How do submerging and emergent coastlines form Flashcards
Submergent coastlines formation
These form when old glacial valleys that have since been submerged e.g fjords in Norway
Emergent coastlines formation
These occur when land rises over thousands of years and can cause raised beaches such as in Scotland
What are the three main types of rocks?
Igneous, sedimentary, metamorphic
What are examples of igneous rocks?
Granite, diorite, basalt
What is a characteristic of igneous rocks?
Crystalline, resistant, impermeable
What are examples of sedimentary rocks?
Limestone, chalk, sandstone, shale
How are sedimentary rocks formed?
From sediment accumulation and compaction
What is a characteristic of jointed sedimentary rocks?
Permeable
What makes chalk a unique sedimentary rock?
Has air spaces between particles
What is a characteristic of shale?
Fine and compacted, making it impermeable
What are examples of metamorphic rocks?
Marble, schist, slate
What is a characteristic of metamorphic rocks?
Very hard, resistant, impermeable
What are unconsolidated materials?
Loose and easily displaced materials
What happens to unconsolidated materials when compacted?
Particles can stick together and form an impermeable layer
Fill in the blank: Igneous rocks are _______.
crystalline, resistant, impermeable