Estimated Thickness of the Lower Miocene 2 Sequence, Gulf Coast
type: Dataset
description: The thickness contours were created using biostratigraphic data in the Paleo-Data, Inc., Tenroc Regional Geologic Database. The depths of the microfossil locations were associated with the wells data provided by the Louisiana Department of Natural Resources. Because of the proprietary nature of the Tenroc database, no actual data can be shown and only those data points contained in the Louisiana State wells database are included in the control points layer. Contouring was accomplished in Dynamic Graphics, Inc., EarthVision modeling software (v.5) using minimum tension gridding. Three custom programs were used to convert contour lines generated from grids in EarthVision to Arc/Info coverages and then to shapefiles. The data are provided as both lines and polygons (lm2thicklg.shp and lm2thickpg.shp), and the public wells that penetrate the entire thickness of the Lower Miocene 2 sequence are provided in a point shapefile (lm2thickptg.shp). These datasets contain basic data and interpretations developed and compiled by the U.S. Geological Survey's Framework Studies and Assessment of the Gulf Coast Project. Other major sources of data include publicly available information from state agencies as well as publications of the U.S. Geological Survey and other scientific organizations. In cases where company proprietary data were used to produce various derivatives such as contour surfaces, the source is cited but the data are not displayed.
issued: 2025-09-23T16:47:06.298835
modified: 2021-06-15T00:00:00+00:00
spatial: Location
contact point: Organization
  fn: U.S. Geological Survey - CERSC Data Management Services Project
keyword: AmeriGEO
keyword: AmeriGEOSS
keyword: CKAN
keyword: GEO
keyword: GEOSS
keyword: National
keyword: North America
keyword: United States
keyword: coal
keyword: coalbed-methane
keyword: coalbed-methane-resources
keyword: contours
keyword: earth-science
keyword: economic-geology
keyword: economy
keyword: energy-resources
keyword: geology
keyword: geoscientificinformation
keyword: gulf-coast
keyword: gulf-coast-framework-studies
keyword: gulf-of-mexico-coast
keyword: gulfcoastframework
keyword: gulfroom
keyword: isopach
keyword: la
keyword: louisiana
keyword: miocene
keyword: natural-gas
keyword: natural-gas-resources
keyword: natural-resources
keyword: oil
keyword: oil-sand-resources
keyword: oilgas
keyword: petroleum
keyword: resource-assessment
keyword: tertiary-systems
keyword: thickness
keyword: u-s-geological-survey
keyword: united-states
keyword: usgs
keyword: usgs-60c8e5ddd34e86b9389dcf19
theme: {geospatial}

Digital Data
type: Distribution
description: Landing page for access to the data
format: XML
issued: 2025-09-13T01:33:35.999331
modified: 2025-09-23T16:47:06.260112
access URL: https://doi.org/10.5066/P9VU6W24
media type: application/http

Original Metadata
type: Distribution
description: The metadata original format
format: XML
issued: 2025-09-15T19:48:21.258608
modified: 2025-09-23T16:47:06.261054
access URL: https://data.usgs.gov/datacatalog/metadata/USGS.60c8e5ddd34e86b9389dcf19.xml
media type: text/xml

US Migrating
type: Agent