Radioactive decay dating

By studying other planets, we are learning more about our own planet.The effects of impacts and how they might affect us here on Earth, global climate change (Venus vs.Based on our study of meteorites and rocks from the Moon, as well as modeling the formation of planets, it is believed (pretty much well-established) that all of the objects in the Solar System formed very quickly about 4.56 billion years ago.

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Fossils are generally found in sedimentary rock — not igneous rock.

Scientists date igneous rock using elements that are slow to decay, such as uranium and potassium.

By dating these surrounding layers, they can figure out the youngest and oldest that the fossil might be; this is known as "bracketing" the age of the sedimentary layer in which the fossils occur.

started with 100% of the parent element, and 0% of the daughter element.

2, there has been no loss of the parent element due to erosion. there has been not gain of the daughter element due to intrusion. That there have been no factors that have influenced the rate of radioactive decay during the "life" of the rock.

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