Geological dating problems


Paleomagnetism can be used in conjunction with other correlation or dating methods to establish the age or rocks or to decipher changes in a rock's orientation through time.In Menlo Park, contact: Dwayne Champion for more information about the paleomagnetic lab.A geologic map or report typically is only a summary of investigations that frequently involve the collecting and processing of hundreds of rock samples, followed by the evaluation and interpretation of data from a variety of analytical techniques.A relative age is the age of a fossil organism, rock, or geologic feature or event defined relative to other organisms, rocks, or features or events rather than in terms of years.



As a result, oxygen isotope data extracted from shell-bearing sediments can provide information about cycles of glaciation (and climate change), and can be used for relative dating.

Relatively young deposits can be sometimes dated using tree rings, varved-lake sediments, coral growth patterns, and other methods.


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