Sediments with an extraterrestrial origin are those that have been deposited on Earth from outer space. This can include materials such as meteorites, cosmic dust, and tektites. These sediments provide valuable insights into the history and composition of our solar system.
Glacial drift is the term for all sediments of glacier origin.
Marine sediments are typically classified into four main classes: terrigenous, biogenous, hydrogenous, and cosmogenous. Terrigenous sediments originate from land, consisting of eroded rocks and soil transported by rivers and wind. Biogenous sediments are derived from biological materials, primarily the remains of marine organisms like foraminifera and diatoms. Hydrogenous sediments form directly from the precipitation of minerals from seawater, while cosmogenous sediments come from extraterrestrial sources, such as meteorites.
Glacial deposits or glacial drift refer to all sediments of glacial origin. These deposits include materials such as till, moraines, outwash plains, and glacial erratics that are left behind by the movement of glaciers.
The heaviest sediment is generally composed of materials such as gravel, sand, and silt. These sediments have higher densities and larger particle sizes compared to lighter sediments like clay. Heavy sediments are typically found closer to their source of origin due to their weight.
Extraterrestrial rock is rock that did not originate from Earth.
Astrobiology
Xenobiology is the speculative Biology of extraterrestrial life forms.
Xenobiology is the speculative Biology of extraterrestrial life forms.
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Glacial drift is the term for all sediments of glacier origin.
Glacial Drift
Astrobiology
Astrobiology