Geology studies the history of the earth.  It uses physics and chemistry to study rocks and minerals, and the importance of fossils for dating means it also has ties to biology.  Geology is a visual sciences, looking at rocks and fossils, photographs and graphs, and especially maps.  Because geologists have always used maps, geology draws on GIS and remote sensing.  I find it hard to believe that when I started in geology, including doing my field mapping in Nevada, that everything was done "hard copy" with paper maps and air photos.  It is now "soft copy" on the computer.  You will truly be a geologist when you watch a movie and want to know where it was filmed to explain the rocks and scenery in view.  We hope to get a sense of the ocean basins by looking at their features, and understand the processes that created them.

Oceans cover 70% of earth

Last revision 8/17/2016