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Microfossil, grain size, and petrographic data for the Cabin Branch and Cabin Creek (Cappy Avenue) outcrops, Prince George's County, Maryland

Metadata Updated: July 6, 2024

The Cabin Branch and Cabin Creek (Cappy Avenue) outcrops are located along two small creeks in Prince George’s County, Maryland. The Cabin Branch outcrop contains exposures of silty sands of the Upper Cretaceous Severn Formation, and both outcrops contain Paleocene silty quartz and glauconitic sands of the Danian Brightseat Formation and highly fossiliferous glauconitic quartz sands of the Selandian Aquia Formation. Data from these two locations were generated in order to designate a Principal Reference Section for the Danian age Brightseat Formation. The Cabin Branch outcrop consists of disjunct exposures along an approximately 0.4-mile section of the creek. At the nearby Cabin Creek (Cappy Avenue) outcrop a more complete Brightseat/Aquia contact is exposed. Data generated from these two outcrops include a complete suite of sand/silt/clay percent abundances from each sample of each formation. Additionally, data for the sand-size fraction from each formation were further broken down into percent abundance of very fine, fine, medium, and coarse components. Petrographic data for the indurated beds at the Cabin Branch outcrop are also included. Calcareous nannofossil data from the two outcrops are presented in three occurrence charts: one for the Late Cretaceous and one for the Paleocene at Cabin Branch, and one for the Brightseat-Aquia contact interval at Cabin Creek (Cappy Avenue). Calcareous nannofossil data were used to determine the ages and zonation of each formation, and species richness, a measure used to detail community stability, is also provided. In addition to calcareous nannofossil biostratigraphy, samples were processed for other calcareous microfossils: planktic and benthic foraminifera and ostracods. A table for each outcrop presents the number of planktic and benthic foraminifera per 300 specimens, along with the total number of ostracods present per sample. An occurrence chart of ostracod species is provided for both outcrops.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
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Identifier USGS:6342d2a3d34e342aee085bc0
Data Last Modified 20230601
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 6bccdd1e-dd15-4b0a-8c66-b13516528118
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -76.899533,38.872058,-76.884212,38.880811
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 03ebbb50963038493ca27d73634326f758e8b2f08539d94fb8c64fcc560449b2
Source Schema Version 1.1
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