Post by 150FromFundy on Apr 8, 2011 17:26:16 GMT -5
It`s about a 2 mile hike from Wassons Bluff to Clark Head. The sun is a little deceptive. It`s still only a few degrees above the freezing point. This shoreline was once attached to Morocco, but that was quite some time ago. A mere 300 million years, or so. When the continents split apart forming the Bay of Fundy and the Atlantic Ocean the seafloor fissured forming underwater volcanoes, or black smokers. These Sea Stacks are the remnants of some of those underwater volcanoes. Clarks Head is just a little over a mile off in the distance.
When life clings to a Sea Stack, it becomes known as a Flower Pot. These Flower Pots may be accessible now, but they will be islands when the ocean returns in 6 more hours. You can see the evidence of undercutting at the high water mark.
This is Sea Stack number three, actually a Flower Pot.
Ice and snow is still melting a creating small waterfalls over the cliff face.
There are a number of contact zones visible along the cliff face. The rocks have become fractured and altered. This face contains epidote (green) and jasper (red) with fracrures filled by zeolite minerals.
This layered sedimentary rock was once horizontal at the bottom of the ocean. Continental collisions along the fault zone have uplift this rock to about a 45 degrees.
This feature is known as a Keyhole. It’s the result of pounding tidal action and freeze/thaw cycles eroding the rock.
Keyhole from the other side.
I managed to bag a few zeolite specimens, some rhyolite and some agates. They will be appearing soon.
Darryl.
When life clings to a Sea Stack, it becomes known as a Flower Pot. These Flower Pots may be accessible now, but they will be islands when the ocean returns in 6 more hours. You can see the evidence of undercutting at the high water mark.
This is Sea Stack number three, actually a Flower Pot.
Ice and snow is still melting a creating small waterfalls over the cliff face.
There are a number of contact zones visible along the cliff face. The rocks have become fractured and altered. This face contains epidote (green) and jasper (red) with fracrures filled by zeolite minerals.
This layered sedimentary rock was once horizontal at the bottom of the ocean. Continental collisions along the fault zone have uplift this rock to about a 45 degrees.
This feature is known as a Keyhole. It’s the result of pounding tidal action and freeze/thaw cycles eroding the rock.
Keyhole from the other side.
I managed to bag a few zeolite specimens, some rhyolite and some agates. They will be appearing soon.
Darryl.
