Concentrations of pumice clasts towards the base form trains of clasts that are traceable along the length of outcrops.
We can therefore confidently assume that transgression proceeded well beyond all of these limiting outcrops.
If o lightning impacts on an outcrop with abundant cracks and fractures, the strong currents will cause moisture in the cracks to evaporate instantaneously.
Distances are approximations based on known outcrops of materials.
Therefore, alteration conditions must always be studied individually in each outcrop and cannot be assumed to be spatially invariant.
The terrain at the western end of the hills consists of a plateau region with sandstone outcrops and slow-flowing streams.
It is obvious that the lightning hit and blasted an outcrop of metacherts.
These can be compared with what we see preserved in the field, thus enhancing our interpretations of outcrop geology.
