To explore two more gigapans of this roadcut, click here:
Unknown provenance, but it tells a nice story.
Cross-cutting basement complex granitoids.
Sill that intruded the Liassic shale on the east side of Portrush, Northern Ireland.
Dolerite sill that intruded the Liassic shale on the east side of Portrush, Northern Ireland.
Plagioclase-rich anorthosite in a cobble. Shows a fair amount of weathering as well as nice reaction rims.
This is the obverse of this sample:
To explore gigapans of a sediment sample collected from North Clear Creek, directly across the street from this roadcut, click here:
Gigapanning on a windy day is absolutely exasperating.
For a less windy gigapan of part of this roadcut, click here:
Chalk, chert, and basalt dominate the lithologies of these well-rounded beach cobbles.
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