1. The resistance of rock forming minerals to weathering is expressed by Bowen's reaction series . 2. When a reaction series is not significantly influenced by polar effects, the Taft equation reduces to: 3. A chain reaction series of crashes resulted, involving three tractor-trailers and over 60 other vehicles. 4. Textures of rocks provide insights, as documented in the early 1900s by Bowen's reaction series . 5. Bowen's reaction series is important for understanding the idealised sequence of fractional crystallisation of a magma. 6. The chemical abundance and the rate of cooling of magma typically forms a sequence known as Bowen's reaction series . 7. Granite is rich in quartz and potassium feldspars ( like orthoclasse ), the later products of the Bowens reaction series . 8. The crater was named by the astronauts after geologist Norman L . Bowen, originator of Bowen's reaction series . 9. Generally, restite is composed of a predominance of mafic minerals because these are harder to melt ( see Bowen's reaction series ). 10. For the definition reaction series ? was set to 1 and " E s " for the reference reaction was set to zero.