Geology
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Geology is a branch of natural science concerned with the Earth and other astronomical bodies, the rocks of which they are composed, and the processes by which they change over time. The name comes fr
The Grand Canyon, Arizona, in March 2013
The Permian through Jurassic stratigraphy of the Colorado Plateau area of southeastern Utah is an example of both original horizontality and the law of superposition. These strata make up much of the famous prominent rock formations in widely spaced protected areas such as Capitol Reef National Park and Canyonlands National Park. From top to bottom: Rounded tan domes of the Navajo Sandstone; layered red Kayenta Formation; cliff-forming, vertically jointed, red
The mineral zircon is often used in radiometric dating.
The San Andreas Fault in California is a strike-slip fault
Earth science
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Earth science or geoscience includes all fields of natural science related to planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and sy
Geology
…over time. The name comes from Ancient Greek γῆ (gê) 'earth' and λoγία (-logía) 'study of, discourse'. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its…
The rocky side of a mountain creek in Costa Rica.
Layers of sedimentary rock in Makhtesh Ramon.
A volcanic eruption is the release of stored energy from below Earth's surface.
The magnetosphere shields the surface of Earth from the charged particles of the solar wind. (image not to scale.)