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Le Sueur County Aggregate Resource
Evaluation - Aggregate Potential - Sand and Gravel - Crushed Stone - Mapping
Units
This page last updated: 2007
Metadata created using Minnesota
Geographic Metadata Guidelines
Metadata Summary
Originator |
Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section |
Abstract |
This dataset consists of information about the geology, geological characteristics, and sand and gravel potential of 69 map units. Five fields (attributes) relate to the surficial geology of the map unit. Eleven fields (attributes) relate to sand and gravel characteristics, including probability, quality, texture, overburden thickness, and deposit size of the map unit. These characteristics were used to calculate the aggregate potential of the map unit for sand and gravel. |
Browse Graphic |
none available |
Time Period of Content Date |
2003 |
Currentness Reference |
Data were gathered in the fall of 2002 and the spring of 2003 and compiled during the spring of 2003. |
Access Constraints |
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Use Constraints |
Acknowledgement of the Minnesota Department of Natural Resources is appreciated in products derived from these data. |
Distributor Organization |
Minnesota Department of Natural Resources, Division of Lands and Minerals |
Ordering Instructions |
The aggregate resource data
layers are part of the lesudata.zip file if they are downloaded from the MN
DNR web page at http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html
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Online Linkage |
none available |
Full Metadata
Le Sueur County Aggregate Resource Evaluation
- Aggregate Potential - Sand and Gravel - Crushed Stone - Mapping Units
Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information
Section 1 |
Identification Information |
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Originator |
Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section |
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Title |
Le Sueur County Aggregate Resource Evaluation - Aggregate Potential - Sand and Gravel - Crushed Stone - Mapping Units |
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Abstract |
This dataset consists of information about the geology, geological characteristics, and sand and gravel potential of 69 map units. Five fields (attributes) relate to the surficial geology of the map unit. Eleven fields (attributes) relate to sand and gravel characteristics, including probability, quality, texture, overburden thickness, and deposit size of the map unit. These characteristics were used to calculate the aggregate potential of the map unit for sand and gravel. |
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Purpose |
To summarize the geological characteristics, surficial geology, and aggregate potential (sand, gravel) of the different units. To help categorize the geological characteristics and incorporate them into a model to help determine the aggregate potential of the deposit. |
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Time Period of Content Date |
2003 |
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Currentness Reference |
Data were gathered in the fall of 2002 and the spring of 2003 and compiled during the spring of 2003. |
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Progress |
Complete |
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Maintenance and Update Frequency |
None planned |
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Spatial Extent of Data |
Le Sueur County, Minnesota |
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Bounding Coordinates |
-94.03 |
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Place Keywords |
Le Sueur County, Minnesota |
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Theme Keywords |
Surficial geology, geological characteristics, aggregate potential, sand, gravel, crushed stone |
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Theme Keyword Thesaurus |
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Access Constraints |
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Use Constraints |
Acknowledgement of the Minnesota Department of Natural Resources is appreciated in products derived from these data. |
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Contact Person Information |
Aggregate Resource Mapping
Program (Geologist or GIS Specialist) St. Paul, MN 55155-4045 |
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none available |
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Browse Graphic File Description |
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Associated Data Sets |
The
County Aggregate Mapping Program dataset for Le Sueur County is included in the
file lesudata.zip, accessible from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html
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Section 2 |
Data Quality Information |
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Attribute Accuracy |
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Logical Consistency |
Overshoots and undershoots were fixed by a variety of techniques, thus the lines have been checked and completed. |
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Completeness |
The sand and gravel and surficial geology units were delineated by the interpretation of aerial photographs at a 1:40000 scale. These interpretations were plotted on 1:24000 USGS topographic maps. These delineations and unit descriptions were field checked and revised. The final coverage was digitized onscreen using Arcview with USGS DOQs (at a scale of 1:12000) and USGS DRGs (at a scale of 1:24000) as the spatially registered backdrops. This was a reconnaissance-scale survey and was mapped at 1:50000. |
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Horizontal Positional Accuracy |
1:50000 |
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Vertical Positional Accuracy |
Not applicable. |
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Lineage |
Color infrared and
black-and-white aerial photographs were used to delineate geological
landforms and aggregate resources. Stereoscopic pairs of color infrared
aerial photographs (NAPP, 9in x 9in at 1:40000 scale, April 1991 and April
1992) were used along with reconnaissance-level, high-altitude,
black-and-white photographs (1:80000 scale). Aerial photographs (DOQs at
1:12000) were also available digitally and used within Arcview. Aerial
photographic interpretation was completed with a glacial mapping technique
known as the landsystems approach. This technique relies on the principle
that depositional glacial landforms are composed of a predictable range of
sediments, some consisting of sorted sand and gravel and others consisting of
silts, clays, or unsorted materials. In addition to the landsystems approach,
several other general characteristics helped determine the nature of the
material, such as tonal contrasts, texture, context, shape, size, trend,
association, and patterns. These characteristics can help determine the
properties of the surface material (e.g., certain vegetation grows on well
drained soils such as sand and gravel, which on an aerial photograph has a
distinctive texture, tone, pattern, etc.). |
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Source Scale Denominator |
50000 |
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Section 3 |
Spatial Data Organization Information |
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Native Data Set Environment |
ArcGIS 8.3, Arc/INFO 8.0.2, and Arcview 3.3 from ESRI |
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Geographic Reference for Tabular Data |
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Spatial Object Type |
Vector |
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Vendor Specific Object Types |
Polygon |
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Tiling Scheme |
Le Sueur County |
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Section 4 |
Spatial Reference Information |
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Horizontal Coordinate Scheme |
UTM |
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Ellipsoid |
GRS80 |
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Horizontal Datum |
NAD83 |
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Horizontal Units |
Meters |
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Distance Resolution |
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Altitude Datum |
Not applicable |
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Depth Datum |
Not applicable |
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UTM Zone Number |
15E |
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Section 5 |
Entity and Attribute Information |
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Entity and Attribute Overview |
The polygons were delineated to represent geological features, geological characteristics, and aggregate potential for sand and gravel. |
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Entity and Attribute Detailed Citation |
lesuagppy_att.htm
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Section 6 |
Distribution Information |
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Publisher |
Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section |
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Publication Date |
2003 |
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Contact Person Information |
Aggregate Resource Mapping
Program (Geologist or GIS Specialist) St. Paul, MN 55155-4045 |
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Distributor's Data Set Identifier |
County Aggregate Mapping - Le Sueur County |
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Distribution Liability |
The Minnesota Department of Natural Resources makes no representation or warranties, express or implied, with respect to the reuse of data provided herewith, regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, or reliability of this data for any purpose. The user accepts the data 'as is', and assumes all risks associated with its use. By accepting this data, the user agrees not to transmit this data or provide access to it or any part of it to another party unless the user shall include with the data a copy of this disclaimer. The Minnesota Department of Natural Resources assumes no responsibility for actual or consequential damage incurred as a result of any user's reliance on this data. |
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Transfer Format Name |
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Transfer Format Version Number |
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Transfer Size |
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The aggregate resource data
layers are part of the lesudata.zip file if they are downloaded from the MN
DNR web page at http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html
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Online Linkage |
none available |
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Section 7 |
Metadata Reference Information |
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Metadata Date |
2007 |
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Contact Person Information |
Aggregate Resource Mapping
Program (Geologist or GIS Specialist) St. Paul, MN 55155-4045 |
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Metadata Standard Name |
Minnesota Geographic Metadata Guidelines |
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Metadata Standard Version |
1.2 |
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Metadata Standard Online Linkage |
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This page last updated: 2007