Cambrian quartz arenite with prominent Skolithos tubes. Here, iron oxide staining highlights the trace fossils.
Skolithos tubes define this member of the Cambrian quartzite, north of Loch Assynt.
Ancient lakeshores (lake dammed by glacial ice) etched into the valley walls.
Shorelines of an ancient glacier-dammed lake, etched into the sides of this U-shaped valley.
An outcrop north of Loch Assynt showing the basal Pipe Rock (Cambrian quartz arenite).
Is it a "Snowball Earth" tillite? Maybe!
Sheared Dalradian metaturbidites w/ dike tip at Lochranza, Arran, Scotland
Folded turbidites of the Smaull Greywacke at Saligo Bay, Islay, Scotland.
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