solifluction - spudding shoe
- spectrophotometry
- spectroscope
- spectroscopy
- spectroscopy log
- spectroscopy logging
- spectrum
- spectrum line intensity
- specular alabaster
- specular coal
- specular hematite
- specular iron ore
- specular ore
- specular reflector
- specular stone
- specularite
- speed
- speed of paper
- speed of propagation
- speed of registration
- speed of transmission