A Tectonic Model for the Spatial Occurrence of Porphyry Copper and Polymetallic Vein Deposits - Applications to Central Europe

Comparison of Ground-Water Quality in Samples from Selected Shallow and Deep Wells in the Central Oklahoma Aquifer, 2003-2005

GEOINFORMATICS 2006 ABSTRACTS MAY 10-12 RESTON, VIRGINIA

Water-Quality Characteristics, Including Sodium-Adsorption Ratios, for Four Sites in the Powder River Drainage Basin, Wyoming and Montana, Water Years 2001-2004

Occurrence of Organic Wastewater Compounds in Drinking Water, Wastewater Effluent, and the Big Sioux River in or near Sioux Falls, South Dakota, 2001-2004

Hydrogeology of the Valley-Fill Aquifer in the Onondaga Trough, Onondaga County, New York

Chemical and Ecological Health of White Sucker (Catostomus commersoni) in Rock Creek Park, Washington, D.C., 2003-04

Watershed Characteristics and Pre-Restoration Surface-Water Hydrology of Minebank Run, Baltimore County, Maryland, Water Years 2002-04

Ground-Water Quality of the Northern High Plains Aquifer, 1997, 2002-04

Questa Baseline and Premining Ground-Water Quality Investigation 18. Characterization of Brittle Structures in the Questa Caldera and Their Potential Influence on Bedrock Ground-Water Flow, Red River Valley, New Mexico

Characterization of Ground-Water Flow and Water Quality for the Madison and Minnelusa Aquifers in Northern Lawrence County, South Dakota

Vertical Gradients in Water Chemistry and Age in the Northern High Plains Aquifer, Nebraska, 2003

Hydrogeology and Simulated Ground-Water Flow in the Salt Pond Region of Southern Rhode Island

A Multiple-Tracer Approach for Identifying Sewage Sources to an Urban Stream System

LiDAR-Derived Flood-Inundation Maps for Real-Time Flood-Mapping Applications, Tar River Basin, North Carolina