Introduction to Geology GEO-101-004 Class 6: Igneous Rocks From http://volcano.und.nodak.edu Last Question of the Day Name one mineral that you have seen and/or used in the last two hours Graphite, muscovite, barium, gypsum, etc Question of the Day
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Name one mineral that you have seen and/or used in the last two hours
Graphite, muscovite, barium, gypsum, etc
What is the major reason for some igneous rocks being coarse grained, and some being fine grained?
Earth-like processes on Titan
This image from Huygens shows detail of a high ridge area including the flow down into a major river channel from different sources – evidence of fluvial activity
The Mars Exploration Rover Opportunity has found a pitted, basketball-size meteorite made of iron and nickel. This is the first ever meteorite seen on the surface of the planet
Metal-rich meteorites are rare (making up only 2% of meteorites on Earth). Such meteorites must come from a destroyed planet that was big enough to differentiate into a metallic core and a rocky mantle
Figure 4.7 igneous rocks. Why?