Format of the Expert Database on Earth Impact Structure
List of Notations (in brackets the format and the minimum and maximum database values of each parameter are shown).
Database contains 1217 structures. Last update: 22.02.2023
Country - Country or region, where event occured
Name - Structure name (synonym)
lat - Latitude of the structure ('-' for southern latitude) [-90.00,90.00]
long - Longitude of the structure ('-' for western longitude) [-180.00, 180.00]
age - Age [0.0000001, 3400.0] (Ma)
dia - Diameter [0.0,2250.0] (km)
V - Validity of the impact origin of the structure
- 5 - meteorite impact confirmed
- 4 - proven (all four types of criteria are confirmed)
- 3 - probable (any three of four confirmed)
- 2 - possible (any two of four confirmed)
- 1 - doubtful (based mostly on crater morphology)
- 0 - discredited
Type - Type of the bottom structure
- R - Ring
- C - Complicated
- CR - Complicated with central raise
- S - Simple bowl-shaped form
D - Depth of depression [0.5,30000.0] (m)
N - Number of structures in the crater field
Erosion - Erosion parameter [1,7]
Appearance - Appearance on the Earth surface
- arc, astrobleme, basin, bay, caldera, cavity, circus, crater, depression, dome, flat depression, geo. per., gulf, hill, hollow, lake, mountain, pit, plateau, structure, valley.
Space view - View from space
- Y, N, excellent, good, average, bad, invisible.
Rocks - Target rocks
- mix - mixed target
- sed - sedimentary target
- cry - crystalline target
- vol - volcanic target
- cry-mix - crystalline and mixed target