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1. Geologic Data Assistant (GDA): An ArcPad Extension for Geologic Mapping [USGS_GDA]
GDA (Geologic Data Assistant) is an extension to ArcPad, a mobile mapping software program by Environmental Systems Research Institute (ESRI) designed to run on personal digital assistant (PDA) computers. ...

2. The Life Cycle of a Mineral Deposit - A Teacher’s Guide for Hands-On Mineral Education Activities [USGS_GIP_2005_17]
This teacher's guide defines what a mineral deposit is and how a mineral deposit is identified and measured, how the mineral resources are extracted, and how the mining site is reclaimed; how minerals ...

3. Understanding Earthquake Hazards in the San Francisco Bay Region [USGS_Fact_Sheet_152-99]
On the basis of research conducted since the 1989 Loma Prieta earthquake, U.S. Geological Survey (USGS) and other scientists conclude that there is a 70% probability of at least one magnitude 6.7 ...

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