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08424100
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FGDC CSDGM Metadata
FALSE
madison_014_porosity_contour
002
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-218440.397300
688452.396300
1342512.544700
1
0.000
Projected
GCS_WGS_1984
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WGS_1984_Web_Mercator_Auxiliary_Sphere
20230612
21105500
20230612
21105500
FGDC
Bureau of Economic Geology
10100 Burnet Rd. Bldg. 130
Austin
TX
78729
US
8-5
20230612
ArcGIS Metadata
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BEG
10100 Burnet Rd. Bldg 139
Austin
Texas
78758
US
Enterprise Geodatabase Feature Class
0.000
Madison Porosity
<DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN><SPAN>Movement along major faults and lineaments may affect porosity over a large area and through time, making porosity fracture important in the area. Contours in the porosity map represent the thickness of rock having porosity greater than or equal to 10 percent.</SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV>
Porosity for Madison Group, Williston Bay
Downey, J. S., 1986, Geohydrology of bedrock aquifers in the northern Great Plains in parts of Montana, North Dakota, South Dakota and Wyoming: U.S. Geological Survey Professional Paper 1402-E, 87 p.
*
Downey, J. S., 1984, Geohydrology of the Madison and associated aquifers in parts of Montana, North Dakota, South Dakota and Wyoming: U.S. Geological Survey Professional Paper 1273-G, 47 p.
Williston Basin
Madison Group
Madison Group
Williston Basin
Access constraints: Restriction Code: other restrictions; Other Constraints: Access constraints: None
See access and use constraints information.
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madison_014_porosity_contour
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hyperlink
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