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Coast plain Tidewater area

Coast plain (Tidewater area). After Ice Age the ocean came as far as the Cloverleaf Mall.Natural Resources found in this area - sand, gravel, and Petersburg granite which is what type of rock ?. Piedmont (foothills). Hard rock such as pegmatite,slate, kyanite(va.

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Coast plain Tidewater area

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    1. Coast plain (Tidewater area) Youngest province Made up of relatively flat sedimentary rocks State fossil found here the chesapecten jeffersonius a clam-like fossil that’s at least 4-million yrs old Sharks teeth,whale bones found in Petersburg,Richmond, King Dominion area Fall line separate soft rock from hard rock

    3. Piedmont (foothills) Hard rock such as pegmatite,slate, kyanite(va.#1 producer) gold,pyrite. Pegmatite cooled so slowly that you can see the minerals,gem stones in the rock.

    4. Piedmont (foothills) Gems such as amazonite-aqua blue color,only other place this is found is in the Amazon river area. Slate mines in Buckingham Co. Gold-Pyrite belt that runs from Goochland n.e. to the Potomac River.(1st gold mine in the U.S.) Lake Anne S.P. pan for gold. Along Coalfield Road the first coal mine in the state of Va. The Mesozoic Basin swampy regions that explains the coal. Also dinosaurs feet prints have been found in these areas

    5. Blue Ridge Long narrow province,Afton Mt at the narrowest part All rock types Va. It’s the Blue Ridge in N.C. it’s the Smokies Oldest rock (granite) age ?? Tallest Mt. Rogers(named for the states 1st geologist ) at 5,719 ft. and White Top at 5,520 ft. Quartzite sold for crushed rock

    6. Valley and Ridge Sedimentary rocks 2-types limestone in the valley, sandstone on the ridges . Why? Karst topography ,Luray caverns and Natural Bridge and Natural Chimney. I-81 runs along the length of this province Ores in this region limestone, gypsum, clay,dolostone.

    7. Appalachian Plateau Rock layer that are flat (not necessarily a flat surface due to erosion ) Very rugged mountains with deep valleys Coal , natural gas,and petroleum.

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