litho stratigraphic

lithostratigraphy

[lith-oh-struh-tig-ruh-fee]
noun
the study or character of stratified rocks based solely on their physical and petrographic features.

Origin:
1955–60; litho- + stratigraphy

lithostratigraphic [lith-oh-strat-i-graf-ik] , adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
lithostratigraphy   (lĭth'ō-strə-tĭg'rə-fē)  Pronunciation Key 
The scientific study and categorization of rock strata based on their lithology (color, texture, and composition). Compare biostratigraphy.
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