October 16, 2010

Rock hunt.

Igneous, metamorphic, sedimentary.


We've been studying rocks this unit so we headed out on a rock hunt.
We found a ton of sandstone.  In my former life (pre-kids), I used to be a geotechnical engineer.  I stood at the back end of a drill rig and classified soils as they brought them up from deep in the earth.  Sadly I don't remember a whole lot, but I can definitely still tell what a sandstone is.

Keepin' it real, folks.  Sarah snapped this photo...I'm texting the devoted Mr. Garland. 

Here's my actual text:

Me:  "Hiking with kids at lake.  Studying rocks."
Devoted Mr. Garland:  "Gneiss." *

The devoted Mr. Garland knows his igneous, metamorphic, and sedimentary rocks.

Our navigator and his young assistant.




* Gneiss (pronounced /ˈnaɪs/ "nice") is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks.

No comments:

Post a Comment