(ii) Indicate whether each of the following statements is true or false, by circling the correct option in each case.
(a) Basic lava has a very high silica content. True
False
(b) Lava with a high silica content is most associated with explosive eruptions. True
False 2016, Part One, Q2 (8 marks) 4. Structure of a Volcano
Examine the diagram and answer each of the following questions.
(i) Match each of the letters A, B, C and D with the feature that best matches it in the table below.
4 × 1 mark
(ii) Indicate whether plutonic processes or volcanic processes are most associated with each of the features, by ticking the correct box in the table below.
Feature Sill
Pyroclastic sediment Dyke Lava flow
2015, Part One, Q1 (8 marks) 26 D 4 × 1 mark (i) Letter (ii) Plutonic (ii) Volcanic C A B 2 marks 2 marks
