Current Events

  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.
  • Massive Tornado Outbreak on Tornado Alley
    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Io...Read more

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    Massive Tornado Outbreak on Tornado Alley

    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Iowa, Illinois and Missouri. On May 20th, a massive tornado struck Moore, Oklahoma, devastating communities - destroying over 100 homes and hitting two elementary schools and a hospital - with many casualties and deaths. Our thoughts are with our friends and colleagues suffering from these storms. For more on the May 20th storms, see the NOAA Storm Prediction Center Storm Report.
  • Kansas Legislator Proposes Bill to Outlaw Sustainability Education
    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of ...Read more

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    Kansas Legislator Proposes Bill to Outlaw Sustainability Education

    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of sustainability. Here is a link to the one-page bill: http://www.kslegislature.org/li/b2013_14/measures/documents/hb2366_00_0000.pdf. See report on Bloomberg News.
These geologists are exploring granite rocks on a mountain ridge.

Scientists Who Study Rocks

Geology is the study of rocks and geologists are the people who study them! There are many different types of geologists.

  • Mineralogists study minerals.
  • Petrologist study rocks.
  • Structural geologist study how plate tectonics moves and squishes rocks.
  • Paleontologists study Earth history and fossils.
  • Geomorphologists study how the land surface is shaped by water, wind and ice.

What is a geologist like? Well, they are all very different. Click on the links below to get to know some famous geologists.

  • Florence Bascom was a mineralogist and petrologist.
  • Charles Darwin was the first scientist to publish the theory of evolution.
  • Stephen Jay Gould expanded Darwin's theory with his own ideas.
  • Friedrich Mohs was the mineralogist who created a way to identify minerals by their hardness.
  • Leonardo da Vinci did a little bit of everything! He was a famous artist and also discovered how sedimentary rocks and fossils form.


Last modified March 30, 2009 by Lisa Gardiner.

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The Fall 2010 issue of The Earth Scientist, focuses on rocks and minerals, including articles on minerals and mining, the use of minerals in society, and rare earth minerals, and includes 3 posters!

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