The concept of time is central to geology. Determining the age of rocks and sediments and creating a time scale allows geologists to sequentially order events in.
Table of contents
- The Age of the Earth - Ocean Floor Sediment as a Creationist Clock: Jason Tentinger
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- Dating of Marine Sediments for Archaeological Purposes
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The Age of the Earth - Ocean Floor Sediment as a Creationist Clock: Jason Tentinger
View Full GeoRef Record. Citing articles via Web Of Science It is effective for hundreds of thousands of years, and dates how long the sediment has been buried.
There are so many other methods of dating Quaternary sediments and organic material that it is impractical to cover them all here in detail. Uranium-series uses the decay of uranium and thorium isotopes U, U and Th in calcites in particular, such as stalactites and stalagmites in caves.
Potassium-argon and argon-argon dating can be used to date the formation of volcanic rocks. Older marine sediments can be dated using palaeo-magnetism. This is caused by a number of factors, including variations in solar radiation, magnetic storms, and internal geophysical factors.
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Unconsolidated sediments contain magnetic minerals, such as those on the continental shelf and slope. These minerals are magnetised during formation. The sediments can be compared to palaeo magnetostratigraphic data, and this can be used as a proxy age determination. This site uses Akismet to reduce spam. GSA Bulletin 96 3: You do not currently have access to this article. You could not be signed in. Librarian Administrator Sign In.
Dating of Marine Sediments for Archaeological Purposes
Email alerts New issue alert. View Full GeoRef Record. Citing articles via Web Of Science