Folders: ROOT > ScienceBase Catalog > ReSciColl Archive > Minnesota Geological Survey ( Show all descendants )
33 results (286ms)
Location
Folder
ROOT _ScienceBase Catalog __ReSciColl Archive ___Minnesota Geological Survey Filters
Date Range
Extensions Types Contacts
Categories Tag Types Tag Schemes |
Compiled dataset of active seismic data and related scanned active seismic reflection profiles, providing depth and velocity information, from the Minnesota Department of Natural Resources and Minnesota Geological Survey.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Geological Collection,
Minnesota,
geophysics,
minnesota,
ndc_collection,
Geochronology is the science of determining the age of rocks, fossils, and sediments and other materials. This database contains geochronologic data in GIS point format for published geochronological dates on Precambrian rocks, acquired and published by the Minnesota Geological along with selected published dates from adjacent. Compiled by the MGS for distribution. The file contains a full reference for each sample. To view the data on the web just click on this link to the Geochronology sample locations with the Minnesota bedrock geology and topography web map. A second link is provided that shows the geochron sample locations over the bedrock geologic map of Minnesota.
Paleontological specimens related to University of Minnesota School of Earth Sciences research; about a quarter from Minnesota; includes reference collections for lower Paleozoic of the upper Mississippi valley Stored at the Bell Museum
Categories: Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
Thin sections, nearly all Precambrian rocks, nearly all related to mapping projects; many several decades old total to the nearest thousand
Categories: Data,
Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
Static metadata (current to June 2023) of Minnesota's borehole drill cuttings collection maintained by the Minnesota Geological Survey (MGS). This collection of over 6,400 sets of drill cuttings dates as far back as the late 1800s. The collection is stored in our soil lab at our office and is accessible to the public by appointment. Each borehole cutting set is assigned a MGS lab number upon arrival, processed and washed by UMN student soil lab workers, and stored chronologically in cardboard boxes. Each cutting set cardboard box contains multiple paper envelopes representing a sample taken at that depth. Each paper envelope contains ~100-200 grams of original sample and ~100 grams of washed sample processed by...
Categories: Data,
Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Geological Collection,
ndc_collection
Raster grids depicting the current knowledge for elevation for the bedrock surface, pre-Mesozoic surface, the Precambrian surface and the basement surface based on the addition of new data from completed mapping. Basement is the top of structurally complex Precambrian rocks where the Phanerozoic and Proterozoic basins are removed based on geophysical modeling and drill hole interpretation. Statewide elevation datasets are stored as contoured line files and attributed with publication source, contour elevation and date and time of last edit. New raster grids are generated with the 'Topo to Raster' tool in ESRI ArcMap 10.7. 6/2023 Update: The 2023 version of rasters are currently not available online to download but...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Geological Collection,
Minnesota,
basement,
bedrock,
elevation,
Geological hand samples and thin section database consists of four datasets. These datasets are the Thinsection locations, 2012 - 2020, Handsample locations, 2012 - 2020, Winchell rock catalog, 2020 and the Pillsbury rock catalog, 2020. All locations are available for viewing and downloading. The MGS hand sample database is a digital database cataloging approximately 45,000 physical geologic hand samples collected in Minnesota over the last 100+ years. Hand samples are property of the MGS and currently reside at the MN DNR core facility in Hibbing, Minnesota. Each sample has the minimum identifying data of Sample ID and location. Many samples are much more fully attributed with data including, but not limited...
Over 61,000 Minnesota Geological Survey gravity station represents more than 40 years of surveying. The 2003 release added over 2000 stations relative to its 1991 predecessor as a result of ongoing project work, along with inclusion of additional archival data. Ongoing augmentation of the database is based on measurements at stations on profiles spaced at 0.25 mile intervals along corridors, to areas where stations are spaced at 0.5 to 1.0 mile intervals, and in some areas 2 miles, along available roads and trails. Most of the new measurements were taken with a Lacoste and Romberg G-320 gravity meter with a stated precision of 0.01 milligal. As a result of various error sources, gravity values are considered precise...
Categories: Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
Minnesota Geological Survey is working with partners to build a statewide, consistent, standardized, and documented geochemical database, due to the convergence of: 1) systematic sampling & analysis of soils and stream sediments by the USGS & the MGS; 2) completion of a statewide till geochemical survey by MGS in cooperation with industry, and 3) renewed efforts by Minnesota Pollution Control Agency (MPCA) to ensure optimal usability of their state ground-water chemistry data. The soil/sediment data are distributed statewide, were collected over a short period of time, and samples from each project were analyzed by the individual labs following consistent and documented protocols, while the MPCA water analyses were...
Categories: Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
This collection consists of field notebooks created by the personnel of the Minnesota Geological Survey (MGS) and its predecessor, the Minnesota Geological and Natural History Survey (MGNHS). The notes include basic data used to compile annual reports and bulletins on geological matters. For a description of the extent of geological work performed during the eras of the MGNHS and MGS, consult George M. Schwartz, “History of the Minnesota Geological Survey,” which identifies the individual studies made by officers of the survey between 1872 and 1963. The MGS was a major source of funding for faculty research, which focused on field petrology, mineralogy and economic geology and aligned to the individual professional...
Categories: Data,
Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Minnesota,
field,
geology,
notebooks,
notes
A compilation of drill core logs and thin section notes, including well abandonment reports, drill hole location maps, and associated notes, from Minnesota Geological Survey Precambrian geologists. These logs and notes were scanned using NGGDPP FY22 support and will support future investigations of Precambrian geology by MGS Precambrian geologists, other statewide stakeholders, industry, and universities.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Geological Collection,
Minnesota,
core,
drill,
geology,
Minnesota Geological Survey (MGS) aeromagnetic data were acquired during a 1979-1991 statewide survey program, and were completely re-processed in 2005/2007 to recover line data that was missing from the primary archive at the National Geophysical Data Center, to improve line-leveling errors in the data, and to re-grid the data. Aeromagnetic database
Categories: Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
Samples are collected by MGS staff at outcrops, from auger drill holes, and rotary sonic drill holes. Samples are processed by student technicians to determine sample texture (% gravel, sand, silt, and clay). Approximately 100-150 grams of original sample is stored in a packet along with subpackets of the gravel fraction, 1-2 mm sand fraction, and <2 mm sand fraction. All lab data are recorded on paper lab sheets stored in the lab. Technicians also enter data into the MGS lithological database. Grain count analyses have been completed by glacial geologists on somewhere between 25 and 50% of these samples. These results are also recorded on paper sheets and in the database.
Categories: Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
|
|
