Georgia Mineral News Letter, Količine 12–13

artesian aquifer Atlanta basin beds belt beryl Bull Bureau of Mines carbonate Carolina Chattahoochee Chattahoochee River chemical Cherokee clay Clay County Clayton formation Coastal Plain contains Cooper Creek corn corundum crystalline crystals deposits district drilled east Eocene feet Flint River flow Fort Gaines Furcron geologists Georgia Georgia Geol Georgia Mineral Society glauconitic gneiss granite ground water ground-water resources Indian industrial iron Island Jekyll kyanite limestone locality located lower Macon Macon County mica miles million Mineral Newsletter Mountain northwest obtained Ocala limestone occur Oligocene outcrop Paleozoic pegmatite percent plant present principal artesian aquifer production pumping quadrangle quarry quartz Ridge road samples sand sandy Savannah area schist sediments shale sillimanite southeast STANFORD stone stream Sumter County supply Tallahatta Terrell County thick tion trail U. S. Geological Survey valley Wahoo water levels