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  • The Australian Museum is closed to the public until mid-2020 to enable a major renovation. Project Discover is creating a renewed museum to match its world-class collection.

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  • Volcanic landforms
    https://australianmuseum.net.au/learn/minerals/shaping-earth/volcanic-landforms/

    Each type of volcanic massif (structure) contains lavas, pyroclastic rocks and intrusions, but these differ in proportions and compositions.

    Published 11 February 2009
    volcano geoscience geological processes earth sciences Earth and Environmental Science
  • Magma
    https://australianmuseum.net.au/learn/minerals/shaping-earth/magma/

    Magma is hot molten mobile rock. Igneous rocks form when magma cools and solidifies. Magmas come out of active volcanoes as lavas.

    Published 11 February 2009
    geological processes geoscience earth earth sciences Earth and Environmental Science geology
  • Volcanic rocks
    https://australianmuseum.net.au/learn/minerals/shaping-earth/volcanic-rocks/

    Volcanic rocks are divided into three main types: basaltic, volcaniclastic and pyroclastic.

    Published 11 February 2009
    volcano geological processes geoscience earth sciences Earth and Environmental Science geology
  • Tektites
    https://australianmuseum.net.au/learn/minerals/shaping-earth/tektites/

    Tektites are small, pebble-like glassy objects of Earth material that have been melted by meteorite impact, splashed up into our atmosphere, and fallen to Earth again under gravity.

    Published 24 December 2009
    space geoscience meteorite earth earth sciences Earth and Environmental Science
  • Igneous intrusions
    https://australianmuseum.net.au/learn/minerals/shaping-earth/igneous-intrusions/

    Molten magma can invade the Earth's upper layers and then solidify as igneous intrusions.

    Published 11 February 2009
    geological processes geoscience earth sciences Earth and Environmental Science geology
  • Gem deposits
    https://australianmuseum.net.au/learn/minerals/gemstones/gem-deposits/

    Gem deposits are a very important group of mineral deposits, forming in a variety of geological environments and occurring in rocks of all ages from thousands of millions to recent times.

    Published 24 December 2009
    geoscience minerals earth sciences Gems gemstone
  • Types of metamorphism
    https://australianmuseum.net.au/learn/minerals/shaping-earth/types-of-metamorphism/

    There are several different types of metamorphism, including dynamic, contact, regional, and retrogressive metamorphism, that form and shape rocks.

    Published 11 February 2009
    geological processes geoscience earth sciences Earth and Environmental Science geology
  • Water and sedimentary transport
    https://australianmuseum.net.au/learn/minerals/shaping-earth/water-and-sedimentary-processes/

    Water plays a vital role in most sedimentary processes. Pure water itself has little effect on rocks. It is the dissolved gases in water, particularly carbon dioxide, that cause the chemical decay of minerals and mineral dissolution.

    Published 11 February 2009
    geological processes geoscience earth sciences Earth and Environmental Science geology
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The Australian Museum respects and acknowledges the Gadigal people of the Eora Nation as the First Peoples and Traditional Custodians of the land and waterways on which the Museum stands.
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We acknowledge Elders past, present and emerging.
This website may contain names, images and voices of deceased Aboriginal and Torres Strait Islander peoples.

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