Magmatic processes in the Eastern Volcanic Zone of Iceland
Basaltic volcanism is an important consequence of mid-ocean ridge (MOR) spreading. On arrival in the crust and uppermost mantle, melts are processed in magma reservoirs prior to erup- tion, leading to geochemical signals of mantle melting being obscured by mixing, crystallisation and degassing proce...
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| Format: | Thesis |
| Language: | English |
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2014
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| Online Access: | http://eprints.esc.cam.ac.uk/3064/ http://eprints.esc.cam.ac.uk/3064/1/deave%20image1.png http://eprints.esc.cam.ac.uk/3064/2/dneave_thesis.pdf |
| Summary: | Basaltic volcanism is an important consequence of mid-ocean ridge (MOR) spreading. On arrival in the crust and uppermost mantle, melts are processed in magma reservoirs prior to erup- tion, leading to geochemical signals of mantle melting being obscured by mixing, crystallisation and degassing processes. In order to use the compositions of primitive crystals to interrogate both mantle melting and magma reservoir processes, it is thus important to understand not only how crystals relate to the melt in which they are erupted, but the relationships between indi- vidual compositional zones within crystals. |
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