Tag: Geology

  • Nation & World

    John H. Shaw steps down

    John H. Shaw, the Harry C. Dudley Professor of Structural and Economic Geology, steps down at the end of June, having served as chair of the Department of Earth and Planetary Sciences since 2006.

    6 minutes
    John Shaw against a black and rainbow background
  • Nation & World

    Tracking rivers to read ancient glaciers

    In a new study, Harvard researchers say they may be able to estimate how glaciers moved by examining how the weight of the ice sheet altered topography and led to changes in the course of rivers. The study is described in a paper published in Geology.

    5 minutes
    Tamara Pico.
  • Nation & World

    William Cromie, Gazette science writer, dies at 84

    William J. Cromie, a longtime Harvard Gazette science writer who retired in 2007 after 18 years of writing about the latest scientific findings out of Harvard laboratories and field research, has died at his home in Somerville, Mass., at age 84.

    5 minutes
  • Nation & World

    Rock sleuths

    In one of the largest studies of its kind, Harvard researchers have found that carbon records from the mid-Neoproterozoic era can be “read” as a faithful snapshot of the surface carbon cycle between 717 million and 635 million years ago, a finding that directly challenges a decades-long belief of most scientists.

    4 minutes
  • Nation & World

    Magnetism on the moon

    A team of researchers from Harvard, MIT, and the Institut de Physique du Globe de Paris have proposed a surprisingly simple explanation for magnetic anomalies that have baffled scientists since the mid-1960s, suggesting they are remnants of a massive asteroid. As described in a paper published in Science, the researchers believe an asteroid slammed into…

    4 minutes
  • Nation & World

    With the Earth as teacher

    Students in Earth and Planetary Sciences kicked off their academic year early, spending a late-August week in paradise, observing Hawaii’s volcanoes, green and black sand beaches, and overarching geologic splendor.

    3 minutes
  • Nation & World

    Boulders that bowl over

    A new exhibit at Gund Hall shows how rocks are used to shape landscape design and to create art.

    5 minutes
  • Nation & World

    Scientists find signs of ‘snowball Earth’

    Geologists have found evidence that sea ice extended to the equator 716.5 million years ago, bringing new precision to a “snowball Earth” event long suspected of occurring around that time.

    3 minutes
  • Nation & World

    Geology is destiny

    As a teenager in Toronto in the 1950s, Paul Hoffman would spend hours in the Royal Ontario Museum studying its collection of rocks and minerals. He became a passionate collector, trading rocks with friends and exploring abandoned mines in search of crystals.

    14 minutes
  • Nation & World

    Sulfur dioxide may have helped maintain a warm early Mars

    Sulfur dioxide (SO2) may have played a key role in the climate and geochemistry of early Mars, geoscientists at Harvard University and the Massachusetts Institute of Technology (MIT) suggest in…

    3 minutes
  • Nation & World

    Finding a fossilized needle in an Arctic haystack

    The first season searching Arctic Canada for a fossil that would illuminate how our ancestors first crawled onto land proved Harvard Professor Farish Jenkins’ explorer’s maxim: Never go any place…

    1 minute
  • Nation & World

    Missing link crawls out of muck

    Paleontologists have discovered fossils of a species that provides the missing evolutionary link between fish and the first animals that walked out of water onto land about 375 million years…

    2 minutes
  • Nation & World

    Winds and waves sculpted a ‘snowball Earth’

    It’s a world hard to imagine. Some 650 million years ago, Earth’s land and oceans were almost completely covered by ice and snow. The planet’s population – primitive plants and…

    2 minutes
  • Nation & World

    Australian shale tells tale of layered seas

    Harvard researchers have found important clues about the Earth’s environment 1.5 billion years ago. Their results present quite a different picture from present times, in which oceans have oxygen-rich waters…

    1 minute
  • Nation & World

    New earthquake mapping system could save lives

    “The earthquake-hazard maps currently in use are based on the premise that the closer a building is to a large fault, the better designed it should be,” says Harvard earthquake…

    1 minute
  • Nation & World

    El Nino found to be 124,000 years old

    Records preserved in corals from Indonesia reveal that El Niño was causing severe weather even before the last ice age began, when the climate apparently was like it was for…

    1 minute