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Hurricane Sandy Impacts Did Not Contribute to Subsequent Storm Flooding

Hurricane Sandy Impacts Did Not Contribute to Subsequent Storm Flooding

Flooding in coastal areas bordering Great South Bay, N.Y. and Barnegat Bay, N.J. caused by winter storms that occurred following Hurricane Sandy was...

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Climate Change Accelerates Hybridization between Native and Invasive Species of Trout

Climate Change Accelerates Hybridization between Native and Invasive Species of Trout

Scientists have discovered that the rapid spread of hybridization between a native species and an invasive species of trout in the wild is strongly...

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Genetic Analysis Reveals Fish Eggs Found in Upper Mississippi River are not Asian Carp

Genetic Analysis Reveals Fish Eggs Found in Upper Mississippi River are not Asian Carp

Scientists have extracted DNA from fish eggs found in northern sections of the Upper Mississippi River and have determined that the eggs and larvae...

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Revised North Dakota, Delaware and Maryland Maps Feature New Design

Revised North Dakota, Delaware and Maryland Maps Feature New Design

US Topo maps now have a crisper, cleaner design - enhancing readability of maps for online and printed use. Map symbols are easier to read over the...

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Study Aids Water Managers Battle Saltwater Intrusion

Study Aids Water Managers Battle Saltwater Intrusion

Scientists are using a cadre of new weapons in the battle against an old nemesis – saltwater intrusion.
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Geologic Evidence of Past Tsunamis in California

Geologic Evidence of Past Tsunamis in California

An extensive sedimentary deposit formed by a tsunami in 1946 was recently discovered at Pillar Point Marsh near Half Moon Bay, California. While there...
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No Surprises from Boise River Mercury Study

No Surprises from Boise River Mercury Study

A report published today by the U.S. Geological Survey and the City of Boise documents low concentrations of mercury in water samples and high...
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Groundwater Study Assesses Potential for Contamination of Drinking-Water Aquifers in Los Angeles

Groundwater Study Assesses Potential for Contamination of Drinking-Water Aquifers in Los Angeles

Contaminated groundwater found at shallow depths in southern Los Angeles County has the potential to migrate to deeper aquifers, according to a...
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Global Platinum-Group Resources Estimated at More than 150K Metric Tons

Global Platinum-Group Resources Estimated at More than 150K Metric Tons


 

The first-ever inventory and geological assessment of known and undiscovered platinum-group element (PGE) resources estimates that more than 150,000...

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High Concentrations of Nitrate more Prevalent in Livermore, Gilroy-Hollister, and Cuyama Valleys than Statewide

High Concentrations of Nitrate more Prevalent in Livermore, Gilroy-Hollister, and Cuyama Valleys than Statewide

Nitrate was detected at high concentrations in about 14 percent of untreated groundwater sources used for public water supply in the Livermore, Gilroy...
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Meeting the Elevation Needs of the Nation

Meeting the Elevation Needs of the Nation

Want to know how elevation will benefit your state? The USGS National Geospatial Program is advancing the 3D Elevation Program, known as 3DEP, in...

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USGS Takes the Big Wood River’s Temperature

USGS Takes the Big Wood River’s Temperature

Scientists from the U.S. Geological Survey installed water temperature sensors this week along Idaho’s Big Wood River and tributaries.
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