Sunday, August 22, 2010

Mount Keira and Kiama Blowhole

top of Mount Keira

On Friday, August 13 (HAPPY COLGATE DAY!) a bunch of us hiked Mount Keira, which is walking distance from the uni.  It was slightly more strenuous thank I was expecting, but still a lot of fun!  At the top, we ran into a bunch of bridesmaids who were having a dance party in a random parking lot.  Obviously we joined in.  Not really sure what happened to the wedding, but at the time that information was secondary to the dance party.
Kiama blowhole action shot.

On Saturday, August 14 we had a local geology field trip to Bombo and the Kiama Blow Hole.  So many rocks!  I could totally nerd out right now and talk about the sassy twinned biotite, or the sweet breccia, but instead I think you’d all rather trust me that it was awesome.


fun fact:  There are actually two blowholes at Kiama, and we saw the larger one.  The first happened when a dyke eroded away, where the second happened when a chunk of columnar basalt collapsed.  Both of these processes left holes in the preexisting rock structure that water now gets forced through.  When the pressure is released the water is shot up, creating the blowhole.

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