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A Lithostratigraphic Analysis of the Meteor Crater Ejecta Blanket: Measurements, Assigned Units, and Unit Thickness

Metadata Updated: July 6, 2024

Current models do not sufficiently explain target rock-projectile mixing and ejecta blanket formation for small impact craters (i.e., <2km diameter). For example, due to the size of Meteor Crater and the low-velocity at which materials were excavated from the transient crater, the extent of target rock-projectile mixing is expected to be minor. However, based on drilling notes from Dr. David Roddy and preliminary work done at the USGS, we found lithologic mixing is much more prevalent throughout the ejecta blanket. We have used the USGS Meteor Crater sample collection to investigate the internal stratigraphy and spatial distribution of impact-generated materials in the ejecta blanket to better understand cratering processes involving votatile-rich sedimentary target rocks. Data presented here are the measurements and summarized results from our lithostratigraphic analysis of the continuous ejecta blanket at Meteor Crater. 'Lithostratigraphic_analysis_measurements' file includes all of our mass and volume measurements for each sample, and 'Lithostratigraphic_analysis_summary' file is our summarized results, which includes an assigned unit for each sample based on the contrasting mixtures of target rocks (from our measurements), and the overall thickness of each identified unit across the selected transects. These data are the supplementary materials associated with a manuscript that will soon be published in a peer-review journal.

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
@Id http://datainventory.doi.gov/id/dataset/90c8182cc2f1eae10a4ced7dd877c282
Identifier USGS:6369724bd34ed907bf6a18ee
Data Last Modified 20221107
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 631bbbd8-e36e-4bba-9945-0d5dc6f7384c
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -111.0498,35.00469,-110.99693,35.04742
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash dd49c23062187305f19b4a0938513198524f3ab5d9269da4580f27ceb0a108e1
Source Schema Version 1.1
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