Petrology Chapter-2Gautam Sen

Nature of Magma

Atomic Structure of Silicate Melt

Magma Viscosity

Magma Types & their Viscosities

More viscosity

Densities of magmas

Density-Viscosity-Depth

Experimental Crystallization of tholeiitic basalt at 1 atm

Undercooling & nucleation

Cooling Rate vs. Sequence

CSD: Crystal Size Distribution

Pa hoe hoe & Aa Lava

Explosive eruptions

PyroclasticDeposits

Intrusions

Intrusions

Modal classification of Coarse-grained Rocks

QAPFClassification

Alkali-silica classification