Overprinting (geology): Difference between revisions
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{{references|date=September 2015}} |
{{references|date=September 2015}} |
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[[image:Orthogneiss Geopark.jpg|thumb|In this [[orthogneiss]] from the [[Czech Republic]] the original [[igneous rock|igneous]] [[rock texture]] has been overprinted by [[foliation (geology)|foliation]] associated with [[metamorphism]].]] |
[[image:Orthogneiss Geopark.jpg|thumb|In this [[orthogneiss]] from the [[Czech Republic]] the original [[igneous rock|igneous]] [[rock texture]] has been overprinted by [[foliation (geology)|foliation]] associated with [[metamorphism]].]] |
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'''Overprinting''' refers to a [[geological |
'''Overprinting''' refers to a [[geology|geological]] process that leaves marks altering the marks of an earlier process. Examples include various phases of [[Deformation (mechanics)|deformation]] of rocks in such a way that the initial structures are modified, sometimes even beyond recognition. |
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[[Geochemistry|Geochemical]] signatures can also be overprinted when the geochemistry of a geological body is changed by eliminating or modifying the earlier geochemical signature. |
[[Geochemistry|Geochemical]] signatures can also be overprinted when the geochemistry of a geological body is changed by eliminating or modifying the earlier geochemical signature. |
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Revision as of 20:48, 28 September 2017
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Overprinting refers to a geological process that leaves marks altering the marks of an earlier process. Examples include various phases of deformation of rocks in such a way that the initial structures are modified, sometimes even beyond recognition.
Geochemical signatures can also be overprinted when the geochemistry of a geological body is changed by eliminating or modifying the earlier geochemical signature.