The crust’s thickness where I am in Indiana is approx. 28 mi, or 45 km.
Category Archives: Geology
Rock Report: Science Lesson #8
My rock is basalt. I found it in my yard. I don’t remember when we got it, but it has been next to our porch for a while. It isn’t to be confused with the vesicular basalt, like what my teacher found. This is vesicular basalt: When lava has lots of iron and magnesium in …
Science Lesson #7
What Rock Is a building in your town made of? I live in Indiana, which is famous for limestone. I live in the capital of Indiana, Indianapolis. So I chose the Indiana state house, which is made of limestone. Limestone is a sedimentary rock, meaning that it is a bunch of tiny pieces cemented together. …