Step aside and give a round of applause for Illinois’ official state rock … dolostone! Learn about what dolostone can teach us about Illinois history.
A Silurian fossil, in dolostone, in the Field Museum's collection, with a drawing of the creature as it appeared 400 million years ago.
“We don’t see it as much in younger rock. Why, what has changed?” said Pardi. “Scientists are actively researching. One thought is it has to do with microbial activity.”“I sometimes describe what do as ‘a consensual hallucination of the past,’” Elrick said. There’s the observed evidence and then an attempt to imagine how and why it got there, constrained by science.To call dolostone the foundational rock of Illinois is true both literally and figuratively.
For starters, there is a lot of the stuff. Four hundred million years from now, will anyone care about coming across the gazillionth zebra mussel fossil? Another issue is that the “dolomitization” process — limestone becoming dolostone — causes fossils to lose a lot of their detail. Most of the time the reservoir is fairly empty and the reef is visible, an MWRD spokesperson told WTTW News. Even if the reservoir were to be filled to its maximum volume, the top of the reef would rise above the water.
Species such as side-oats gamma grass, prairie smoke and native prickly pear cactus are well suited to dolomite prairie, she said, and she’s even found rare examples of a plant called quillwort growing in dolomite remnants.
México Últimas Noticias, México Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
15 states, including Illinois, have monkeypox cases, according to federal health officials15 states have confirmed cases of monkeypox.
Leer más »
Illinois ethics agency investigating Dr. Ngozi Ezike: reportA state ethics agency is reportedly investigating Illinois’ former top doctor, Ngozi Ezike.
Leer más »
Illinois Gov. Pritzker signs law improving access to mental health servicesIllinois is taking a step towards addressing the shortage of mental health professionals in the state.
Leer más »
State launches investigation against former top doctor, Ngozi Ezike, for ethics violationsIllinois' former top doctor is under investigation for ethics violations in her new role.
Leer más »
Introducing ‘Hack Me if You Can,’ a New Podcast Series🎧 Listen: In our new podcast series, bobmcmillan meets a Russian hacker who won big by committing cybercrime in the U.S. He reveals how he became one of the best of a generation of hackers who cut their teeth in the early days of the internet.
Leer más »
'I need a home': New Mexicans look to Biden during wildfiresWhen U.S. President Joe Biden visits New Mexico on Saturday to meet victims of the state's largest ever wildfire, Daniel Encinias hopes to ask him for a new house.
Leer más »