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Geology (from Ancient Greek γῆ (gê) 'earth', and λoγία 'study of, discourse') is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time.
- Structural Geology
Structural geology is the study of the three-dimensional...
- History
The history of geology is concerned with the development of...
- Outline
The following outline is provided as an overview of and...
- Structural Geology
Geology is the study of Earth and its components, including the study of rock formations. Petrology is the study of the character and origin of rocks. Mineralogy is the study of the mineral components that create rocks.
Geology is the study of the nonliving things that the Earth is made of. Geology is the study of rocks in the Earth's crust. People who study geology are called geologists. Some geologists study minerals (mineralogist) and the useful substances the rocks contain such as ores and fossil fuels. Geologists also study the history of the Earth.
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Earth formed about 4.54 billion years ago by accretion from the solar nebula, a disk-shaped mass of dust and gas left over from the formation of the Sun, which also created the rest of the Solar System . Initially, Earth was molten due to extreme volcanism and frequent collisions with other bodies.
The geologic time scale or geological time scale ( GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks).
