Maine

Moosehead Lake, located in Maine, has a rich geological history that spans millions of years. The region is primarily composed of metamorphic rocks, which were formed through intense heat and pressure over time.The oldest rock formations in the area are known as the basement complex, and date back to approximately 1.2 billion years ago. These rocks were once part of a supercontinent known as Rodinia, and include granite and gneiss.During the Paleozoic era, which lasted from approximately 541 million to 252 million years ago, the region was covered by a shallow sea. This led to the formation of sedimentary rocks...