Experimental flume study of the deposition of heavy minerals in a simulated Witwatersrand sandstone unconformity

Economic Geology

Volumn 94, Issue 5, 1999, Pages 671-688

  James, C S ^a   Minter, W E L ^b  

^a UNIVERSITY OF THE WITWATERSRAND   (South Africa)

^b UNIVERSITY OF CAPE TOWN   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

DEPOSITION; FLUME EXPERIMENT; GOLD; HEAVY MINERAL; MINERALIZATION; PLACER DEPOSIT;

EID: 0033391417     PISSN: 03610128     EISSN: None     Source Type: Journal    
DOI: 10.2113/gsecongeo.94.5.671     Document Type: Article

References (11)

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2. Dietrich, W.E., 1982, Settling velocity of natural particles: Water Resources Research, v. 18, p. 1615-1626.
3. James, C.S., 1990, Prediction of entrapment conditions for nonuniform, noncohesive sediments: Journal of Hydraulic Research, v. 28, p. 25-41.
4. James, C.S., Lymberopoulos, G., and Scalla, P., 1990, An experimental study of the effect of bed grain roughness on sediment sorting by entrapment: Water SA, v. 16, no. 4, p. 257-264.
5. Li, M.Z., and Komar, P.D., 1992, Selective entrainment and transport of mixed size and density sands: Flume experiments simulating the formation of black-sand placers: Journal of Sedimentary Petrology, v. 62, p. 584-590.
6. Minter, W.E.L., 1976, Detrital gold, uraninite and pyrite concentrations related to sedimentology in the Precambrian Vaal reef placer, Witwatersrand, South Africa: ECONOMIC GEOLOGY, v. 71, p. 157-175.
7. Minter, W.E.L., Goedhart, M., Knight, J., and Frimmel, H.E., 1993, Morphology of Witwatersrand gold grains from the Basal reef: Evidence for their detrital origin: ECONOMIC GEOLOGY, v. 88, p. 237-248.
8. Slingerland, R.L., 1977, The effects of entrainment on the hydraulic equivalence relationships of light and heavy minerals in sand: Journal of Sedimentary Petrology, v. 47, p. 753-770.
9. Slingerland, R.L., 1984, Role of hydraulic sorting in the origin of fluvial placers: Journal of Sedimentary Petrology, v. 54, p. 137-150.
10. Steidmann, J.R., 1982, Size-density sorting of sand-size spheres during deposition from bedload transport and implications concerning hydraulic equivalence: Sedimentology, v. 29, p. 877-883.
11. Vanoni, V.A. and Brooks, N.H., 1957, Laboratory studies of the roughness and load of alluvial streams: California Institute of Technology, Pasadena, California, Sedimentation Laboratory Report no. E68.