0
The most meteoite material that people have dated stems from the time when the solar system formed and stems from bodies that never managed to grow the size of planets.
When people date materials that are that old, they use techniques that tell them when the material solidified for the last time either from a homogenous protoplanetary nebula or from a liquid magma.
Since the moon is believed to have formed by a giant impact of a roughly mars-sized body with the proto-Earth millions of years after most meteorites were formed and moon experienced ongoing magmatic activity thereafter, the ages obtained by radiometric dating of moon rocks are usually younger than those of meteorites.
Moon rocks are younger than most meteorites because the moon formed later than the solar system. Most meteorites are remnants from the early solar system, while moon rocks come from the moon's formation around 4.5 billion years ago. This age difference accounts for the discrepancy in their respective ages.
Add your answer:
Earn +20 pts
Many more meteorites reach the surface of the moon because?
Many more meteorites reach the surface of the moon because it lacks an atmosphere to burn up incoming objects, unlike Earth. This means that the moon's surface retains more impact craters from these meteorite strikes compared to Earth.
How old were the lunar rocks Apollo brought back?
The lunar rocks brought back by the Apollo missions are estimated to be around 3.9 billion years old, which provides valuable insights into the early history of the Moon and the solar system.
Which country has the most meteorites?
Antarctica has the most meteorites due to its icy surface that preserves them well. Scientists regularly find meteorites there, making it a hotspot for meteorite discoveries.
Does the Moon have mountain ranges?
Yes, the Moon has mountain ranges. The most famous one is the Montes Apenninus. The Moon's mountains are not formed by tectonic activity like on Earth, but rather by the impact of asteroids and meteorites.
What dont the moon have for the meteors to burn up in?
The moon doesn't have a protective atmosphere like Earth does, so meteors don't burn up upon entry. Instead, they collide with the moon's surface, creating impact craters.
What are the holes in the moon and how were they made?
The "holes" in the Moon are craters; it's likely that most of those are caused by meteorites.
-More meteorites reach the surface of the moon than the Earth Why?
Most of the meteorites which reach Earth burn up as they enter Earth's atmosphere due the heat caused by friction. The moon has no atmosphere.
Is some of the most extreme tornado's on the moon?
No. The moon has no atmosphere so it can't have tornadoes. But Meteorites can hit the moon. That is why it has so many craters.
How is Primitive meteorites can be distinguished from other meteorites and terrestrial rocks because they?
Primitive meteorites can be distinguished from other meteorites and terrestrial rocks because they contain primitive materials like chondrules, which are tiny spherical particles that formed in the early solar system. These meteorites also have a different chemical composition compared to most Earth rocks, with high concentrations of elements like iridium and noble gases. Additionally, primitive meteorites often exhibit a lack of alteration or melting, preserving their original characteristics from the early solar system.
Many more meteorites reach the surface of the moon because?
Many more meteorites reach the surface of the moon because it lacks an atmosphere to burn up incoming objects, unlike Earth. This means that the moon's surface retains more impact craters from these meteorite strikes compared to Earth.
Do more meteorites fall in antarctica?
No. Meteorites fall at the same rate over all places on Earth. However, meteorites are easier to find in Antarctica as they are easy to spot on top of the ice sheet. In most other places meteorites don't stand out much and are easily mistaken for ordinary rocks.
Is most of the moon surface covered by rocks?
Most of the moon is covered by a powder that is rather sticky
Why are such a few meteorites found on earth?
Meteorites are rare on Earth because most burn up in the atmosphere or land in remote areas where they are not easily discovered. Additionally, the Earth's surface is mostly water, limiting the chances of meteorites being found. Lastly, some meteorites may be small and difficult to distinguish from ordinary rocks.
Why are there rocks on the moon that are older that any rocks on earth?
There is no geologic activity or weathering on the moon to break rocks down, so most of the rocks on the moon are nearly as old as the moon itself. Earth is geologically active and has processes that will destroy and recycle rocks. None of the rocks that made up Earth's original surface are still intact.
What is the density of an iron meteorite?
The density of iron meteorites typically ranges from 7.0 to 8.0 grams per cubic centimeter. This density is higher than most terrestrial rocks due to the high iron content in meteorites.
Why are there thousands of craters on the moon?
The moon doesn't have an atmosphere, so meteorites hit the surface and create the craters. Earth's atmosphere causes most meteorites to burn up due to air friction before the meteorite can crash on to the surface. A 'shooting-star' is a meteorite burning up in the sky.
What is the name on the oldest rock to ever be around?
This is a very tricky question, unless certain parameters are given. The oldest rock in the universe, most likely was a lithium-ion. The oldest rocks in our solar system are from the Hadean Era and would include parts of the Moon and most meteorites. The oldest rocks on Earth are from the Archean Era and include some granite, diorite, anorthosite, monzonite, and komatite.
