• journal_title：Journal of the Geological Society
• Contributor：ANDREW HURST ; ANDREW C. MORTON
• Publisher：Geological Society of London
• Date：2001-
• Format：text/html
• Language：en
• Identifier：10.1144/jgs.158.3.401
• journal_abbrev：Journal of the Geological Society
• issn：0016-7649
• volume：158
• issue：3
• firstpage：401
• section：Specials

Ratios of abundance of hydraulically and diagenetically equivalent heavy minerals (apatite:tourmaline, garnet:zircon) from deep-water sandstones, of similar age and derived from the same overall source terrain, have contrasting trends. The differences are explained by contrasting sediment transport paths. Deep-water sandstones with fluctuating heavy mineral ratios are inferred to be derived directly from alluvial basins, bypassing any contemporaneous shallow marine shelf. Deep-water sandstones with homogeneous heavy mineralogy are inferred to be fed by sediment that originally accumulated on shallow marine shelves but was subsequently mixed.