Missing
time
The rocks to the right of the marker (at the end of the path, at the base of the slope) are Precambrian granites (intrusive igneous rocks, crystallised from a molten state low down in the crust) and gneisses (high-grade metamorphic rocks). To the left, are layered sedimentary rocks deposited in Cambrian-age seas. The contact between them represents several hundred million years, during which the mountains above the granite and gneiss were eroded down to below sea level, allowing for depsition of sediments that became the sedimentary rocks. These rocks are all now tilted, so the layered sediments are now sloping down to the left at about 45°.
Return
to Southwest trip homepage