Geology Articles

• Fossils
  Dinosaurs
  Extinction
  Geography
  Origin of Life
  Geology
   

  Mesozoic

  The Mesozoic Era is one of three geologic eras of the Phanerozoic eon. The Mesozoic includes three geologic periods: from oldest to youngest, they are the Triassic, the Jurassic and the Cretaceous ... > more
• Volcanoes
  Natural Disasters
  Sports Science
  Geology
  Global Warming
  Early Climate
   
  

  Volcano

  A volcano is an opening (or rupture) in the Earth's surface or crust, which allows hot, molten rock, ash, and gases to escape from deep below the surface. Volcanic activity involving the extrusion of ... > more
• Global Warming
  Early Climate
  Climate
  Ice Ages
  Fossils
  Environmental Issues
   
  

  Geologic temperature record

  This article is devoted to temperature changes in Earth's environment as determined from geologic evidence on multi-million to billion (109) year time scales. The last 3 million years have been ... > more
• Water
  Nature of Water
  Sports Science
  Recycling and Waste
  Floods
  Thermodynamics
   
  

  Hydrogeology

  Hydrogeology is the part of hydrology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust (commonly in ... > more
• Water
  Natural Disasters
  Floods
  Geology
  Earth Science
  Earthquakes
   
  

  Quicksand

  Quicksand is loose, water-logged soil that yields easily to weight or pressure. It can be formed when sand, silt, clay, or other grainy soil is saturated or supersaturated by water flowing from below ... > more
• Global Warming
  Oceanography
  El Nino and La Nina
  Climate
  Floods
  Geography
   
  

  Sea level

  Mean sea level (MSL) is the average (mean) height of the sea, with reference to a suitable reference surface. Defining the reference level, however, involves complex measurement, and accurately ... > more
• Near-Earth Object Impacts
  Asteroids, Comets and Meteors
  Geology
  Saturn
  Earth Science
  Moon
   
  

  Impact crater

  An impact crater is a circular depression on a surface, usually referring to a planet, moon, asteroid, or other celestial body, caused by a collision of a smaller body (meteor) with the ... > more
• Volcanoes
  Natural Disasters
  Fossils
  Origin of Life
  Earthquakes
  Earth Science
   

  Supervolcano

  A supervolcano refers to a volcano that produces the largest and most voluminous kinds of eruption on Earth. The actual explosivity of these eruptions varies, but the sheer volume of extruded magma ... > more
• Geography
  Weather
  Severe Weather
  Climate
  Earth Science
  Global Warming
   
  

  Monsoon

  A monsoon is a periodic wind, especially in the Indian Ocean and southern Asia. The word is also used to label the season in which this wind blows from the southwest in India and adjacent areas that ... > more
• Geography
  Fossils
  Earth Science
  Geology
  Origin of Life
  Environmental Policy
   

  Cenozoic

  The Cenozoic Era is the most recent of the four classic geological eras. The Cenozoic is divided into two periods, the Palaeogene and Neogene, and they are in turn divided into epochs. The Palaeogene ... > more
• Geography
  Earth Science
  Earthquakes
  Geology
  Oceanography
  Natural Disasters
   
  

  Mountain

  A mountain is a landform that extends above the surrounding terrain in a limited area. A mountain is generally higher and steeper than a hill, but there is considerable overlap, and usage often ... > more
• Water
  Geography
  Ecosystems
  Global Warming
  Ecology
  Floods
   
  

  Lake

  A lake is a body of water or other liquid of considerable size surrounded entirely by land. A vast majority of lakes on Earth are fresh water, and most lie in the Northern Hemisphere at higher ... > more

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