Geology Reference
In-Depth Information
Figure 9.9
Enclave swarm with clearly defined upper and lower boundary,
marking the remnant of a synplutonic dyke (Coastal Batholith, Peru).
Intrusion into fractures
Intrusion into early fractures
synplutonic dykes
Mingling of magma bodies
Mingling, mixing, and hybridisation
Supply of mafic magma
Figure 9.10
Summary of the different magma mingling structures preserved dur-
ing an encounter between invading mafic magma and its granitic host. The style
and degree of interaction is controlled by the crystallinity of the host magma,
which will increase with time, and the supply (intrusion) rate of mafic magma.
