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What best describes the information given by radiometric dating?
Wiki User
∙ 12y ago
Age is based on fossils that are found in the rock.
Wiki User
∙ 12y ago
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How are the ages of rocks estimated?
There is a wealth of dating techniques for rocks. Very young materials (mostly soft sediments) are dated via 14C-dating, warve counting, tree-ring counting, lichenometry (sizes of lichen), thermoluminescence and stuff like that but for actual rock material one usually takes biostratigraphy or radiometric dating. Biostratigraphy is a relative dating technique and can be applied only to sedimentary rocks and very slightly metamorphosed sediments as it relies on the identification of specific fossil materials that were only present at a given relatively short period of time in the geologic past. In that way one can for example define that a rock is Jurassic or Cretaceous when one finds a belemnite or it has to be paleozoic if there are trilobites etc. The absolute ages are mostly derived from radiometric dating which relies on measuring the isotopic composition and certain element ratios in the rock. Common rock dating techniques are U-Pb dating, Rb-Sr, Ar-Ar, U-Th disequilibrium and others. Radiometric dates do not necessarily give an information about when the rock was formed (crystallized from a magma) but may instead bear information about when the rock experienced metamorphism or cooled down below a certain temperature.
Determining how the sea floor changes over time has given scientists information about the?
formation rate of the ocean crust
What are the ingredients in domestos bleach?
I was always told that it was the bi-products from I C I this information was given to me as an ex employee of Domestos in the 1960's
Given 18.32 grams of aluminum and excess oxygen how many grams of oxygen are used?
This question needs additional information to enable me correctly answer it.
Who is responsible for chernobyl?
See the link given below for information on nuclear power in the Ukraine. Sections headed 'Radioactive Waste Management' and 'Decommisioning' are relevant to this question.
What evidence is given to tell how old the moon is?
Using standard radiometric dating of rocks returned from the Moon by the Apollo missions.
Which one of the following best describes volcanism in the Andes Mountains of South America?
When the following information is not given people will not be able to know which describes the volcanism. The information on what the following is should be included.
How are the ages of rocks estimated?
There is a wealth of dating techniques for rocks. Very young materials (mostly soft sediments) are dated via 14C-dating, warve counting, tree-ring counting, lichenometry (sizes of lichen), thermoluminescence and stuff like that but for actual rock material one usually takes biostratigraphy or radiometric dating. Biostratigraphy is a relative dating technique and can be applied only to sedimentary rocks and very slightly metamorphosed sediments as it relies on the identification of specific fossil materials that were only present at a given relatively short period of time in the geologic past. In that way one can for example define that a rock is Jurassic or Cretaceous when one finds a belemnite or it has to be paleozoic if there are trilobites etc. The absolute ages are mostly derived from radiometric dating which relies on measuring the isotopic composition and certain element ratios in the rock. Common rock dating techniques are U-Pb dating, Rb-Sr, Ar-Ar, U-Th disequilibrium and others. Radiometric dates do not necessarily give an information about when the rock was formed (crystallized from a magma) but may instead bear information about when the rock experienced metamorphism or cooled down below a certain temperature.
Radiometric dating or carbon dating which is more accurate?
Carbon dating (also called radiocarbon dating) is a very useful archeological tool, but it does have its limitations. Dates derived from carbon dating aren't exact, and they always have a margin of error. For example, a particular object that has been dated might a radiocarbon age of 4500 years, plus or minus 30 years. The margin of error depends on the object, but for samples younger than 10,000 years, the uncertainty is usually at most 40 years. For older samples, the uncertainty period can be several centuries. The reason that carbon dating isn't exact is due to two reasons. First of all, our instruments used to detect the amount of radioactivity in samples aren't perfect. Second of all, in the real world, many events can influence and distort the amount of Carbon-14 present in a sample. Events such as volcanic eruptions can increase or reduce the amount of Carbon-14. Scientists need to account for this with a margin of error. In addition, carbon 14 decays with a half life of about 5,700 years and, even with good quality samples, dating can only go back to around 60,000 years. To date anything older than that, scientists need to rely upon other dating methods, like relying upon other isotopes such as potassium and argon. See the links below for more information. The first one describes the process of carbon dating in general, and the second one discusses the accuracy of carbon dating.
How do you find the missing dimensions in generic rectangle?
You must use the information given that describes that particular rectangle,together with the laws, equations, and formulas you have that relate to theproperties of rectangles, to derive the missing information.The answer will depend on what dimension is missing and what information you do have.
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Their are many online dating sites out their that for one is safe, reliable and has the one hundred percent responsibility of the user. You have to be very careful of what type of information is being given out.
What is the primary technique for determining the absolute age of a rock?
well its do to the sediment in a rock by it layering
What describes the wavelength of a sound wave?
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what information about the mother is given in the expositon
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The set of all points in a plane at a given distance from a given point.clock
What is the area of a trapezium with height 3cm and 2 parallel lengths of 3cm and 3cm?
The information given describes a square and not a trapezium. Area of the square = 3*3 = 9 square cm
Draw a pie chart with given information?
I'd have to know the given information
