What minerals are most likely to be found in a rock from a shield?
The mineral that is not found in Bowen's Reaction Series is Garnet. The most likely minerals to be found in a rock from a shield are Olivine, Pyroxene, and Plagioclase Feldspar.
Bowen's Reaction Series
Bowen's Reaction Series is a classification scheme that describes the order in which minerals crystallize from a cooling magma. This series helps geologists understand the sequence of mineral formation during the cooling process.
Minerals in Bowen's Reaction Series
The minerals that are part of Bowen's Reaction Series are Olivine, Orthoclase (Potassium) Feldspar, Muscovite, and Quartz. These minerals crystallize in a specific order as the magma cools.
Minerals in Shield Rocks
Shield rocks are typically formed from basaltic lava flows with low silica content. The most common minerals found in shield rocks are Olivine, Pyroxene, and Plagioclase Feldspar. These minerals form as the basaltic magma cools quickly on the surface.
Conclusion
In conclusion, Garnet is the mineral that is not included in Bowen's Reaction Series, while Olivine, Pyroxene, and Plagioclase Feldspar are the most likely minerals to be found in a rock from a shield.