Meteorites and Mountains

Note from Cat: I’m a little behind on posts since the post trip relaxation has truly kicked in. Evan will claim it’s because I hate him that these posts are late, but that’s the way the cookie crumbles.

Authored by Not Wanderlust’s head geologist: Evan Dismukes 

Quick Vocabulary:

Laccolith: when a pluton is created and makes the overlaying rock bulge upward
The remainder of our sojourn through Canada was spent visiting cities so this post is going to be short and sweet. It does involve engaging topics such as meteors, mountains and magma.

We entered Sudbury. I’m not sure if the depressed vibe was a result of the rain or because the Timmy Ho’s we stopped at for breakfast was entirely comprised of homeless people. Either way, it had the classic post-economic collapse of blue collar towns, an environment we are familiar with being from Pittsburgh. Despite all of this, Sudbury is the “Nickel Capital of the World.” The city is in the middle of a giant crater that was created by an asteroid impact about 2 billion years ago. It is the second largest confirmed meteor impact on earth. For comparison, the third biggest impact is the one in Mexico that killed off the dinosaurs. The rocks in this area are mostly gneiss and fragmented granite. The gneiss was granite from the Canadian Shield that metamorphosed into gneiss as a result of the asteroid impact. The fractured granite are the pieces of the Canadian Shield that were broken up and thrown into the sky as a result of the meteor impact. With the Canadian Shield’s rich minerals and the meteor materials, Sudbury was primed to be a booming mining town. It’s title of “Nickel Capital of the World” after the Big Nickel Company was founded in the area and became the largest producer of nickel in the world. Regardless how it seems, Big Nickel is actually the name of the company and not just what conspiracy theorists call the nickel industry in the town.

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A Mixture of Young and Old

Authored by Not Wanderlust’s head geologist: Evan Dismukes

Quick Vocabulary:



Lithified: the process of hardening into a rock

Canadian shield: billion year old rock in the northern part of America made up of mostly granite

Rift valley: place where the Continental Plate started separating
Traveling from the ranches and mountains of Wyoming and the trashy tourist towns in the Black Hills to the flat, buggy and forested emptiness of the Canadian Shield.

Everywhere we went on this leg provided a wide range of geology experiences as well as some other not so positive experiences.

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Ski Bums and Cowboys

Authored by Not Wanderlust’s head geologist: Evan Dismukes

 

Quick Vocabulary 

Quartzite: metamorphosed sandstone.

Slate: metamorphosed shale.

Marble: metamorphosed limestone.

Igneous: volcanic in origin.

Metamorphic: altered in some way. Either by heat, pressure or deformation.

Burgess Shale: a rock layer famous for having some of the best preserved fossils in the world.

Travertine: type of limestone deposited by mineral springs.

Amphibolites: metamorphosed hornblende.
Now that we have reached the highest latitude for our trip, and witnessed Cat failing at using her SheWee for a second time, we begin our move east. We found out that Canada has it’s own Glacier National Park, traveled through the Canadian Rockies and returned to the U.S. despite our Border Patrol’s best efforts to deny natural born citizens access to their homeland.

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From Gorillas to Grizzlies

Authored by Not Wanderlust’s head geologist: Evan Dismukes 


Quick Vocabulary

Basalt: a type of lava.

Pyroclastic flow: a superheated ash cloud that moves along the ground at high rates of speed.

Stratovolcano: a cone shaped volcano made up of ash, lava and pumice.

Lahar: a mud flow.

Accretionary wedge: the rock and sediment that gets scraped off the plate that is being subducted.
I know I’m currently behind in these posts, but we’ve been insanely busy since the last one. I’m finally being able to write this since I didn’t have any opportunities to do research in the past week (hopping from wifi hotspot to wifi hotspot in Canada doesn’t help). I’ll chose to blame all of this on the U.S. Border Patrol officers that we’ve dealt with over the past week. Everytime we enter Canada it’s a “Hello” and “Enjoy your stay,” but every time we return to the U.S. it’s “do you have written permission from your parents to operate this vehicle?” without even a “welcome home.”

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