Minnesota Geochemical Atlas
Go to Section:- Overview
- Data Quality
- Data Organization
- Coordinate System
- Attributes
- Distribution - Get Data
- Metadata Reference
Section 1: Overview
Originator:Minnesota Geological Survey
Title:
Minnesota Geochemical Atlas
Abstract:
Geochemistry of soil parent material (Till samples) collected by MGS staff.
The rocks and soils that are the foundation of our environment leave an imprint on the chemistry of our water and our lives. This chemical landscape reflects a combination of natural history and cumulative human impacts, and it influences biodiversity and human health. Geochemical mapping thus is needed to clarify elemental variations, and to support assessment of the natural and human-influenced factors that dictate these variations. The Minnesota Geological Survey (MGS) and the Minnesota Pollution Control Agency (MPCA), in cooperation with the United States Geological Survey (USGS), therefore have assembled three geochemical data sets for soil and water as a basis for an atlas that will provide an overview of geochemical patterns, and a reference that will place more thorough environmental geochemical surveys into a context. Data contributed to the project were derived from soil, soil parent material, and well water samples analyzed following USGS, Geological Survey of Canada, and Environmental Protection Agency protocols, respectively. The soil data include stream sediments largely in the western part of the state, and the soil parent material data are from sites underlain by till. The well water samples were from multiple aquifers utilized for drinking water, at greatly varying depth and geology.
Purpose:
Samples collected as part of a diamond indicator mineral study in corporation with the company WMC Resources Ltd.
Time Period of Content Date:
2009
Currentness Reference:
publication date
Progress:
Complete
Maintenance and Update Frequency:
None Planned
Spatial Extent of Data:
Much additional chemical data available from the indicator mineral project. Check the Minnesota Geological Survey Web site for Indicator Mineral Survey.
Bounding Coordinates:
-97.615841
-89.616798
49.331655
43.186205
Place Keywords:
Theme Keywords:
till
Theme Keyword Thesaurus:
Access Constraints:
None
Use Constraints:
None
Contact Person Information:
Richard Lively,
Minnesota Geological Survey
,
Phone:
Email: lively@umn.edu
Browse Graphic:
None available
Associated Data Sets:
Section 2: Data Quality
Attribute Accuracy:
Logical Consistency:
Completeness:
Horizontal Positional Accuracy:
+- 30 m
Lineage:
Section 3: Spatial Data Organization (not used in this metadata)
Section 4: Coordinate System
Horizontal Coordinate Scheme:
Universal Transverse Mercator
UTM Zone Number:
15
Horizontal Datum:
NAD83
Horizontal Units:
meters
Vertical Datum:
Vertical Units:
Depth Datum:
Depth Units:
Cell Width:
0.000100
Cell Height:
0.000100
Section 5: Attributes
Overview:
Detailed Citation:
Table Detail:
soilparent_data_plots| Field Name | Valid Values | Definition | Definition Source |
|---|
| OBJECTID | - | Internal feature number. | ESRI |
| Shape | - | Feature geometry. | ESRI |
| FIELD | - | | |
| COLL_DATE | - | | |
| DEPTH_M | - | | |
| LITHOLOGY | - | Source provenance of till sample | |
| STRAT | - | general stratigraphic unit | |
| UTM_E | - | | |
| UTM_N | - | | |
| AG_PPM | - | | |
| AL_PCT | - | | |
| AS_PPM | - | | |
| BA_PPM | - | | |
| BE_PPM | - | | |
| BI_PPM | - | | |
| CA_PCT | - | | |
| CD_PPM | - | | |
| CE_PPM | - | | |
| CO_PPM | - | | |
| CR_PPM | - | | |
| CS_PPM | - | | |
| FE_PCT | - | | |
| GA_PPM | - | | |
| GE_PPM | - | | |
| HF_PPM | - | | |
| IN_PPM | - | | |
| K_PCT | - | | |
| LA_PPM | - | | |
| LI_PPM | - | | |
| MG_PCT | - | | |
| MN_PPM | - | | |
| MO_PPM | - | | |
| NA_PCT | - | | |
| NB_PPM | - | | |
| P_PPM | - | | |
| PB_PPM | - | | |
| RB_PPM | - | | |
| RE_PPM | - | | |
| S_PCT | - | | |
| SB_PPM | - | | |
| SE_PPM | - | | |
| SN_PPM | - | | |
| SR_PPM | - | | |
| TA_PPM | - | | |
| TE_PPM | - | | |
| TH_PPM | - | | |
| TI_PCT | - | | |
| TL_PPM | - | | |
| U_PPM | - | | |
| V_PPM | - | | |
| W_PPM | - | | |
| Y_PPM | - | | |
| ZN_PPM | - | | |
| ZR_PPM | - | | |
| AU_PPM | - | | |
| PT_PPM | - | | |
| PD_PPM | - | | |
| CU_PPM | - | | |
| NI_PPM | - | | |
Section 6: Distribution
Publisher:
Minnesota Geological Survey
Publication Date:
2009
Contact Person Information:
,
,
Phone:
Email:
Distributor's Data Set Identifier:
Downloadable Data
Distribution Liability:
Online Linkage:\\MGSP43\C\Working\usgs_AGrosz\Mcc_project\statewide_geochem.gdb
Section 7: Metadata Reference
Metadata Date:
08/19/2009
Contact Person Information:
,
Minnesota Geological Survey
St. Paul,
Minnesota
55114
Phone:
Email: lively@umn.edu
Metadata Standard Name:
FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version:
FGDC-STD-001-1998