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Low water in Great Salt Lake reveals ‘rocks that are alive’

Some lakes are home to legendary monsters (here’s looking at you, Bear Lake), while others are home to other organisms. Great Salt Lake’s great lows have exposed microbialites, also known as bioherms, allowing scientists and researchers an uncommon opportunity to get a closer look.

thespectrum.com

As Utah’s Great Salt Lake continues to drop during recent years of drought, something strange and wonderful is coming into focus in the shallows and exposed lake bed.

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Low water in Great Salt Lake reveals ‘rocks that are alive’

We hope you all had a great and safe Thanksgiving! Who ate so much turkey that they feel like a turkey? I think I do. Here’s a little something to help you kickstart after a long, holiday weekend—
A couple of our geologists here at the UGS helped a team of researchers collect microbialites from Great Salt Lake for the Natural History Museum of Utah. Read more about these living rocks in this great write up.

sltrib.com

As Utah’s Great Salt Lake continues to drop during recent years of drought, something strange and wonderful is coming into focus in the shallows and exposed lake bed.

READ MORE

Bioherm, Great Salt Lake, Antelope Island

Antelope Island Bioherm Flyover


The shallow waters of Bridger Bay, on the northwestern tip of Antelope Island in the southern arm of hypersaline Great Salt Lake, support extensive microbial carbonate formation, especially in the north-northeast portion of the bay near Egg Island.  Lake levels in the fall of 2014 were near 60-year lows (as low as 1278.1 m [4193.3 ft] AMSL, compared to the near-term historic average of about 1280 m [4200 ft]), giving unprecedented access to the microbial structures.  Characterizing the microbialites of Bridger Bay, including facies delineation and aerial extent, can inform interpretations of similar deposits in the ancient rock record (e.g., Eocene Green River Formation), including potential petroleum reservoirs.

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