(1) With two exceptions, the relationships between a thin section and its diffraction pattern produced by a petrographic microscope are the same as the relationships between a photographic input and its diffraction pattern produced by a conventional ODA system.
(2) The paper presents the results of investigations of experimental pneumoconiosis caused by inhalational administration of coal dust of the III and IV stages of metamorphism, of the similar petrographic composition without quartz admixtures.
(3) Thin sections of urinary calculi are prepared by petrographic methods using Araldite as the mounting medium.
(4) 50 stones formed by Nigerians were analysed using a combination of qualitative chemical analysis, and petrographic analysis with the Reichert Model NR 333 254, polarization microscope.
(5) Areas of ectopic ossification were found in thin sections from 19 of 1,624 calculi submitted to a petrographic procedure, an incidence of 1.16 per cent.
Petrography
Definition:
(n.) The art of writing on stone.
(n.) The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology.
Example Sentences:
(1) It can also be used for many other applications, for example, in metallurgy, petrography and geostrategy.