Q:

What is dolerite?

A:

A dolerite, also called a diabase, is an igneous rock, which means it was generated from the cooling and solidification of molten Earth material. It is also referred to as a volcanic rock.

The dolerite rock is similar to basalt, but it is coarser in texture and contains crystals that can be viewed with a hand-held lens because dolerite cools more slowly than basalt. Several dolerites are present in Ireland. The most famous is the dolerite plug at Slemish. Others include Corkey Rocks, Sandy Braes, Tievebulliagh and the columns at Ballygalley Head. Dolerite rocks are also found in dikes and sills.


Is this answer helpful?

Similar Questions

  • Q:

    What are interesting facts about sea caves?

    A:

    A sea cave, also called a littoral cave, begins as a small crack or weak spot in a cliff beside the sea. Ocean waves – salty water full of gravel and sand pound against this spot for centuries, slowly enlarging it and hollowing out a cave in the side of the cliff.

    Full Answer >
    Filed Under:
  • Q:

    How is granite formed?

    A:

    Granite is an igneous rock that forms when a pocket of magma rises into the upper levels of the Earth's crust and slowly cools. Cooling slowly gives granite, which is composed mainly of feldspar and quartz, enough time to develop large crystals that make the stone very hard and strong. Some granite, known as gneiss, can form from sedimentary rock that has gone through a long metamorphosis.

    Full Answer >
    Filed Under:
  • Q:

    What type of rock is granite?

    A:

    Granite is an igneous rock comprised primarily of quartz and feldspar. It is lightly-colored with a coarse texture and is considered an intrusive rock due to its formation underground.

    Full Answer >
    Filed Under:
  • Q:

    Why is my fridge not working?

    A:

    A refrigerator may not be cooling because the compressor may not be running or the electricity may be out. If interior lights are out in the refrigerator, a breaker may have been tripped and needs to be reset.

    Full Answer >

Explore