ANSWER: Sedimentary rocks cannot be dated directly using radiometric dating, which is based on the idea that when rocks are in liquid form, their radiometric clock resets. This technique is generally used to date igneous and metamorphic rock, which are rocks that were once melted due to extreme heat and pressure. Radiometric dating determines how long ago the liquid rock solidified into solid rock. Sedimentary rock on the other hand consists of sedimentary particles which were removed and deposited somewhere else by some sort of fluid generally wind and water.
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How can radioactive decay be used to date rocks? | Socratic
Igneous rocks are the best type of rock to be used when doing radiometric dating. Igneous rocks are formed when magma and lava that have been cooled. Igneous and metamorphic. It's called radiometric dating. Radiometric dating--the process of determining the age of rocks from the decay of their radioactive elements--has been in widespread use for over half a century. Relative dating is used to determine the relative ages of geologic strata, artifacts, historical events, etc. Radiometric dating is the principal source of information about the absolute age of rocks and other geological features, including the age of the Earth itself, and can be used to date a wide range of natural and man-made materials.
RADIOMETRIC TIME SCALE
The abundance ratio of rocks to determine the what type of rock layers and do we. Some ofthe different kinds of radioactive atoms used to date objects are shown in. Radiocarbon dating is normally suitable for organic materials less than..
Radiometric dating , radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon , in which trace radioactive impurities were selectively incorporated when they were formed. The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay. Together with stratigraphic principles , radiometric dating methods are used in geochronology to establish the geologic time scale.