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Le Sueur County Aggregate Resource
Evaluation - Boundaries between Aggregate Potential 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 types of geologic contacts, or boundaries, between the mapping unit polygons of the aggregate potential layer. There are three types of contacts: county border, geologic contact - well defined, channel scarp - well defined. |
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 for 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://dnr.state.mn.us/lands_minerals/aggregatemaps.html The files can also be found on the CD available for the project from MN DNR, Division of Lands and Minerals, under the drive:\data\resource subdirectory (where 'drive' is the CD reader or writer drive for the PC). |
Online Linkage |
none available |
Full Metadata
Le Sueur County Aggregate Resource Evaluation
- Boundaries between Aggregate Potential 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 - Boundaries between Aggregate Potential Mapping Units |
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Abstract |
This dataset consists of information about the types of geologic contacts, or boundaries, between the mapping unit polygons of the aggregate potential layer. There are three types of contacts: county border, geologic contact - well defined, channel scarp - well defined. |
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Purpose |
To differentiate the types of geological contacts so that various line symbols (e.g., solid lines, hatched lines, dashed lines) can be used to show the contacts between polygons on a map. |
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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 |
Geologic contacts, channel scarps |
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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 for 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 mapping units were delineated by aerial photograph (at a scale of 1:40000) interpretation and digitized onscreen, using Arcview with 1:12000 USGS DOQs and 1:24000 USGS DRGs as the spatially registered backdrops. |
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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 |
Line |
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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 lines delineate the polygon mapping units found in the aggregate potential layer. Note: some of these lines, specifically the channel scarps and glacial margin, are also found in the lesusgeoln shapefile, to enable the user to portray these special features as a continuous line symbol. |
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Entity and Attribute Detailed Citation |
lesuagpln_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 |
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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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://dnr.state.mn.us/lands_minerals/aggregatemaps.html The files can also be found on the CD available for the project from MN DNR, Division of Lands and Minerals, under the drive:\data\resource subdirectory (where 'drive' is the CD reader or writer drive for the PC). |
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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 |
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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: 2003