0 (of rocks) formed from magma (= very hot liquid rock that has cooled) --
1 describes rocks made from magma (= liquid rock) that has cooled and become solid --
The book is structured by subdivision into igneous activity characteristic of different tectonic environments.
The book is divided into 13 chapters based on igneous processes.
Examples of fluid-mineral-rock interactions in sedimentary, igneous (including oceanic) and metamorphic environments are discussed; methods of thermometry and effects of volatile loss are reviewed.
For the geologist, these two plume types are identified respectively with the large igneous province, and the hotspot trail.
Igneous lithologies vary from diorite through granodiorite, and granite to pegmatitic granite.
These coarse-grained patches are igneous in origin and grade into finer-grained gabbro at the edges.
The preservation of abundant igneous plagioclase, however, indicates that the body largely failed to equilibrate at eclogite-facies conditions.
All divisions exhibit igneous layering on a variety of scales.
