These metadata were created using the Minnesota Geographic Metadata Guidelines .
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 |