Petroleum geology data from hydrous and anhydrous pyrolysis residues for coals and shales from the Cambrian through the Miocene

This data release contains programmed pyrolysis, organic petrographic (reflectance), and semiquantitative X-ray diffraction mineralogy data for subsurface coal and shale samples from around the world. Samples were subjected to hydrous or anhydrous pyrolysis experiments at varying temperatures and the resulting residues were analyzed via programmed pyrolysis and reflectance to document changes in thermal maturity.

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Campo	Valore
accessLevel	public
bureauCode	{010:12}
catalog_@context	https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy	https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier	USGS:5d921851e4b0c4f70d0ce85e
metadata_type	geospatial
modified	20201110
old-spatial	-151.0, 23.0, 85.0, 71.0
publisher	U.S. Geological Survey
publisher_hierarchy	Department of the Interior > U.S. Geological Survey
resource-type	Dataset
source_datajson_identifier	true
source_hash	795eb4a42e5a3c02450acf63ba5de6a0eba1b52a
source_schema_version	1.1
spatial	{"type": "Polygon", "coordinates": [[[-151.0, 23.0], [-151.0, 71.0], [ 85.0, 71.0], [ 85.0, 23.0], [-151.0, 23.0]]]}
theme	{geospatial}
Gruppi	AmeriGEOSS National Provider North America
Tag	alabama alaska alberta alum-shale-formation amerigeo amerigeoss australia bakken-formation barakar-formation barnett-formation bihar boquillas-formation caldwell-parish california cambrian canada carbonate carbondale-formation carter-county cenozoic china chlorite choctaw-county ckan clark-county colorado cretaceous desmoinesian devonian duvernay-formation england eocene excello-shale-member fairfax-county feldspar fort-union-formation freestone-county garfield-county geo geochemistry geoss gibson-county greeley-county green-river-formation harrison-county herrin-coal-member hi huron-member hydrogen-enrichment-index illinois illite india indiana jefferson-county joadja-formation jurassic kalmar-county kansas kaolinite kentucky kimmeridge-clay-formation knox-county leduc-county loi loss-on-ignition louisiana mahogany-oil-shale-zone-informal-in-parachute-creek-member marion-county mary-lee-cycle mclean-county mesoproterozoic mesozoic mineralogy miocene mississippi mississippian montana monterey-formation naborton-formation nanafalia-formation national neogene new-albany-shale niobrara-formation north-america north-dakota nowata-county ohio ohio-shale oi oklahoma oland ordovician organic-content oxygen-enrichment-index paleocene paleogene paleozoic pennsylvanian permian phanerozoic pi pottsville-formation powell-county production-index pyrite pyrolysis quartz red-river-parish richland-county rock-eval s1 s2 s3 san-saba-county santa-barbara-county senora-formation sentinel-butte-member shublik-formation smectite solid-bitumen-reflectance sweden texas thermal-maturity tmax tongue-river-member total-organic-carbon triassic tuscaloosa-county united-states usgs-5d921851e4b0c4f70d0ce85e utica-shale val-verde-county virginia vitrinite-reflectance ward-county wilcox-group woodford-shale wyodak-anderson-coal-zone-informal xiamaling-formation
isopen	False
license_id	notspecified
license_title	License not specified
maintainer	Paul C. Hackley
maintainer_email	phackley@usgs.gov
metadata_created	2025-11-21T15:03:18.282108
metadata_modified	2025-11-21T15:03:18.282112
notes	This data release contains programmed pyrolysis, organic petrographic (reflectance), and semiquantitative X-ray diffraction mineralogy data for subsurface coal and shale samples from around the world. Samples were subjected to hydrous or anhydrous pyrolysis experiments at varying temperatures and the resulting residues were analyzed via programmed pyrolysis and reflectance to document changes in thermal maturity.
num_resources	2
num_tags	140
title	Petroleum geology data from hydrous and anhydrous pyrolysis residues for coals and shales from the Cambrian through the Miocene