Search results
Results from the WOW.Com Content Network
A Petoskey stone is a rock and a fossil, often pebble-shaped, that is composed of a fossilized rugose coral, Hexagonaria percarinata. [1] Such stones were formed as a result of glaciation, in which sheets of ice plucked stones from the bedrock, grinding off their rough edges and depositing them in the northwestern (and some in the northeastern) portion of Michigan's lower peninsula.
Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone or gemstone to promote interest in their natural resources, history, tourism, etc. Not every state has an official state mineral, rock, stone and/or gemstone, however.
Turnip Rock is a small geological formation in Michigan. It is a stack [1] located in Lake Huron, in shallow water a few yards offshore, near the rock called the Thumbnail which is the extreme tip of Pointe Aux Barques, a small peninsula in Pointe Aux Barques Township [2] which in turn is the extreme tip of The Thumb, a large peninsula comprising several counties in eastern Michigan.
The same erosional forces responsible for the Permian and Mesozoic gaps in Michigan's rock record were active during the ensuing Paleogene and Neogene periods of the Cenozoic era. [2] As such, no Cenozoic fossils older than the Pleistocene are known from Michigan. [1] Nevertheless, Michigan has many deposits made during the Quaternary period.
Green starstone is most common in Michigan's Upper Peninsula. Greenstone or Isle Royale greenstone and Lake Superior greenstone. Turtle back is a name sometimes given because of the overall pattern, particularly in polished pieces, which roughly resembles that of a turtle shell. Uigite is a variety found on the island of Skye off the coast of ...
Pages in category "Rock formations of Michigan" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. A.
Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.
Pictured Rocks National Lakeshore is a U.S. National Lakeshore in the Upper Peninsula of Michigan, United States. It extends for 42 mi (68 km) along the shore of Lake Superior and covers 73,236 acres (114 sq mi; 296 km 2 ).