Geochemical, petrophysical, and drill hole database for Mesoproterozoic igneous rocks and iron ore deposits of the St. Francois Mountains, southeast Missouri

Geochemical, petrophysical, and depth to the Paleozoic-Precambrian basement interface from drill hole data for Mesoproterozoic igneous rocks and iron ore deposits of the St. Francois Mountains, southeast Missouri (MMDB) are provided in this data release. The samples were collected as part of various agency programs and projects from 1967 through 2019. Most samples were collected by agency personnel and analyzed in agency laboratories, under contracts in commercial analytical laboratories, or in the field. The geochemical data compilations include historical geochemical data archived in the USGS National Geochemical Database (NGDB), the Missouri Geological Survey (MGS) of the Missouri Department of Natural Resources, and other sources. The data tables describe historical and new quantitative and qualitative geochemical analyses. The analytical results were determined by 120 laboratory and field analytical methods performed on 8,250 rock and 25 mineral samples. The MMDB data are the most accurate and complete to date and should be useful for a wide variety of geochemical studies. The petrophysical data set contains measurements of density and magnetic susceptibility of Mesoproterozoic igneous rocks in southeast Missouri. Density and magnetic susceptibility measurements are also made on drill core and hand samples collected at the iron-oxide apatite (IOA) and iron-oxide copper gold (IOCG) deposits at Pea Ridge (IOA), Iron Mountain (IOA), Pilot Knob (IOA), Shepard Mountain (IOA), and Cedar Hill (IOA), Bourbon (IOA) and Boss (IOCG). In addition, measurements of samples from outcrops and drill cores were made on unmineralized regional geologic units across the St. Francois terrane. The drill hole depth and stratigraphic data from 2,681 drill holes that penetrated the Paleozoic-Precambrian unconformity are also included in this database.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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catalog_@id https://ddi.doi.gov/usgs-data.json
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catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-65c3a9d1d34ef4b119cae59b
metadata_type geospatial
modified 2024-12-05T00:00:00Z
old-spatial -95.5471, 36.1198, -89.5345, 40.596
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 4edb24528734be7e13a6491fbfe8787ff08139c9224a67ebd11f2ef43827ed23
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-95.5471, 36.1198], [-95.5471, 40.596], [ -89.5345, 40.596], [ -89.5345, 36.1198], [-95.5471, 36.1198]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • aluminum
  • analytical-chemistry
  • antimony
  • arsenic
  • barium
  • beryllium
  • bismuth
  • boron
  • boss-bixby-mineral-deposit
  • bound-or-essential-water
  • bourbon-mineral-deposit
  • bromine
  • bulk-density
  • cadmium
  • calcium
  • calcium-carbonate
  • camels-hump-mineral-deposit
  • carbon
  • carbon-dioxide
  • carbonate-carbon
  • cerium
  • cesium
  • chemical-analysis
  • chlorine
  • chromium
  • cobalt
  • copper
  • drill-core
  • drill-cuttings
  • drillhole
  • dysprosium
  • erbium
  • europium
  • exploration-geochemistry
  • ferric-iron
  • ferrous-iron
  • fluorine
  • gadolinium
  • gallium
  • geochemical-data
  • geochemistry
  • geoscientificinformation
  • germanium
  • gggsc
  • gold
  • hafnium
  • holmium
  • igneous-rocks
  • indium
  • iridium
  • iron
  • ketcherside-gap-mineral-deposit
  • kratz-spring-mineral-deposit
  • lanthanum
  • lead
  • lithium
  • loss-on-ignition
  • lutetium
  • magnesium
  • magnetic-susceptibility
  • manganese
  • mccracken-core-library-and-research-center
  • mercury
  • mesoproterozoic
  • metamorphic-rocks
  • mineral-resources
  • missouri
  • missouri-geological-survey
  • moisture-or-nonessential-water
  • molybdenum
  • mrp
  • national-geochemical-database
  • neodymium
  • ngdb
  • nickel
  • niobium
  • operation-basement
  • organic-carbon
  • palladium
  • pea-ridge-mineral-deposit
  • petrophysical-data
  • phosphorus
  • platinum
  • plutonic-rocks
  • potassium
  • praseodymium
  • precambrian
  • proterozoic
  • rhenium
  • rhodium
  • rock-chemistry
  • rubidium
  • ruthenium
  • samarium
  • scandium
  • sedimentary-rocks
  • selenium
  • silicon
  • silver
  • sodium
  • st-francois-mountains
  • strontium
  • sulfur
  • tantalum
  • tellurium
  • terbium
  • thallium
  • thorium
  • thulium
  • tin
  • titanium
  • total-water
  • tungsten
  • u-s-geological-survey
  • united-states
  • uranium
  • usgs
  • usgs-65c3a9d1d34ef4b119cae59b
  • usgs-geology-geophysics-and-geochemistry-science-center
  • usgs-mineral-resources-program
  • vanadium
  • volcanic-rocks
  • ytterbium
  • yttrium
  • zinc
  • zirconium
isopen False
license_id notspecified
license_title License not specified
maintainer Matthew Granitto
maintainer_email granitto@usgs.gov
metadata_created 2025-09-23T20:09:07.593932
metadata_modified 2025-09-23T20:09:07.593938
notes Geochemical, petrophysical, and depth to the Paleozoic-Precambrian basement interface from drill hole data for Mesoproterozoic igneous rocks and iron ore deposits of the St. Francois Mountains, southeast Missouri (MMDB) are provided in this data release. The samples were collected as part of various agency programs and projects from 1967 through 2019. Most samples were collected by agency personnel and analyzed in agency laboratories, under contracts in commercial analytical laboratories, or in the field. The geochemical data compilations include historical geochemical data archived in the USGS National Geochemical Database (NGDB), the Missouri Geological Survey (MGS) of the Missouri Department of Natural Resources, and other sources. The data tables describe historical and new quantitative and qualitative geochemical analyses. The analytical results were determined by 120 laboratory and field analytical methods performed on 8,250 rock and 25 mineral samples. The MMDB data are the most accurate and complete to date and should be useful for a wide variety of geochemical studies. The petrophysical data set contains measurements of density and magnetic susceptibility of Mesoproterozoic igneous rocks in southeast Missouri. Density and magnetic susceptibility measurements are also made on drill core and hand samples collected at the iron-oxide apatite (IOA) and iron-oxide copper gold (IOCG) deposits at Pea Ridge (IOA), Iron Mountain (IOA), Pilot Knob (IOA), Shepard Mountain (IOA), and Cedar Hill (IOA), Bourbon (IOA) and Boss (IOCG). In addition, measurements of samples from outcrops and drill cores were made on unmineralized regional geologic units across the St. Francois terrane. The drill hole depth and stratigraphic data from 2,681 drill holes that penetrated the Paleozoic-Precambrian unconformity are also included in this database.
num_resources 2
num_tags 134
title Geochemical, petrophysical, and drill hole database for Mesoproterozoic igneous rocks and iron ore deposits of the St. Francois Mountains, southeast Missouri