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Geologic time shown in a diagram called a geological clock, showing the relative lengths of the eons of Earth's history and noting major events. The geological history of the Earth follows the major geological events in Earth's past based on the geological time scale, a system of chronological measurement based on the study of the planet's rock ...
Principle of cross-cutting relationships – Principle that the geologic feature which cuts another is the younger of the two; Law of included fragments – Clasts in a rock are older than the rock formation; Principle of uniformitarianism – Assumption that the natural laws and processes of the universe are constant through time and space
Pages in category "Geological processes" The following 87 pages are in this category, out of 87 total. This list may not reflect recent changes. 0–9.
Solidified lava flow in Hawaii Sedimentary layers in Badlands National Park, South Dakota Metamorphic rock, Nunavut, Canada. Geology (from Ancient Greek γῆ (gê) 'earth' and λoγία () 'study of, discourse') [1] [2] 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. [3]
The rock cycle explains how the three rock types are related to each other, and how processes change from one type to another over time. This cyclical aspect makes rock change a geologic cycle and, on planets containing life, a biogeochemical cycle. Structures of Igneous Rock.
Mountain formation occurs due to a variety of geological processes associated with large-scale movements of the Earth's crust (tectonic plates). [1] Folding, faulting, volcanic activity, igneous intrusion and metamorphism can all be parts of the orogenic process of mountain building. [2]
Geologic map of North America, color-coded by age. From most recent to oldest, age is indicated by yellow, green, blue, and red. The reds and pinks indicate rock from the Archean. Mantle convection, the process that drives plate tectonics, is a result of heat flow from the Earth's interior to the Earth's surface.
Svecofennian orogeny, also known as Svecokarelian orogeny – Geological process that resulted in formation of continental crust in Sweden, Finland and Russia, (2.0–1.75 Ga) Gothian orogeny – Orogeny in western Fennoscandia – Formation of tonalitic-granodioritic plutonic rocks and calc-alkaline volcanites (like the previous Svecofennian ...