Geography final

    Cards (21)

    • How are igneous rocks formed?
      From magma that flows to the surface
    • What are igneous rocks formed from?
      Magma that has reached the surface
    • What are the main igneous rocks found in Northern Ireland?
      Basalt, granite, and dolerite
    • What are the characteristics of sedimentary rocks?
      • Formed from eroded and weathered materials
      • Layered structure
      • Transported and deposited under the sea
    • How do sedimentary rocks form?
      From eroded materials deposited over time
    • What are the main sedimentary rocks found in Northern Ireland?
      Chalk, limestone, clay, shale, greywacke, sandstone
    • What are metamorphic rocks and how do they form?
      • Changed rocks from igneous or sedimentary
      • Formed by partial melting near volcanoes or mantle
    • What are the main metamorphic rocks found in Northern Ireland?
      Schist and gneiss
    • What causes metamorphic rocks to change?
      Being partly melted near volcanoes or mantle
    • How do igneous, sedimentary, and metamorphic rocks differ in formation?
      Igneous from magma, sedimentary from erosion, metamorphic from change
    • What are ammonites related to?
      Squids and octopuses
    • What is the primary characteristic of ammonite shells?
      They are usually chambered and spiral-shaped
    • When did ammonites go extinct?
      250 million years ago
    • What are the main body parts of ammonites?
      Head, body, tail, and hard cover
    • What are trilobites?
      Extinct marine arthropods
    • What are bivalves?
      Soft-bodied animals with two shells
    • Where do bivalves typically live?
      In the sea and brackish water
    • What is a common habitat for bivalves?
      Partly in sand or mud
    • What are two examples of bivalves?
      Oysters and clams
    • What are the key characteristics of bivalves?
      • Soft-bodied animals
      • Have two shells (valves)
      • Live in sea and brackish water
      • Found partly in sand or mud
    • What distinguishes ammonites from trilobites?
      • Ammonites: Chambered spiral shells, related to squids
      • Trilobites: Extinct marine arthropods, no shells
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