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This page last updated: 04/11/2007
Metadata created using Minnesota Geographic Metadata Guidelines
| 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 91 map units. Seven 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 | Acknowledgement of the Minnesota Department of Natural Resources is appreciated for products derived from these data. |
| Use Constraints | Acknowledgement of the MN DNR 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 renvdata.zip file if they are downloaded from the MN DNR web page at http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html Maps formatted as .pdf files can be downloaded from the same site: Plate A: Aggregate Resources (re_platea.pdf) and Plate B: Surficial Geology (re_plateb.pdf). Note: the web page also indicates which other counties have been mapped. |
| Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata. |
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 | Top of page | ||
| Originator | Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section | |||
| Title | Renville County Aggregate Resource Evaluation - Aggregate Potential - Sand and Gravel - Crushed Stone - Mapping Units | |||
| Abstract | This dataset consists of information about the geology, geological characteristics, and sand and gravel potential of 91 map units. Seven 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. | |||
| 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. | |||
| 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. | |||
| Progress | Complete | |||
| Maintenance and Update Frequency | None planned | |||
| Spatial Extent of Data | Renville County, Minnesota | |||
| Bounding Coordinates | -95.47 -94.49 44.91 44.44 |
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| Place Keywords | Renville County, Minnesota | |||
| Theme Keywords | geoscientificInformation, Surficial geology, geological characteristics, aggregate potential, sand, gravel, crushed stone | |||
| Theme Keyword Thesaurus | ISO 19115 Topic Category | |||
| Access Constraints | Acknowledgement of the Minnesota Department of Natural Resources is appreciated for products derived from these data. | |||
| Use Constraints | Acknowledgement of the MN DNR is appreciated in products derived from these data. | |||
| Contact Person Information | Heather Anderson (or Matt Oberhelman),
Industrial Minerals Geologist (or GIS Specialist) Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road St. Paul, MN 55155-4045 Phone: 651-296-0638 FAX: 651-296-5939 E-mail: heather.anderson@dnr.state.mn.us | |||
| Browse Graphic | none available | |||
| Browse Graphic File Description | ||||
| Associated Data Sets | The County Aggregate Mapping Program dataset for Renville County is included in the file renvdata.zip, accessible from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html The dataset is also available as aggregate resource data layers stored at drive:\data\resource on the CD (where 'drive' is the CD reader or writer drive on the PC). The data layers include data on sand and gravel potential, crushed stone potential, field observations, rock piles, and test pit quality data. |
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| Section 2 | Data Quality Information | Top of full metadata | Top of page | |
| Attribute Accuracy | ||||
| Logical Consistency | Overshoots and undershoots were fixed by a variety of techniques, thus the lines have been checked and completed. | |||
| 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. | |||
| Horizontal Positional Accuracy | 1:50000 | |||
| Vertical Positional Accuracy | Not applicable. | |||
| 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.). The landform recognition approach (part of the landsystems approach) was also used when interpreting the topography within Renville County. Glacial landforms have distinct and unique shapes and patterns that can be observed in their topographic expression. Topographic maps (USGS 1:24000), digital elevation models, and shaded relief maps were all used to help delineate these sand and gravel bearing features. The topographic expression of a feature can also be observed by looking at the distribution of lakes and wetlands. For example, a string of lakes and/or wetlands may be the signature of a glacial outwash channel or collapsed channel, which may host sand or gravel deposits. Several aggregate bearing features were located using this technique (outwash channels, collapsed channels, glaciofluvial fans, eskers, and terraces). |
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| Source Scale Denominator | 50000 | |||
| Section 3 | Spatial Data Organization Information | Top of full metadata | Top of page | |
| Native Data Set Environment | ArcGIS 8.3, Arc/INFO 8.0.2, and Arcview 3.3 from ESRI | |||
| Geographic Reference for Tabular Data | ||||
| Spatial Object Type | Vector | |||
| Vendor Specific Object Types | Polygon | |||
| Tiling Scheme | Renville County | |||
| Section 4 | Spatial Reference Information | Top of full metadata | Top of page | |
| Horizontal Coordinate Scheme | UTM | |||
| Ellipsoid | GRS80 | |||
| Horizontal Datum | NAD83 | |||
| Horizontal Units | Meters | |||
| Distance Resolution | ||||
| Altitude Datum | Not applicable | |||
| Depth Datum | Not applicable | |||
| UTM Zone Number | 15E | |||
| Section 5 | Entity and Attribute Information | Top of full metadata | Top of page | |
| Entity and Attribute Overview | The polygons were delineated to represent geological features, geological characteristics, and aggregate potential for sand and gravel. | |||
| Entity and Attribute Detailed Citation | ftp://ftp.lmic.state.mn.us/pub/dnr/attributes/renvagppy_att.htm | |||
| Section 6 | Distribution Information | Top of full metadata | Top of page | |
| Publisher | Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section | |||
| Publication Date | 2003 | |||
| Contact Person Information | Heather Anderson Industrial Minerals Geologist Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road St. Paul, MN 55155-4045 Phone: 651-296-0638 FAX: 651-296-5939 E-mail: heather.anderson@dnr.state.mn.us |
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| Distributor's Data Set Identifier | renvagpy | |||
| 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. | |||
| Transfer Format Name | ||||
| Transfer Format Version Number | ||||
| Transfer Size | 6.16 mb for associated maps | |||
| Ordering Instructions | The aggregate resource data layers are part of the renvdata.zip file if they are downloaded from the MN DNR web page at http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html Maps formatted as .pdf files can be downloaded from the same site: Plate A: Aggregate Resources (re_platea.pdf) and Plate B: Surficial Geology (re_plateb.pdf). Note: the web page also indicates which other counties have been mapped. |
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| Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above. | |||
| Section 7 | Metadata Reference Information | Top of full metadata | Top of page | |
| Metadata Date | 04/11/2007 | |||
| Contact Person Information | Heather Anderson,
Industrial Minerals Geologist Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road St. Paul, MN 55155-4045 Phone: 651-296-0638 FAX: 651-296-5939 E-mail: heather.anderson@dnr.state.mn.us |
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| Metadata Standard Name | Minnesota Geographic Metadata Guidelines | |||
| Metadata Standard Version | 1.2 | |||
| Metadata Standard Online Linkage | http://www.lmic.state.mn.us/gc/stds/metadata.htm | |||
This page last updated: 04/11/2007