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8 matches found for "continental collisions"

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Jade sheds light on Guatemala's geologic history

A new analysis of jade found along the Motagua fault that bisects Guatemala is underscoring the fact that this region has a more complex geologic history than previously thought. Because jade ...

Earth Sciences |

Earth's crust melts easier than previously thought

A University of Missouri study published in Nature this week has found that the Earth's crust melts easier than previously thought. In the study, researchers measured how well rocks condu...

Earth Sciences |

Earthquakes may endanger New York more than thought

A study by a group of prominent seismologists suggests that a pattern of subtle but active faults makes the risk of earthquakes to the New York City area substantially greater than formerly believed. ...

Earth Sciences |

Why a Rocky Mountain high?

A University of Utah study shows how various regions of North America are kept afloat by heat within Earth’s rocky crust, and how much of the continent would sink beneath sea level if not for heat tha...

Earth Sciences |

3-D seismic model of vast water reservoir revealed

A seismologist at Washington University in St. Louis has made the first 3-D model of seismic wave damping — diminishing — deep in the Earth's mantle and has revealed the existence of an undergrou...

Earth Sciences |

Climate changes locked inside microfossils

Fossilised remains of sea creatures are commonly found in rocks in the mountains of the Basque Country. So, at some time in the past, Euskal Herria was under the sea. For example, during the Pa...

Earth Sciences |

New evidence says Earth’s greatest extinction caused by ancient meteorite

Long before the dinosaurs ever lived, the planet experienced a mass extinction so severe it killed 90 percent of life on Earth, and researchers at the University of Rochester think they’ve...

Earth Sciences |

Scientists confirm age of the oldest meteorite collision on Earth

A team of geologists has determined the age of the oldest known meteorite impact on Earth – a catastrophic event that generated massive shockwaves across the planet billions of years before a s...

Earth Sciences |

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