Epigene secondary deposits may form either subaerially
in the vadose zone, commonly due to variations in void microclimate, or subaqueously in the phreatic zone, generally associated with changes in water chemistry (Ford & Williams 2007).
considering the lithology of the slab on which the trace is preserved, the lack of subaerially
produced sedimentary structures, and the probable gill imprints, we suggest that the body imprint was produced subaqueously.
The higher levels of the succession, comprising the Napak Member, in which the sites of Napak I, IV, V, IX and XV occur, show few if any signs of aquatic deposition, being, in large measure, composed of subaerially
deposited volcanic ash and immature palaeosols.
The cyclic model is tested by stratigraphically examining two sedimentary sequences below the Warren Beach, which would have been subaerially
exposed during the Ypsilanti lowstand before being resubmerged.
Both the Caribbean and Madagascar LIPs erupted around OAE 2 were emplaced either subaerially
or in shallow water, whereas the Ontong Java Plateau, which formed mainly during OAE 1a, erupted mainly in a deep submarine setting.
Seaward of the sand bar there is a wave-washed shelf composed of cobbles and sediment, part of which is exposed subaerially
at low tides.
leprosula was largely formed during the middle Pleistocene and was subsequently modified by eastward migration across the subaerially
exposed Sunda Shelf.
Considering the shell fossils from the Hino River, it was inferred that the Hino plain was originally an intertidal flat dominated by marginal marine sedimentation that subsequently became damp, subaerially
Along the banks of the river and estuary, it is possible that a landslide could commence subaerially
and enter the water catastrophically, as suggested for the Betsiamites slide of 1663 (Cauchon-Voyer et al.
1995: Origin of anomalous rare-earth element and yttrium enrichments in subaerially
exposed basalts: Evidence from French Polynesia.
exposed Late-Quaternary basinal shelf of the inner Mersin Bay, Eastern Mediterranean: Paleoenvironmental evidence.
We agree with Plummer & Gostin's (1981) conclusion that no single feature of a shrinkage crack can distinguish between subaerially
formed mudcracks (desiccation cracks) and subaqueously formed synaeresis cracks.