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The Montana Bureau of Mines and Geology (MBMG) Mining Property File collection was amassed over the years through private and industry donations of engineering and geologic reports, pictures, correspondence, news clippings, and production information. The collection presently contains over 4,400 property-specific files (records). The physical files are organized first by Montana county and then by mine or project name. Files may contain information related to a particular mining claim, a collection of claims, or a mining exploration project. Metadata describing each record includes property name, location (county, historical mining district, township, range and section), georeferences (latitude and longitude), and...
Categories: Data,
Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
The Earthquake Studies Office (ESO) of the Montana Bureau of Mines and Geology opened in June, 1980 to operate the Montana Regional Seismograph Network. The office collects and analyzes seismic data and reports earthquake information. The ESO also collects and stores seismograms recorded in Montana by other groups and agencies. Prior to 1989, the only method used to collect earthquake data was paper seismograms recorded on drum recorders using pen and ink, or heat pen and heat-sensitive paper. Thus, paper seismograms recorded before 1989 are original (and irreplaceable) records. Beginning August 1989, a triggered digital recording system was implemented that captured data for larger events but did not provide continuous...
Categories: Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
Static metadata (current to August 2018) of Minnesota's borehole geophysical log collection maintained by the Minnesota Geological Survey. This collection is web-accessible through the MGS Open Data Portal at https://z.umn.edu/borehole_geo, where users can obtain the most up-to-date information pertaining to old and new borehole geophysical logs and download corresponding PDF and LAS files for each log (if available). The Borehole Geophysical Database (BGD) is a collection of over 7000 borehole geophysical logs of water wells and drill holes throughout Minnesota. Database collections reside at the Minnesota Geological Survey (MGS) and are continually maintained and expanded upon by MGS staff as part of MGS mapping...
Categories: Data,
Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
The Bureau has developed an aerial photo repository. The photos have accumulated over decades, mostly through donations and some purchases for mapping projects. The photos are stored in 45 4-drawer file cabinets ; about half of the photos remain in cardboard boxes (112) in which they were shipped to us. We estimate that there are over 200,000 photos (of varying condition) in the repository. The photos are used frequently by Bureau staff to assist with geologic field mapping and other investigations, and less frequently by the public. Full inventory, reorganization, filing, and creation of indices are short- to middle-term goals. Digitizing of the indices and the photos are desirable long-term goals. Aerial Photographs...
Categories: Physical Item;
Types: Collection,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ndc_collection
The collection is housed in a modern building just off the Montana Tech campus. It is organized in 2,679 drawers and is estimated to contain more than 80,000 specimens including many polished slabs and over 10,000 thin sections. The collection was initiated as early as 1940 and expanded through 1981. The specimens in this unique and outstanding collection are largely from Butte (Montana) underground mines, but a significant number are from other districts in which the Anaconda Company had interests or were visited by Anaconda Company geologists. A variety of specimens were collected by Anaconda Company geologists in their travels. Sample locations from the Butte mines are plotted on min-level maps (scale 1 in =...
Categories: 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
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