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butalik [34]
3 years ago
14

The oldest age-dated rocks or minerals found on earth are:

Biology
2 answers:
goldfiish [28.3K]3 years ago
5 0
They are called Zircons, they date back to almost 4.4 billion years ago. Hope this helps, please give me the brainiest, thanks.
NeTakaya3 years ago
3 0
Hello there,
This rock is found in Jack Hills, Australia, where rocks were found to contain the oldest known minerals on Earth, a 4.4 billion-year-old zircon<span>. 

Hope this helps :))

~Top
</span>
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which of the following fields of science supports evolution? a. astronomy b.geology c.biology d. all of these
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Answer:

Explanation:

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Answer:

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Answer:

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Explanation:

Edit

The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust (at about 10 km (6.2 mi) under the oceans and about 35 km (22 mi) under the continents) and ends at the top of the lower mantle at 670 km (420 mi). Temperatures range from approximately 200 °C (392 °F) at the upper boundary with the crust to approximately 900 °C (1,650 °F) at the boundary with the lower mantle. Upper mantle material which has come up onto the surface is made up of about 55% olivine, 35% pyroxene and 5 to 10% of calcium oxide and aluminum oxide minerals such as plagioclase, spinel, or garnet, depending upon depth.

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Question 3
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