Which of the following best describes the lunar maria Which of the following best describes the lunar maria?
astronomy final shelley
| Question | Answer |
|---|---|
| Which of the following best describes the lunar maria? | relatively smooth, flat plains on the Moon |
| In the context of planetary geology, what do we mean by outgassing? | the release by volcanism of gases that had been trapped in a planetary interior |
What do we mean by outgassing quizlet?
Outgassing – the release of pressure expelling trapped gasses from molten rock. The gas that made the Earth’s atmosphere and the water vapor that formed the Earth’s oceans came from outgassing.
What do we mean by outgassing in the context of planetary geology?
In the context of planetary geology, what do we mean by outgassing? the release by volcanism of gases that had been trapped in a planetary interior.
Which world shows huge cliffs suggesting that its core once shrunk and the surface crumpled over it?
Mercury’s surface is not only peppered with impact craters, but also wrinkled with mysterious chains of cliffs. Scientists think the “lobate scarp” cliffs — some 2 miles high and hundreds of miles long — were created as Mercury’s crust bunched up around its shrinking interior, something like a dried-out piece of fruit.
Why are there more maria on the near side of the moon?
The near side of the moon has a thinner crust on average than the far side, and contains a larger amount of heat producing elements below the crust (causing the near side to be more volcanically active).
How were the maria formed?
The result was the melting and eruption of basaltic lava onto the lunar surface between 3.8 to about 2.8 billion years ago to form the lunar maria. This lava was highly fluid under the weaker gravitational field of the Moon and spread over vast distances.
What do we mean by outgassing?
transitive verb. 1 : to remove occluded gases from usually by heating broadly : to remove gases from. 2 : to remove (gases) from a material or a space. intransitive verb. : to lose gases.
What is outgassing and why is it so important to our existence?
Outgassing is the release of chemicals or gases into our atmosphere expelled usually from volcanoes or some form of molten rock. It is so important to our existence because the gas that made the Earth’s atmosphere and the water vapor that formed the Earth’s oceans came from outgassing.
What is outgassing astronomy?
Outgassing (sometimes called offgassing, particularly when in reference to indoor air quality) is the release of a gas that was dissolved, trapped, frozen, or absorbed in some material.
What is the definition outgassing?
What are believed to have caused the steep cliff like north and south ridges that stretch over Mercury’s surface?
The surface of Mercury hosts thousands of cliff-like rupes, which range in length from tens to many hundreds of miles. They are believed to have formed when blocks of crust thrust up and over each other in response to the global contraction of the planet as its interior cooled and solidified.
What is Maria space?
maria – a dark region of considerable extent on the surface of the moon. mare. region, part – the extended spatial location of something; “the farming regions of France”; “religions in all parts of the world”; “regions of outer space”.
How old is the Maria on the Moon?
Bonnie J. Buratti, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 The lunar maria (or plains), which were formed between 3.1 and 3.9 billion years ago, are the youngest geologic units on the lunar surface, except for more recent impact craters.
What does the term Maria mean in Latin?
The term, which in Latin means “sea,” was erroneously applied to such features by telescopic observers of the 17th century. In actuality, maria are huge basins containing lava flows marked by craters, ridges, faults, and straight and meandering valleys called rille s and are devoid of water.
What’s the difference between offgassing and outgassing in astronomy?
Offgassing, is similar to outgassing only that the latter refers to indoor air quality. This happens in many areas, including environments, nature and other processes. However, outgassing in astronomy specifically refers to gases released by the earth and other terrestrial planets.