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radiocarbon dating and potassium-argon dating

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Q: If an igneous rock is more than 3 billion years old what are the two best methods you could use to find the exact age of the rock?
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What evidence supports the hypothesis that Earth is 4.6 billion years?

Among other things, rocks have been found that are over 4 billion years old. The age of such rocks is determined by radioactive dating. Note that this is not "a" method, but perhaps 40 different methods (depending on the isotopes involved), which complement one another.The exact age of the Earth is harder to determine exactly; but basically, it must be at least as old as the oldest rocks found.


How many homes were destroyed by hurricane charley in 2004?

No one knows the exact number of homes destroyed by Charley in 2004, but estimated damage was $15 billion in the US.


How do intrusive and extrusive igneous rocks form?

Igneous rocks are formed when magma crystallizes and cools into a solid form. There are two types of igneous rocks--intrusive igneous rocks and extrusive igneous rocks.Intrusive:Intrusive igneous rocks are formed when the melted rock (magma) slowly rises toward, but does not reach the surface. As these pockets of magma cool slowly underground, minerals crystallize and the magma solidifies, becoming intrusive igneous rock, like granite and gabbro.Extrusive:Igneous rocks are also formed when volcanoes erupt, causing the magma to rise above the Earth's surface. When magma appears above the surface, it is called lava. Extrusive igneous rocks are formed as the lava cools above ground. Examples of extrusive igneous rock are basalt, rhyolite, pumice, and scoria.igneous rocks are formed by lavaWell When melted rock cools quickly, it hardens before any mineral crystals can grow large. as a result, igneous rocks that form above ground have small or no crystals :)Igneous Rocks are made of magma and lava because it comes out of a volcanoFrom volcanoes.from lava cooling.Molten rock cools and turns solid.


What is the exact shape of earth?

The exact shape of earth is "Oblate spheroid".


What is the exact gravity of Earth?

34.67589494

Related questions

What type of rock that forms due to cooling?

Lava will cool to form extrusive igneous rock. The exact type would depend on the composition of the lava.


What is the mohs value for an igneous rock?

"Igneous" is a general classification, not a specific type of rock. The hardness values vary depending on the exact composition.


How many boys are on the world?

As of the last estimate, there are approximately 1.01 billion boys under the age of 18 in the world. However, exact numbers can vary due to factors like population growth and data collection methods.


What is the answer that is close to the exact answer and is found by rounding or other methods?

an approximation


What is an answer that is close to the exact answer and is found by rounding or other methods?

an approximation


What spider catches its food by throwing a lasu could you tell me what spider this is and its exact definition on feeding methods?

the bowlus spider (spelling probably wrong) saw it on qi


If a volcano erupts what type of rock will form?

It will form extrusive igneous rock. Beyond that they exact type will vary.


What is the EXACT surface area of Saturn?

The surface area of planet Saturn is 16.49 billion sq miles (42.7 billion km²).


How many seconds are in 300 years?

around 9.5 billion 9,460,800,000 to be exact


For a large target population what are the sampling methods use to select the exact population?

There is no sampling method that will select the exact population.


What is the net worth of pablo escobar in 1989?

No exact numbers are available. It was around 25 billion. The person who is answering 9 billion is WRONG.


How do you find an exact age of your tree?

Two methods: - radiocarbon dating - dendrochronology