Weird Gabriola Island rock formations
- Thread starter #juan
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These rock formations are all around the island.........That's me in the picture btw..
You're looking pretty well preserved. I worked on Gabriola many years ago, first time was when Davy Barrett had a scheme to build a main ferry terminal on Sears Id. at the south end of Gabriola connecting with 2 bridges one to Mudge Id. and another to Duke Point near Harmac. About 5 minutes after we completed the survey the plan was scrapped.-
You're looking pretty well preserved. I worked on Gabriola many years ago, first time was when Davy Barrett had a scheme to build a main ferry terminal on Sears Id. at the south end of Gabriola connecting with 2 bridges one to Mudge Id. and another to Duke Point near Harmac. About 5 minutes after we completed the survey the plan was scrapped.-
To be honest that photo is about eight years old. I probably feel older than I look in that photo..:lol:
I recall years ago right at the north end of Gabriola Island seeing a bunch of millstones just more or less abandoned! What the history of them was I have no clue!
Hornby has similar formations. I was once told that it is volcanic mud that brought up harder rocks. They eventually fall out which makes the holes.
Yep. Conglomerate is the term; a mix of hard and softer rock. Erosive forces like water and wind wears away the softer stuff faster and destabilizes the harder stuff.
The are really nice Ammonite fossils along the railways cuts through limestone between Naniamo and Duncan.
These rock formations are all around the island.........That's me in the picture btw..
Ammonite eh, that's interesting, I think I'll read something about it. thanks
The fossils are sometimes turned up by the excavator after the blasting Lester.
Not to be a smart *** but its not a conglomerate..... In my opinion if it was we would still see pebbles and rocks larger than the matrix still sticking out of the outcrop... Neither is it igneous because light igneous rocks dont weather smoothly like what we see in the picture... Im thinking carbonate
It is limestone. Before there was the back island arc of van island it was warm shallow sea just before the Jurassic Sevier Orogenesis 140Ma - 50Ma of western rockies and such westward to the cascades during the Laramide orogeny period 40Ma - 70Ma.
Amen
Amen
Sauce made from pluton ground dinoflagellates from the georgia strait sediment horizons on the cabonate to clastic nonconformity?