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U-M divers retrieve 8,900-year-old piece of wood from Lake Huron
Annarbor.com (12/12)
University of Michigan researchers announced they have found a 5 1/2 foot long, pole-shaped piece of wood that is 8,900 years old in Lake Huron.
Superior researchers studying invasives, ballast water
Ashland Current (2/9)
Determining how clean a ship's ballast water must be to prevent the spread of aquatic invasive species is the goal of the latest research partnership between the Northeast-Midwest Institute and the Lake Superior Research Institute at the University of Wisconsin-Superior.
RIVERKEEPERS: Tending the waterways
Niagara Gazette (2/6)
The goal of the Buffalo Niagara Riverkeeper is two-fold: protecting the water quantity and the quality, as well as connecting people to the waterfront.
Internationally renowned ‘Ocean Doctor’ to speak in Grand Rapids
MLive.com (2/3)
Known as the “Ocean Doctor,” David Guggenheim will speak in Grand Rapids, Mich., about the many similarities between the threats to the oceans and to our Great Lakes.
SUNY Fredonia to lead Great Lakes pollution study
Wall Street Journal (2/3)
Plastic pollution in the Great Lakes will be the focus of a study this summer. Led by the State University of New York at Fredonia, researchers will try to quantify the amount of plastic polluting the fresh water Great Lakes.
SSC students taking part in marine science bowl
Arenac County Independent (1/31)
Teams of Michigan high school students will be heading to Ann Arbor this weekend to take part in the annual Great Lakes Bowl, a quiz event that focuses on questions about marine and freshwater systems and biology.
What's going on in your neighborhood this month? Meet other people and learn together at recreational and educational events! Our new dynamic calendar is updated daily with current educational events.
How is sand formed around Lake Michigan? Is it the same as the sand in beaches(ocean)? Could it be manmade?
from Roberto of Colegio San Jorge in San Juan, Puerto Rico, Age 12
Sand consists of rocks, crystals, and sea shells that are worn down by time, and each beach can have its own kind of sand. The tan-colored beaches around the Great Lakes area are made up mostly of grains of quartz, the black sand beaches of Hawaii are made up of rocks that have eroded from volcanoes, and the white sand on tropical beaches includes finely ground sea shells.
Sand is deposited on beaches when the waves from the ocean or lake move it up to the shoreline. However, sand can be brought in from elsewhere to create a larger beach or a barrier. So although the sand itself is not artificial, the means of getting it to the beach could be!
Thank you for your question!
Answered on August 1, 2000