The maria tend to appear dark and the highlands appear light from Earth. Learn vocabulary, terms, and more with flashcards, games, and other study tools. They are both made from fluid basaltic lavas that spread across a flat area. The Moon used to rotate at a faster rate, but early in its history, its rotation slowed and became tidally locked in this orientation as a …
First, the Moon has no active volcanoes to release gasses from inside the Moon into it's atmosphere. If the impact rate was constant over the Moon's history, the highlands would be least 10 times older than the maria, or about 38 billion years old. What year did man land on the moon? Highlands are elevated several kilometers above the maria and are breccias. The radioactive dating of highland samples shows that they are only slightly older than the maria, about 4.2 billion years versus 3.8 billion years. The rate of cratering in the lunar highlands shows us that they range from 4.6 - 4.4 billion years old, on average. Maria are smooth, basaltic plains. 9 Quiz. Second, any gasses that would have been released in the … The shadow is on the side of the moon facing away from the sun; light does not shine there . 12) The major bombardment period that shaped much of the surface of the moon ended _____. B) 3.8 billion years ago. 1969. When the moon is in perigee it is.... closer to the earth in its elliptical orbit around earth (closer to its PERimeter) What causes the shadow on the moon? This results in it nearly always keeping the same face turned towards the Earth.
That's older than the age of the universe. Start studying Geology Chapter 24. A) Flood basalts B) Granite C) Anorthosite D) Frozen hydrogen . ... What kinds of rocks were most commonly retrieved from the lunar highlands? Lunar highlands appear {light, dark} Lunar highlands appear lighter in color. The Moon is in synchronous rotation with Earth, always showing the same face The Moon is in synchronous rotation: it rotates about its axis in about the same time it takes to orbit the Earth. Thus, the impact rate must not have been constant, and been at a much higher …
The average rate of erosion on the Moon is far less than on Earth because Learn vocabulary, terms, and more with flashcards, games, and other study tools.
How are maria on the Moon similar to the Columbia Plateau in the Pacific Northwest? Start studying Ch.
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