Physical Geology of Shallow Magmatic Systems

This book offers a high-level summary of shallow magmatic systems (dykes, sills and laccoliths) to support geoscience master and PhD students, scientists and practicing professionals. The product of the LASI (Laccoliths and Sills conference) workshop, it comprises thematic sections written by one or more experts on the respective field. It features reviews concerning the physical properties of magma, geotectonic settings, and the structure of subvolcanic systems, as well as case studies on the best-known systems. The book provides readers a broad and comprehensive understanding of the subvolcanic perspective on pluton growth, which is relevant for mineralogical processes as well as the genesis of mineral deposits.

Introduction.- Physical properties of magma / Behaviour of magma at shallow levels.- Geotectonic settings: magma transport and typical shallow level systems.- Types of shallow level complexes.- Geometry and dimension.- Association with volcanic centres.- Volcanic-plutonic connection.- Structure of subvolcanic systems.- Internal structures.- Textures in the host.- Geophysics and remote sensing.- Modelling emplacement and cooling.- Analog experiments.- Numerical modelling.- Shallow-level magmatic systems and the environment.- Landslides and initiation of eruptions.- Climate change.- Societal aspects of shallow level igneous systems.- Raw materials.- Associated mineralizations.- Hydrogeology.- Shallow level bodies in hydrocarbon fields.- Case studies on shallow level magmatic complexes.- Halle Volcanic Complex.- British Cenozoic Igneous Province.- Elba Island.- Henry Mtns.- Karoo.- Iceland.- Bushveld.