Knowledge and Geological Comments understanding techniques and skills b. The substitution of one Investigation of magma Candidates should be able to element for another in crystallisation and interpret phase diagrams the crystal structure of differentiation processes between solid solution end a mineral depends using phase diagrams members from: upon atomic radius (plagioclase feldspar, Ca-rich plagioclase and valency; solid olivine). (Albite) to Na rich solution as exemplified (Anorthite) by olivine and Mg-rich olivine (Fosterite) plagioclase feldspar. to Fe-rich (Fayalite). c. The formation of Analysis of ocean survey Candidates should be familiar magma chambers data to investigate current with new models of ocean ridge under ocean ridges models of how oceanic formation (using data from and rises can be ridges (particularly mid seismic tomography and de e p interpreted from ocean ridges-MORs) are ocean drilling) involving models. formed (e.g. RRS James symmetrical and Cook 2016). – asymmetrical spreading ocean core complexes (OCC) the significance of serpentinite. https://teacheratseablog. wordpress.com/tag/science/
Knowledge and understanding Geological techniques and skills Comments b. The substitution of one element for another in the crystal structure of a mineral depends upon atomic radius and valency; solid solution as exemplified by olivine and plagioclase feldspar. Investigation of magma crystallisation and differentiation processes using phase diagrams (plagioclase feldspar, olivine). Candidates should be able to interpret phase diagrams between solid solution end members from: Ca-rich plagioclase (Albite) to Na rich (Anorthite) Mg-rich olivine (Fosterite) to Fe-rich (Fayalite). c. The formation of magma chambers under ocean ridges and rises can be interpreted from models. Analysis of ocean survey data to investigate current models of how oceanic ridges (particularly mid ocean ridges-MORs) are formed (e.g. RRS James Cook – 2016). Candidates should be familiar with new models of ocean ridge formation (using data from seismic tomography and de e p ocean drilling) involving symmetrical and asymmetrical spreading ocean core complexes (OCC) the significance of serpentinite. https://teacheratseablog. wordpress.com/tag/science/
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