Stratigraphy of the Caloris basin, Mercury
Abstract
The 1300-km-diameter Caloris impact basin is surrounded by well-defined ejecta units that can be recognized from more than 1000 km, radially outward from the basin edge. A formal rock stratigraphic nomenclature is proposed for the Caloris ejecta units, which are collectively called the Caloris Group. Each of the individual formations within the Group are described and compared to similar rock units associated with the lunar Imbrium and Orientale basins. A crater degradation chronology, linked the the Caloris event, is also proposed to assist in stratigraphic correlation on a Mercury-wide basis.
- Publication:
-
Icarus
- Pub Date:
- August 1981
- DOI:
- 10.1016/0019-1035(81)90166-4
- Bibcode:
- 1981Icar...47..184M
- Keywords:
-
- Impact Damage;
- Mercury (Planet);
- Meteorite Craters;
- Stratigraphy;
- Structural Basins;
- Structural Properties (Geology);
- Ejecta;
- Mariner 10 Space Probe;
- Meteoritic Damage;
- Planetology;
- Spaceborne Photography;
- FEATURES;
- NERVO FORMATION;
- ODIN FORMATION;
- ROOK FORMATION;
- MORPHOLOGY;
- CALORIS MONTES FORMATION;
- GRAVITY EFFECTS;
- MOUNTAINS;
- IMPACTS;
- CALORIS BASIN;
- STRATIGRAPHY;
- IMHOTEP;
- EJECTA;
- NOMENCLATURE;
- CHRONOLOGY;
- GEOLOGIC FORMATIONS;
- COMPARISONS;
- MOON;
- ORIENTALE BASIN;
- BASINS;
- MERCURY;
- PHOTOGRAPHS;
- IMBRIUM BASIN;
- DEGRADATION;
- VAN EYCK FORMATION;
- VERDE;
- SEI;
- SECONDARY CRATERS;
- KRUIPER;
- STRINDBERG;
- AMRU AL-QAYS;
- DOSTOESVSKIJ