the cliffs at gay head
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The Cliffs at Gay Head. The layers of clay are very very old, with a thin layer of glacial deposits on top. So why are they so high above sea level today? H ow is the Ice Age responsible for their visibility to us?. Some layers are 100 million year old deposits, from the Cretaceous. - PowerPoint PPT PresentationTRANSCRIPT
The Cliffs at Gay Head
The layers of clay are very very old,with a thin layer of glacial deposits on top.
So why are they so high above sea level today?How is the Ice Age responsible for their visibility to
us?
Some layers are 100 million year old deposits, from the Cretaceous.
Clay deposits are extremely soft, so the erosion is significant. Notice the color of the
water.
Certain layers are rich with fossils. Based on the fossils, what can you say about how these layers
formed millions of years ago?
A large fossil bone.But from what?
The City of Columbus(A cruise ship in it’s time.)
January 18, 1884
Actual photograph from the next day.
Devil’s Bridge(Glacial moraine and enormous erratics, just under the
surface.)
MoshupThe real reason for Devil’s Bridge. And Nomans
Land. And the red color to the cliffs. And…
The Fresnel Lens