Sunday, June 15, 2008

Because geologists like cool things....

Yes, one reason to get into geology is that there a lots of cool tools to use. To the left is a selection of rulers (white things) and the bright yellow field books commonly used.

The two types of rulers in the picture are used for putting your strikes and dips on a map as well as for assisting in creating a cross section. (We'll go into that later, I'm sure.) The long skinny one is useful, well, EVERYWHERE! Because we live in backwards America, these are in 10ths and
20ths of inches. Thankfully, most topographic maps are still in feet so this actually limits the conversions. The protracter looking one is called a "Zip a Dip." We found out about this one during the Landslides class this spring. It has a slightly different function than the skinny one, but one that's boring and only freaky geologists would be interested so I won't bore you with the specifics.

The yellow books are the coolest things around. The are called Rite in the Rain field books. They come in different styles: from full page to pocket sized to memo books, they can be stapled, spiral bound, book bound. (For more info: writeintherain.com) The ones we use are pocket sized, stapled ones. I also have a bound one for permanent notes since we'll need to hand in our small ones from time to time for grading.

I know this bottle looks like a normal small squeeze bottle, but inside, has a very simple tool: acid. Dilute HCl is used to determine if a rock has any carbonates in it. If there's carbonates, the rock fizzes, no fizz = no carbonates. Rudimentary test that works wonders and it's easy to do.

Tomorrow...back pack and water...last equipment post

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