggested for further details on the PSD-XRD technique?
Which reference is suggested for further details on the PSD-XRD technique?
What was done after weighing the bulk samples before and after drying in air?
What was done after weighing the bulk samples before and after drying in air?
What is required to determine the density of constituent mineral grains?
What is required to determine the density of constituent mineral grains?
What was lined with polythene after each excavation according to the text?
What was lined with polythene after each excavation according to the text?
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