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This
page last updated: 2008
Metadata created using Minnesota
Geographic Metadata Guidelines
Originator |
MN Department of Natural
Resources, Division of Lands and Minerals, Mineral Potential Section,
Aggregate Resource Mapping Program |
Abstract |
This dataset consists of information
about the geology, geological characteristics, and sand and gravel potential
of 226 map units. Five fields relate to the surficial geology of the map
unit, including id, sediment, landform, surficial geology description, and
dominant lithology. Five fields relate to sand and gravel characteristics,
including probability, quality, texture, overburden thickness, and deposit
size of the map unit. These characteristics were used to determine the
aggregate potential of the map unit for sand and gravel. |
Browse Graphic |
None available |
Time Period of Content Date |
2007 |
Currentness Reference |
Data were gathered in the
fall of 2005 through the spring of 2006 and compiled in the spring of 2007. |
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
Mapping Program's datasets for Mille Lacs County are included in the file
milldata.zip, accessible from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html
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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" 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
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Section 1 |
Identification
Information |
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Originator |
MN Department of Natural Resources,
Division of Lands and Minerals, Mineral Potential Section, Aggregate Resource
Mapping Program |
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Title |
Mille Lacs County Aggregate
Resource Evaluation - Aggregate Potential - Sand and Gravel Potential -
millsgp |
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Abstract |
This dataset consists of
information about the geology, geological characteristics, and sand and
gravel potential of 148 map units. Five fields relate to the surficial
geology of the map unit, including id, sediment, landform, surficial geology
description, and dominant lithology. Five fields 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. |
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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. |
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Time Period of Content Date |
2007 |
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Currentness Reference |
Data were gathered in the
fall of 2005 through the spring of 2006 and compiled in the spring of 2007. |
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Progress |
Complete |
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Maintenance and Update Frequency |
None planned |
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Spatial Extent of Data |
Mille Lacs County, Minnesota
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Bounding Coordinates |
-93.81 |
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Place Keywords |
Mille Lacs County, Minnesota
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Theme Keywords |
Surficial geology,
geological characteristics, aggregate potential, sand and gravel |
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Theme Keyword Thesaurus |
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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 |
Aggregate Resource Mapping
Program, Industrial Minerals Geologist or GIS Specialist |
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Browse Graphic |
None available |
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Browse Graphic File Description |
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Associated Data Sets |
The
Aggregate Resource Mapping Program's datasets for Mille Lacs County are
included in the file milldata.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 sand and gravel
potential map 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. |
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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 9.2 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 |
Polygon |
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Tiling Scheme |
Mille Lacs 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 polygons were delineated
to represent geological features, geological characteristics, and aggregate
potential for sand and gravel. |
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Entity and Attribute Detailed Citation |
millsgp_att.htm |
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Section 6 |
Distribution Information |
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Publisher |
MN Department of Natural
Resources, Division of Lands and Minerals, Mineral Potential Section,
Aggregate Resource Mapping Program |
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Publication Date |
2008 |
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Contact Person Information |
Aggregate Resource Mapping
Program |
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Distributor's Data Set Identifier |
Mille Lacs County Aggregate
Resource Evaluation |
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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 |
mb for data, mb for
associated maps |
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Ordering Instructions |
The Aggregate Resource
Mapping Program's datasets for Mille Lacs County are included in the file milldata.zip,
accessible from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html
|
||
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. |
||
|
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Section 7 |
Metadata Reference
Information |
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Metadata Date |
2008 |
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Contact Person Information |
Aggregate Resource Mapping Program,
Industrial Minerals Geologist or GIS Specialist |
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Metadata Standard Name |
Minnesota Geographic
Metadata Guidelines |
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Metadata Standard Version |
1.2 |
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Metadata Standard Online Linkage |
This page last updated: 2008