Note the columnar joints in igneous rocks in Figs. 3.14 and 3.17. What causes them to form, and how are they oriented relative to the shape of the body?
Answer to relevant QuestionsWhat minerals commonly fill vesicles to form amygdules as in Fig. 3.10?In which type of climate is chemical weathering most effective?What are the common products of oxidation?Are all the ions listed in the previous problem carried away to the ocean and hence lost to the soil?What are the products of chemical weathering in a subtropical to tropical climate?
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