County Geologic Atlas Program


Southern Red River Valley, Minnesota Regional Hydrogeologic Assessment, Part B

Minnesota Geographic Metadata Guidelines
Version 1.0.4 - July 1, 1997

A State Version of the FGDC Content Standards for Geospatial Metadata


Data Set Name: MAJAQ

Metadata Entered By: Randy McGregor

Date: 1/21/99


Section 1 Identification Information
Originator Mike Trojan
Title MAJAQ
Minnesota Clearinghouse ID  
Abstract Four major aquifers in the study area
Purpose Regional Hydrogeologic Assessment Program: Atlas RHA 3 Part B, Plate 3, Surficial Regimes
Time Period of Content Date  
Currentness Reference  
Progress Complete
Maintenance and Update Frequency None planned
Spatial Extent of Data
 
Southern Red River Vally, Minnesota, including: all of Norman, Clay, and Wilkin counties, western portions of Mahnomen, Becker, and Otter Tail counties; part of northern Traverse County, and part of northwestern Grant County. This is the area of Minnesota within USGS 1:100,000 scale tile-sheets 1910 (Ada), 2310 (Fargo), and 2710 (Wahpeton).
West Bounding Coordinate 207,977 --
East Bounding Coordinate 274,044 --
North Bounding Coordinate 5,267,921 --
South Bounding Coordinate 5,098,424 --
Place Keywords Becker, Clay, Grant, Mahnomen, Norman, Otter Tail, Traverse, Wilkin counties, Red River of the North, Red River Valley
Theme Keyword Aquifer, ground-water
Theme Keyword Thesaurus  
Access Constraints None
Use Constraints Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements.
Contact Person See Metadata Reference Information, below
Contact Organization "
Contact Person Position "
Contact Address "
Contact City "
Contact State or Province "
Contact Postal Code "
Contact Voice Phone "
Contact Fax Phone "
Contact E-mail Address "
Browse Graphic File Name  
Browse Graphic File Description  
Associated Data Sets Southern Red River Valley Regional Hydrogeologic Assessment, Part A - Produced by the Minnesota Geological Survey

Section 2 Data Quality Information
Attribute Accuracy  
Logical Consistency Data are topologically correct using ARC/INFO 7.0.3
Completeness  
Horizontal Positional Accuracy  
Vertical Positional Accuracy  
Lineage This coverage is derived from several sources. How they were eventually combined has not been documented. The most likely explanation is that the ARCEDIT command 'get' was used to bring polygon and line features of the four aquifers into a single coverage.

The Buffalo Aquifer

  • This is a collection of two surficial geology types from the Minnesota Geological Survey (MGS)'s surficial geology coverage: 'Ql/g (Thin lake sediment over sand and gravel),' and 'Ql/n (Nearshore sediment).' If wells within a particular 'nearshore sediment' polygon had sediment texture characteristics similar to the characteristics of 'thin lake sediment over sand and gravel' (based on Couny Well Index geology information), then the polygon was considered to be part of the Buffalo Aquifer.
Unnamed Aquifer
  • Mike Trojan used County Well Index Well Log data to estimate sand thickness at each well location. A 1:200,000 scale plot showing these points and their estimated sand thickness values in feet, was created in ARCPLOT.
  • 'Qls (Shoreline sediment)' polygons from MGS' surficial geology map which were in areas where sand thickness was estimated to be greater than 20 feet (based on comparisons with the sand thickness plot) were selected.
Pelican River Aquifer
  • A 1:200,000 scale template showing county boundaries was created in ARCPLOT.
  • Mike Trojan hand-drew the Pelican River Aquifer onto the template by copying the outline of this aquifer from one the 1:126,720 scale maps of it featured in "PLATE 1 - HYDROGEOLOGIC MAPS OF THE SURFICIAL-OUTWASH AQUIFER" from the USGS report, "THE APPRAISAL OF THE PELICAN RIVER SAND-PLAIN AQUIFER, WESTERN MINNESOTA. (1972)"
  • The outline was digitized in ARCEDIT.
Wahpeton Aquifer
  • A 1:200,000 scale template showing the wells from County Well Index with well depth values of 240 ft. or greater was created in ARCPLOT. 
  • Mike Trojan drew this aquifer on the template by outlining clusters of wells with similar cation / anion characteristics. See Mike Trojan ('Contact Person' above) for more detailed information about the chemical characteristics used to delineate this aquifer.
  • The aquifer was digitized in ARCEDIT.
Source Scale Denominator 200,000

Section 3 Spatial Data Organization Information
Native Data Set Environment ARC/INFO
Geographic Reference for Tabular Data Meters
Spatial Object Type Vector
Vendor Specific Object Types Polygons
Tiling Scheme The area of Minnesota within USGS 1:100,000 scale tile-sheets 1910 (Ada), 2310 (Fargo), and 2710 (Wahpeton).

Section 4 Spatial Reference Information
Horizontal Coordinate Scheme UTM
Ellipsoid GRS 1980
Horizontal Datum NAD83
Horizontal Units Meters
Altitude Datum N.A.
Altitude Units N.A.
Depth Datum N.A.
Depth Units N.A.
Cell Width N.A.
Cell Height N.A.
   

Section 5 Entity and Attribute Information
Entity and Attribute Overview
 
Entity and Attribute Detailed Citation
 
Table Name Field Name Begin Column Definition Valid Values Description 
MAJAQ.PAT         Polygon Attribute Table
  name 17 10,10,c   Aquifer Name
        'buffalo' Buffalo
        'pelican' Pelican River
        'trojan' Unnamed
        'wahpeton' Wahpeton 

Section 6 Distribution Information
Publisher Minnesota Department of Natural Resources, Division of Waters
Publication Date 2000
Online Linkage  
Distributor Contact Person See Metadata Reference Information, below
Distributor Organization "
Distributor Position "
Distributor Address "
Distributor City "
Distributor State or Province "
Distributor Postal Code "
Distributor Voice Phone "
Distributor Fax Phone "
Distributor
E-mail Address
"
Distributor's Data Set Identifier   
Distribution Liability This map was prepared from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which this map is based. However, the Department of Natural Resources does not warrant the accuracy, completeness, or any implied uses of these data.

Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements.

Transfer Format Name ARC/INFO, ArcExport, INFO
Transfer Format Version Number 7.1.1
Transfer Size  
Ordering Instructions Download export files or shapefiles from: Southern Red River Valley Regional Hydrogeologic Assessment, Part B: Metadata for GIS and Digital
   

Section 7 Metadata Reference Information
Metadata Date  
Metadata Contact Person  
Metadata Contact Organization Minnesota Department of Natural Resources, Division of Waters
Metadata Contact Position  
Metadata Contact Address 500 Lafayette Road
Metadata Contact City St. Paul
Metadata Contact State or Province MN
Metadata Contact Postal Code 55155 - 4032
Metadata Contact Voice Phone 651 - 296 - 4800
Metadata Contact Fax Phone 651 - 296 - 0445
Metadata Contact
E-mail Address
 
Metadata Standard Name Minnesota geographic Metadata Guidelines
Metadata Standard Version 1.0.4
Metadata Standard Online Linkage