Published June 4, 2024 | Version v3
Dataset Open

Mercury's Impact structure inventory

Authors/Creators

  • 1. ROR icon Technische Universität Berlin
  • 2. ROR icon Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)

Description

This data set display an inventory of impact structures larger than 100 km on Mercury. The gravity measurements were determined using a amore precise approach of calculating the avearge of multiple profiles along the impact structure.

Variables:

  1. ID: Identification number or the name of the impact structure.
  2. Diam (km): The diameter of the impact structure in kilometers.
  3. Lon: Central longitude.
  4. Lat: Central latitude.
  5. Id_source: Primarly identification source ( Gravity data / DTM/ Mosaic model).
  6. Certainity: Grade of certainity ( Certain, probable or tentative).
  7. Class : Geomorphological classification (complex, central peak basins, peak ring basin, multi ring basins, modified basin).
  8. Terraces: Presence of terraces. 
  9. Rim: Rim preservation state.
  10. Depth [km]: Depth measurements in km.
  11. D/d:  Depth to diameter ratio.
  12. Filling: Presence of volcanis infill.
  13. Smooth plains: Filling classified as part of the smooth plains.
  14. Bouguer_center: Measured Bouguer anomaly (mGal) of LOS gravity model (Goossens et al., 2022) associated with the center of the impact structure.
  15. Bouguer_outer: Measured Bouguer anomaly (mGal) of LOS gravity model (Goossens et al., 2022) associated with the outer area of the impact structure.
  16. Bouguer_rimcrest: Measured Bouguer anomaly (mGal) of LOS gravity model (Goossens et al., 2022) associated with the rim area of the impact structure. 
  17. Bouguer_contrast: Bouguer anomaly contrast (mGal).
  18. Stdev_center: Standard deviation of the Bouguer anomaly in the center.
  19. Stdev_outer: Standard deviation of the Bouguer anomaly in the outer area.
  20. Stdev_rimcrest: Standard deviation of the Bouguer anomaly at the rimcrest.
  21. CC: Crater counts of N(20).
  22. Area: The area of the basin in km².
  23. N(20)/Area: Value that refelcts the relative age of impact structures.
  24. CT_center:  Measured crustal thickness (km) associated with the center of the impact structure.
  25. CT_outer:  Measured crustal thickness (km) associated with the outer area of the impact structure.
  26. CT_rim: Measured crustal thickness (km) associated with the rim area of the impact structure.
  27. Temperature [K]: Crustal temperature of impact structures at 39.4km depth at 3.0 Ga.

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