Classify and identify igneous features. This section will introduce you to common volcanic features including types of deposits and lava associated with different volcano types. Differentiate between ...Classify and identify igneous features. This section will introduce you to common volcanic features including types of deposits and lava associated with different volcano types. Differentiate between a dike and a sill Recognize different volcanic landforms Describe the development of continental and oceanic crusts. The learning activities for this section include the following: Reading: Pyroclastic Deposits Reading: Dikes and Sills Reading: Volcanic Landforms Self Check: Igneous Features