DLA2015 Pillow Lava.
Basaltic lava erupting underwater at mid-oceanic ridges produce Pillow Lava.
At the Corner of Highway 41 and Hunt road is a great example of these Ancient Pillows.
This location is part of the Tudor Formation and were formed around 1,280 million years ago during the Grenville Orogeny.
When molten basalt is erupted under water, it cools immediatly into large globular masses or pillow shaped formations.
Pillow basalts form in a wide range of tectonic settings.
The pillows at this location formed when ancestral North America collided with
the large landmass, that is now South America. These pillows problay originated in what is called a
Back arc rift basin.
Over time the waters receeded and through errosion the Pillow Lava at this location became exposed for you to explore.
In order to log this Earth Cache please contact me via my Geocaching profile with the
asnswers to the following questions.
1) How high does is the Pillow Lava rise up from road level
2) Why do you think there are cracks in the Pillow, and will they get larger?
3) What does the texture feel like on the surface compared to the cracks.
OPTIONAL
Post a photo at GZ, bonus points if you brought your blanky
Remember with all my Earth Caches, the idea is to learn a bit of Geological history and have fun
It IS NOT to cause you grief trying to give perfect scientific answers
Just do your best.
Please log this Earth cache as soon as you sent the answers
This Geocache is being hid for the DLA2015 MEGA Event GC5FPJB,
Do not seek until 9am on Saturday August 22nd, 2015