jacobsville formation造句

• The fault is most likely younger than the Jacobsville Formation and the Devonian Period.
• The Jacobsville Formation outcrops significantly throughout the Upper Peninsula, with lesser exposures in Ontario and Wisconsin.
• The age is constrained from 1100 to 540 million years ago as the Jacobsville Formation is bounded above and below by the Munising Formation and the Oronto Group, respectively.
• In 1907, the Jacobsville Formation was given its current classification and the name " Jacobsville ", in honor of Jacobsville, Michigan, a town known for its production of the sandstone.
• As the Jacobsville formation contains no glacial deposits, it could not have formed during a Snowball Earth event, thus eliminating most of the recent half of the Neoproterozoic Era ( approximately 760 to 542 million years ago ).