The legacy IGWS website is in the process of being decommissioned. Most services have been migrated to igws.indiana.edu. Only a few services will remain temporarily until the migration is complete..
Indiana University - Indiana Geological & Water Survey
Issue:
Many geological repositories include large amounts of stratigraphic and structural features data. One problem faced by managers of these archives is locating correct nomenclature to complement their data. The Geologic Names Committee (GNC) of the Indiana Geological & Water Survey (IGWS) is addressing this problem by developing an online database of geologic names officially recognized by the IGWS.
Objective:
The database facilitates labeling stratigraphic and structural features data in IGWS digital and paper archives, aids IGWS researchers in locating current geologic nomenclature for their publications, and provides web-based access to IGWS geologic nomenclature to a broad spectrum of users from academia, industry, government, and the general public.
Approach:
The GNC, with assistance from other IGWS staff, focused initial efforts on entering current Paleozoic stratigraphic nomenclature into the database and designing web-based access to these data. The database and website allow users to access information about specific units by searching on a formal stratigraphic name, abandoned name, or miscellaneous unofficial name such as “Indiana Limestone” (the Salem Limestone, Mississippian). Options to select units by specifying system(s) and stratigraphic rank(s) allow users to retrieve data for more than one stratigraphic unit and view the data in alphabetic or stratigraphic order. The website displays IGWS nomenclature for the selected unit(s), names of equivalent units, miscellaneous and abandoned names, and applicable higher-rank stratigraphic terms for each of the five Indiana areas delineated in the Midwestern Basins and Arches Region (COSUNA Project) to emphasize geographic changes in rank, lithic term, and assignment to higher-ranked units. Information related to structural features in Indiana is being added to the database.
Products:
The website is available at https://igws.indiana.edu/ignis. The IGWS GNC plans to continue development of the database and website to better serve users and maintain compatibility with the GEOLEX database developed by the U.S. Geological Survey. An interactive stratigraphic chart showing Paleozoic rock-unit names in Indiana will be updated at the website. The chart will link to each individual rock-unit web page and to the AAPG COSUNA regions 11-15. Project metadata, additional photographs and images relating to stratigraphic units, a section describing the economic importance of each stratigraphic unit, and a web-based search mechanism that will link Indiana stratigraphic units to correlative units will be compiled. Information relating to structural features in Indiana is also being added to the database.
Benefits:
The site provides web-based access to IGWS geologic nomenclature to a broad spectrum of users from academia, industry, government, and the general public.
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