In contrast, the authors hypothesize that subaerially
weathered bone, which includes sun bleaching of bone surfaces (Beary 2005; Behrensmeyer 1978; Junod & Pokines 2014), may in some situations be easier to find than unbleached bones due to the white color contrasting with the darker background surface.
It appears that the Lanna area was subaerially
exposed sometime during the earliest Ordovician.
Southern Negros at this time was still partly submerged underwater and the Southern Negros Formation, which formed as a result of the volcanic activity of the palaeo-CDN, was deposited underwater in Puhagan (central part of the field) but subaerially
in the west .
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