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.Learn More
Continental climate characteristics include cold winters, hot summers and little rainfall. Continental climate areas are transitional zones between polar and mild climates that experience extreme annual variations in temperature and seasonal changes, according to National Geographic. These areas don’t have large water bodies nearby, states Wikipedia.Full Answer >
Avalanches occur when large amounts of snow fall from steep slopes, either due to a break or fissure in the snow pack or due to an accumulation of too much snow for the slope's angle. In some cases, a snow pack can fracture due to a hiker or skier's actions, or rising temperatures may render the accumulated snow too unstable to stick to the slope.Full Answer >
The solar radiation that heats the Earth's crust is the driving force behind the water cycle. The water cycle is sometimes referred to as the hydrologic cycle and is a process through which Earth's water continuously moves between the surface of the planet and the atmosphere.Full Answer >
The Earth's axis is positioned at an angle of 23.5 degrees away from the plane of the ecliptic. An objects axis, or axial tilt, also referred to as obliquity, is the angle between an objects orbital axis and rotational axis, or regularly, the angle between its orbital plane and equatorial plane.Full Answer >