Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state
|Kcd||Colorado and Dakota Groups|
|PAkc||Kansas City Group|
|Dys||Yellow Spring Group|
|Dlc||Lime Creek Formation|
|Dsq||State Quarry Limestone|
|Dsr||Shell Rock Formation|
|Dcv||Cedar Valley Limestone|
|Dlp||LaPorte City Chert|
|Osp||St. Peter Sandstone|
|Opc||Prairie du Chien Formation|
|CAsc||St. Croixan Series|
|Late Pennsylvanian||geologic age|
|Middle Pennsylvanian||geologic age|
|Late Mississippian||geologic age|
|Early Mississippian||geologic age|
|Late Devonian||geologic age|
|Middle Devonian||geologic age|
|Early Devonian||geologic age|
|Middle Silurian||geologic age|
|Early Silurian||geologic age|
|Late Ordovician||geologic age|
|Middle Ordovician||geologic age|
|Early Ordovician||geologic age|
|Late Cambrian||geologic age|
|Middle Proterozoic||geologic age|
|1||contact, location certain|
|7||shoreline or riverbank|
|0||no additional information|
|1||for normal faults, upthrown side is to the right|
|0||no additional information|
State Geologic Map Compilation (SGMC) activity of the National Surveys and Analysis projects of the US Geological Survey Mineral Resources Program.
A primary goal of this work is to develop geologic map datasets with standardized structure and attribution. The database design and standards are documented in Chapter A of this series. The intent is that contiguous databases can be merged seamlessly and without any additional effort. In addition to a common database structure, the conterminous U.S. state databases (the contiguous 48 states) have been fitted to a set of standard state boundaries so that, when states are merged, they match without slivers or overlap. No attempt has been made to reconcile differences in mapping across state boundaries.
Are there legal restrictions on access or use of the data?
Use_Constraints:This database is not meant to be used or displayed at any scale other than 1:500,000. Any hardcopies utilizing these data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the U.S. Geological Survey.
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standard nor with the North American stratigraphic codes. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. This data base GIS is not meant to be used or displayed at any scale other than 1:500,000.
|Data format:||Geologic units and structural features in format ARC/INFO export (version 9.1)|