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Carboniferous History from Coarse Detritus of the Appalachian-Cahaba System: Conglomerate Clasts from the Upper Pottsville Formation, Cahaba Synclinorium, Alabama
Thermal footprint of an eroded thrust sheet in the southern Appalachian thrust belt, Alabama, USA
Strontium Isotopes, Age, and Tectonic Setting of Cambrian Salinas along the Rift and Transform Margins of the Argentine Precordillera and Southern Laurentia
SMALL PROBLEMATIC PHOSPHATIC SCLERITES FROM THE ORDOVICIAN OF IAPETUS
Analysis of a regional middle Paleozoic unconformity along the distal southeastern Laurentian margin, southernmost Appalachians: Implications for tectonic evolution
Structure of the Kelley Mountain culmination, central Alabama, and implications for the evolution of the southeastern southern Appalachian foreland thrust belt: Discussion and reply
Structure of the Kelley Mountain culmination, central Alabama, and implications for the evolution of the southeastern southern Appalachian foreland thrust belt
The frond architecture of Sphenopteris pottsvillea (White) Gastaldo and Boersma
New paleontologic evidence constraining the age and paleotectonic setting of the Talladega slate belt, southern Appalachians
The first fossiliferous Pridolian beds from the Southern Appalachians in northern Alabama, and the age of the uppermost Red Mountain Formation
Nemagraptid graptolites from the Middle Ordovician Athens Shale, Alabama
Sinkholes resulting from ground-water withdrawals in carbonate terranes–an overview
Abstract Numerous sinkholes resulting from declines in the water table due to ground-water withdrawals in carbonate terranes have occurred in the eastern United States and elsewhere. In Alabama alone, it is estimated that more than 4,000 of these sinkholes, areas of subsidence, or related features have formed since 1900. Almost all occur where cavities develop in residual or other unconsolidated deposits overlying openings in carbonate rocks. The downward migration of the deposits into underlying openings in bedrock and the formation and collapse of resulting cavities are caused or accelerated by a decline in the water table that results in (1) loss of buoyant support, (2) increase in the velocity of movement of water, (3) water-level fluctuations at the base of unconsolidated deposits, and (4) induced recharge. Damage due to sinkhole activity related to ground-water withdrawals has resulted in a variety of studies utilizing available scientific methods. These studies indicate that identifying the terrane in which the activity most commonly occurs and limiting large withdrawals of water from it will eliminate or minimize the problem. The terrane, youthful in nature, exhibits little karstification, is usually a lowland area, has a water table above or near the top of bedrock, and contains perennial or near-perennial streams.