Metadata for the

# BEDROCK GEOLOGY OF THE MINNESOTA RIVER VALLEY IN RENVILLE, REDWOOD, BROWN, AND NICOLLET COUNTIES, MINNESOTA

Developed by

# University of Minnesota-Duluth, Natural Resources Research Institute

These metadata were created using the Minnesota Geographic Metadata Guidelines .

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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
Originator | University of Minnesota-Duluth, Natural Resources Research Institute
Title | BEDROCK GEOLOGY OF THE MINNESOTA RIVER VALLEY IN RENVILLE, REDWOOD, BROWN, AND NICOLLET COUNTIES, MINNESOTA
Abstract | This data set contains bedrock outcrops in the Minnesota River Valley of Renville, Redwood, and Brown Counties, Minnesota, as mapped by Dr. James A. Grant in 1965-1966. Also included are several outcrops mapped by E. H. Lund in 1949 which were not included in Dr. Grant's work.
Purpose | To provide a data set of known bedrock occurrences in this portion of the Minnesota River Valley.
Time Period of Content Date | 1966
Currentness Reference | J. A. Grant data: originally drawn on aerial photos dated 5-8-51 and 4-24-64 from field work done in 1965-1966. E. H. Lund data: Minnesota Geolical Survey map; basemap from aerial photographs, geology by Lund, 1949.
Progress | Complete
Maintenance and Update Frequency | Completed, pending final approval by Dr. James A. Grant
Spatial Extent of Data | The Minnesota River Valley in Renville, Redwood, and Brown Counties, Minnesota.
Bounding Coordinates | -95.385943 -94.657734 44.727053 44.381852
Place Keywords | Minnesota River Valley, Brown County, Redwood County, Renville County, Sacred Heart, Delhi, Redwood Falls, Morton, Cedar Mountain, and Fort Ridgely.
Theme Keywords | Aluminous and iron-rich schist and gneiss, amphibolite, banded iron formation, basalt, bedrock, Cedar Mountain Gabbro, Cedar Mountain Granodiorite, diabase, Fort Ridgely Granite, granite, granitic gneiss, granodiorite, Morton quartz monzonite gneiss, quartz monzonite, peridotite, ribbed granite, Sacred Heart Granite, syenite-amphibolite complex
Theme Keyword Thesaurus | None
Access Constraints | ?
Use Constraints | ?
Contact Person Information | Dr. James A. Grant, Head, UMD-Geology University of Minnesota-Duluth, Department of Geology 227 Heller Hall, College of Science and Engineering Duluth, Minnesota 55812 Phone: 218-726-7238 FAX: 218-726-8275 E-mail: jgrant@d.umn.edu
Browse Graphic File Name | none available
Browse Graphic File Description |
Associated Data Sets |
### Section 2 | ### Data Quality Information - - - - - - Go back to top
Attribute Accuracy | Review of earlier project by Dr. James A. Grant indicates > 95% accuracy on bedrock locations and lithologies, pending his final review.
Logical Consistency | Data exist as closed polygons and point locations.
Completeness | Bedrock occurrences contained within this data set are those mapped by Dr. James A. Grant in 1965-1966, with the addition of several selected occurrences mapped by E. H. Lund in 1949.
Horizontal Positional Accuracy | The horizontal positional accuracy of the data set is expected to be +/- 20 meters. Exceptions to this would be the Breitcreutz and Delhi detail areas, whch may exhibit a decreased horizontal postitional accuracy due to lack of sufficient reference points in the enlarged aerial photos to accurately align for digitization.
Vertical Positional Accuracy | n/a
Lineage | The data set was initially derived by digitizing into AutoCAD from the original outcrop drawings done on 1951 and 1964 aerial photos by Dr. James A. Grant and from paper copies of E. H. Lund's maps produced from aerial photos. With the insertion of Digital Orthophoto Quads (DOQs) into the AutoCad drawing, the outcrops were adjusted as deemed necessary to fit actual ground conditions depicted on both the aerial photos and the DOQs.
Source Scale Denominator |
### Section 3 | ### Spatial Data Organization Information - - - - - - Go back to top
Native Data Set Environment | AutoCAD MAP Release 2.0, Arcview version 3.1
Geographic Reference for Tabular Data | UTM Coordinates, Digital Orthophoto Quads (DOQ's)
Spatial Object Type | Point
Vendor Specific Object Types | 'cell', 'column', 'label', 'layer', 'line', 'point', 'polygon', 'row'
Tiling Scheme |
### Section 4 | ### Spatial Reference Information - - - - - - Go back to top
Horizontal Coordinate Scheme | UTM
Ellipsoid |
Horizontal Datum | NAD83
Horizontal Units | Meters
Distance Resolution |
Altitude Datum | Not applicable
Altitude Units | Not applicable
Depth Datum | Not applicable
Depth Units | Not applicable
UTM Zone Number | 15
### Section 5 | ### Entity and Attribute Information - - - - - - Go back to top
Entity and Attribute Overview | The data set contains bedrock outcrops with attributes referencing location and lithology.
Entity and Attribute Detailed Citation |
### Section 6 | ### Distribution Information - - - - - - Go back to top
Publisher | Minnesota Department of Natural Resources, Minerals Division
Publication Date |
Contact Person Information | , , Phone: FAX: E-mail: none available
Distributor's Data Set Identifier |
Distribution Liability |
Transfer Format Name | Arcview version 3.1
Transfer Format Version Number |
Transfer Size |
Ordering Instructions |
Online Linkage | none available
### Section 7 | ### Metadata Reference Information - - - - - - Go back to top
Metadata Date | 11/30/1998
Contact Person Information | Julie Oreskovich, Assistant Scientist Natural Resources Research Institute Natural Resources Research Institute, 5013 Miller Trunk Highway Duluth, Minnesota 55811-1442 Phone: 218-720-4331 FAX: 218-720-9410 E-mail: joreskov@sage.nrri.umn.edu
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 11/30/1998.

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