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petrography
(redirected from petrographical)

   Also found in: Encyclopedia 0.01 sec.
pe·trog·ra·phy  (p-trgr-f)
n.
The description and classification of rocks.

pe·trogra·pher n.
petro·graphic (ptr-grfk), petro·graphi·cal (--kl) adj.
petro·graphi·cal·ly adv.

petrography [pɛˈtrɒgrəfɪ]
n
(Earth Sciences / Geological Science) the branch of petrology concerned with the description and classification of rocks Abbreviation petrog
petrographer  n
petrographic  [ˌpɛtrəˈgræfɪk], petrographical adj
petrographically  adv

petrography  (p-trgr-f)
The description and classification of rocks, especially by means of microscopic analysis.

petrography
the branch of geology that describes and classifies rocks, usually after microscopic study. Cf. lithology. — petrographer, n.petrographic, petrographical, adj.
See also: Geology


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Glacial stratigraphy in the area is based only on formal principles such as the correlation of till units between boreholes, difference in till colour and petrographical and mineral composition (Ulsts & Majore 1964; Konshin et al.
Here the results of previous geochemical, mineralogical, and petrographical studies are supplemented by new data from eight drill cores (Fig.
A petrographical report of 22 core samples from the Anna Lake Deposit has been completed by Dr.
 
 
 
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