Other
Grand Canyon Geology
Photos, illustrations, 3D graphs and animations are part of this investigation into the geology and landforms of the Grand Canyon. Learn detailed information on the formation of the canyon, the rock layers, and the prehistoric life that...
Curated OER
National Park Service: Oldest Rocks
Rocks can give us clues into the history of Earth. Learn what the rocks in the National Parks can tell us.
Other
Bc Open Textbooks: Physical Geology: Crystallization of Magma
The minerals that make up igneous rocks crystallize at a range of different temperatures. The sequence in which minerals crystallize from magma is known as the Bowen reaction series. An explanation of the reaction series is provided...
Other
Arkansas Geological Commission: Marble
General marble information, Arkansas geology, and a history of production are discussed by the Arkansas Geological Commission.
Alberta Online Encyclopedia
Alberta Online Encyclopedia: Geology
The geology of Alberta is profiled on this site. Drop menus reveal sub-topics ..geological time scale, rock formations in Alberta, and so forth.Graphics and maps are included.