Discover and read the best of Twitter Threads about #PeggysCove
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We all love #PeggysCove for how beautiful it is but how it formed also offers a great geology lesson about the three types of rock:
#nspoli #cbpoli #novascotia #capebreton @TourismNS @BernJordanMP @Pier12Hugh @MattWhitman2020
#nspoli #cbpoli #novascotia #capebreton @TourismNS @BernJordanMP @Pier12Hugh @MattWhitman2020
IGNEOUS ROCK: Rocks formed by molten magma are called igneous rocks and can be fine-grained or coarse-grained depending on how closely to the earth’s surface the cooling occurred.
#nspoli #cbpoli #novascotia #capebreton @TourismNS
#nspoli #cbpoli #novascotia #capebreton @TourismNS
Granite is an example of a coarse-grained igneous rock which cooled relatively slowly beneath the earth’s surface. Granite is often exposed at the surface as overlying rocks are eroded.
SEDIMENTARY ROCK: Sedimentary rocks can be formed by 2 processes.
#nspoli #cbpoli #novascotia
SEDIMENTARY ROCK: Sedimentary rocks can be formed by 2 processes.
#nspoli #cbpoli #novascotia
Why does the granite at #PeggysCove have so many cracks?!
Check out this thread for the answer.
#nspoli #cbpoli #novascotia #capebreton @BernJordanMP @MattWhitman2020 @HughMacKayCSM @TourismNS @NS_Museum #nshistory #geology
Check out this thread for the answer.
#nspoli #cbpoli #novascotia #capebreton @BernJordanMP @MattWhitman2020 @HughMacKayCSM @TourismNS @NS_Museum #nshistory #geology
The rocks at #PeggysCove began 470 million years ago as mud and sand in a deep ocean basin near ancient Africa. They built up and were eventually compacted into shale and sandstone.
#nspoli #cbpoli #novascotia #capebreton #nshistory #geology
#nspoli #cbpoli #novascotia #capebreton #nshistory #geology
As tectonic plate movement caused North Africa and North America to collide 400 million years ago, the shale and sandstone were squeezed between the two continents and heat and pressure transformed them into slate and quartzite.
#nspoli #cbpoli #novascotia #capebreton #nshistory
#nspoli #cbpoli #novascotia #capebreton #nshistory
