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Why radiometric dating cannot be used directly in measuring sedimentary rocks?
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Sedimentary rocks can't be dated?
Sedimentary rocks cannot be given an absolute date by radiometric testing, but they can be given an estimated date from a few geological laws, for example if a bed of desert sandstone ins under a bed of limestone there is a law that says that the sandstone is older.
Can you find the absolute age of sedimentary rock layers?
Sometimes. The sediments themselves cannot be dated by radiometric methods, because the radiometric dates will reflect the original formation of the rocks from which the sediments were derived. But the sedimentary rocks may contain datable material, such a fossils of a characteristic form, or there may be a datable layer of volcanic material above or between sedimentary layers. Also, it is sometimes possible to determine the age of rocks by comparing the alignment of magnetic mineral grains within them with the history of magnetic pole reversals.
Can use radiometric dating on all minerals to tell their absolute age?
No, radiometric dating can only be used on certain minerals that contain radioactive isotopes. These minerals include zircon, potassium feldspar, and biotite, among others. Not all minerals contain radioactive isotopes, so radiometric dating cannot be applied to all minerals.
What is considered when measuring kinetic energy?
Kinetic energy cannot be measured directly, but the kinetic energy is just 1/2 times the mass times the velocity squared, and velocity can be measured directly.
What can radiometric dating tell us about the age of rock that law of superposition cannot?
Radiometric dating can give us the absolute age of the rock. Trace fossils and the Law of Superposition can only provide the relative age of the rock. Radiometric dating is far more specific in formation analysis.
True or False To find the specific age of rocks scientist cannot use radiometric dating?
true
How do unconformities make it difficult to determine ages in rock layers?
Sedimentary rock is composed of the weathered remains of a variety of rocks of all ages. It would therefore only be possible to date specific components of a sample, none of which would equate to the age of the sedimentary rock as a unit. Sedimentary rock is dated by its association in the geologic column with igneous and metamorphic rock which can be dated by radioactive dating techniques.
What type of rocks cannot turn into sedimentary rocks?
No rock. Any rock can turn into sedimentary rock, such as granite (igneous rock) and slate (metamorphic rock). Even sedimentary rock can turn into other sedimentary rock.
Which process cannot happen in a rock cycle?
Sedimentary melting cooling and hardening Metamorphic
Can high pressure can change an igneous rock into a sedimentary rock?
No, high pressure alone cannot change an igneous rock into sedimentary rock; however, the reverse is true. High pressure can change sedimentary rock into igneous rock.
True or false sedimentary rock can be formed from changes in igneous rock but idneous rock cannot be formed changes in the sedimentary rock?
False Sedimetary rocks can be formed from changes in igneous rock, and igneous rock can be from changes in sedimentary rock.
How many ml in 2lbs of brown beans?
Milliliters are for measuring volume. Pounds is for measuring mass (weight). You cannot convert one into the other.
