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Lower-Mississippi Gulf Water Science Center



USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusettes South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Mississippi Embayment Regional Aquifer Study (MERAS) interactive subsurface map

Subsurface data used in the interactive map is based on a geophysical log database and work produced in USGS Scientific Investigations Report 2008-5192 and Scientific Investigations Report 2008-5098 (see links below). The current geophysical log database is considered to be version 1.0. A version number may be helpful to track future updates to interpretation of hydrogeologic unit tops as more data are acquired and the overall understanding of the subsurface changes.

View interactive map (requires use of popups)

The interactive map is under development to contain security gaps. While we add functionality to the new map - adventurous users may take a look at the prototype:
Beta map

Map instructions:
1) Use of popups is currently required
2) Pan using click-and-drag
3) Zoom using mouse wheel
4) click anywhere in the study area outline (black boundary) to generate a stratigraphic column in a new window

Strongly recommend using one of the following browsers to view this application:
Firefox 14
MS Internet Explorer® 9
The viewer uses pop-up windows for display of map and results. You must temporarily disable any pop-up blocker that you have installed on your machine for these windows to work.
Scientific Investigations Report 2008-5192 Scientific Investigations Report 2008-5192
Geophysical Log Database for the Mississippi Embayment Regional Aquifer Study (MERAS),
by R.M. Hart and B.R. Clark
SIR2008-5098 Scientific Investigations Report 2008-5098
Digital Surfaces and Thicknesses of Selected Hydrogeologic Units within the Mississippi Embayment Regional Aquifer Study (MERAS),
by R.M. Hart, B.R. Clark, and S.E. Bolyard

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