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physics.geo-ph1999
Some Wave-Related, Heavy Mineral Placer Deposits
S. J. Childs, F. A. Shillington
Examples of heavy mineral placer deposits are presented in which wave reflection, refraction, diffraction and resonance would appear to have played a major concentrating role. Thei…
physics.geo-ph1999
Incipient Motion Criteria for a Rigid Sediment Grain on a Rigid Surface
S. J. Childs
Criteria for the incipient motion of a rigid body initially resting on a rigid surface are formulated from first principles in this work. A modified Coulomb friction model and an a…