Tag Archives: unconformity

The “Wave Razor” May Explain Why Some Unconformities in Rock Layers Are So Flat

Summary In many exposures of sedimentary rock layers there is a significant gap in age (“unconformity”) between two adjacent layers. This indicates that after the lower layer had been deposited and turned into solid rock, it was raised above water … Continue reading

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“Unconformities” Showed Geologists By 1800 That The Earth Was Very Old

If we had to choose one iconic location for the birth of modern geology, it would probably be here: Siccar Point, Scotland (Photo by Dave Souza;  Wikipedia “Hutton’s Unconformity”) This is a photograph of Siccar Point, on the Scottish coast. … Continue reading

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