Petrify define
If it is necessary to know the depth to bedrock precisely, specific work at the site is required, such as test borings or geophysical surveys (by seismic refraction, or ground-penetrating radar). That having been said, the bedrock surface in Maine is quite irregular, and difficult to predict in detail.
How far down is it to bedrock? BackĬompared to many parts of the world, surficial materials in Maine are relatively thin, generally less than 50 feet, and rarely over 100 feet. I want to drill a well or do excavation work. Maine has an abundance of boulders and stones in the glacial deposits that do not qualify as bedrock since they are no longer solidly attached below ground, but they can be just as troublesome for drilling and excavation projects. In addition, there are widespread natural exposures of bedrock on hilltops, where overlying materials have not accumulated, or along streambeds and shorelines where bedrock has been washed clean. Bedrock, or ledge, is commonly encountered in shallow excavation projects, such as digging for foundations or blasting for road construction. It forms a continuous foundation beneath the whole state, but in most of Maine, bedrock is covered by some thickness of surficial sediments, soil, and vegetation. Is the rock at Two Lights State Park petrified wood?īedrock is the solid rock that makes up the earth's crust. Where in Maine can I find granite (or limestone, or some other particular kind of bedrock)? What kinds of rocks make up the bedrock of Maine? Bedrock Geology - Frequently Asked Questions