Practical Approach to Petrology

The igneous section includes texture, mega- and microstructures and petrography of igneous rocks, in addition to norm, modal analysis and graphic plot of petrochemistry data. The chapter on norm includes seventy-five problems with answers. The metamorphic section deals with fabric and petrography of metamorphic rocks and triangular (ACF, AKF and AFM) diagrams. The sedimentary section encompasses texture, structure, ichnofossils, classification and petrography of sedimentary rocks. Chapter on grain size includes detailed laboratory procedure with worked out problems. Chapter on paleocurrent and palaeohydrological analysis elaborates methods of tilt correction, drawing of rose diagram, computation of different statistical parameters and worked out problems. Heavy mineral analysis chapter depicts the separation and identification techniques. Optical properties of thirty-six heavy minerals are given in alphabetical order for easy reference.