What is Cosmogenous sediment?
Cosmogenous sediment is derived from extraterrestrial sources, and comes in two primary forms; microscopic spherules and larger meteor debris. Spherules are composed mostly of silica or iron and nickel, and are thought to be ejected as meteors burn up after entering the atmosphere.
Where do Lithogenous sediments come from quizlet?
Lithogenous sediment is derived from pre-existing rock that is weathered and transported to the oceans by streams, wind, glaciers, and gravity from land.
What is an example of Cosmogenous sediment?
Space dust, asteroids and meteors form cosmogenous sediment. Cosmic dust sometimes forms particles called tektites, which contain high concentrations of iridium.
What are Biogenous sediments What is the source quizlet?
biogenous, Biogenous sediments are derived from the remains of the hard parts of micro- and macroscopic organisms.
What does Cosmogenous mean?
a) Cosmogenous: material that falls to the Earth surface from outer space.
Where is Cosmogenous sediment found?
These kinds of sediments are found commonly near hydrothermal vents. Cosmogenous sediments are probably the most interesting of all four kinds of sediment because they are alien in nature. These kinds of sediments are carried to earth on meteorites or asteroids.
What is Lithogenous sediment?
Lithogenous sediments (lithos = rock, generare = to produce) are sediments derived from erosion of rocks on the continents. A look at the “Sources” section of Table 1 (below) illustrates the diverse ways in which sediments from the continents enter the marine environment.
How do most Lithogenous sediments get transported to the ocean?
Lithogenous sediments are: Mostly small pieces of broken rock transported to ocean from the land (wind, rivers, glaciers, coastal erosion, turbidity currents etc.)
Where are Cosmogenous sediments found?
Where do Cosmogenous sediments come from?
Cosmogenous sediments come from space, filtering in through the atmosphere or carried to Earth on meteorites.
What can be used to differentiate Cosmogenous sediments from other sediment types?
What can be used to differentiate cosmogenous sediments from other sediment types? Cosmogenous sediment has high concentrations of nickel compared to lithogenic sediments found on Earth.
How are Cosmogenous sediments formed?
Biogenous sediments come from organisms like plankton when their exoskeletons break down. Hydrogenous sediments come from chemical reactions in the water. Cosmogenous sediments come from space, filtering in through the atmosphere or carried to Earth on meteorites.
Where does Cosmogenous sediment come from?
How do you find Cosmogenous sediment?
Cosmogenous sediments are mainly located near meteor impact structures or can be found in small amounts mixed with a variety of sediments in all kinds of marine environments.