Geologic map of the Grimaldi quadrangle of the Moon
Dates
Publication Date
1973-01-01
Time Period
1973-01-01
Citation
J. F. McCauley, 19730101, Geologic map of the Grimaldi quadrangle of the Moon: , https://doi.org/10.5066/P9230DC4.
Summary
The Grimaldi quadrangle lies at the southwest margin of Oceanus Procellarum about 1000 km east of Orientale, the youngest of the lunar multi-ring basins. The distal ends of the ejecta blanket surrounding the Orientale basin partly cover the western third of the quadrangle. The relatively small, two-ring Grimaldi basin is in the northwest corner of the quadrangle, and the Humorum basin lies about 750 km to the southeast. A vestigal multi-ring basin mostly engulfed by mare appears to control the distribution of terra and mare craters Hansteen and Billy are on a northwest-trending topographic high which represents part of the ring system of this basin. Terra materials of distinctive texture, apparently unrelated to multi-ring basins and [...]
Summary
The Grimaldi quadrangle lies at the southwest margin of Oceanus Procellarum about 1000 km east of Orientale, the youngest of the lunar multi-ring basins. The distal ends of the ejecta blanket surrounding the Orientale basin partly cover the western third of the quadrangle. The relatively small, two-ring Grimaldi basin is in the northwest corner of the quadrangle, and the Humorum basin lies about 750 km to the southeast. A vestigal multi-ring basin mostly engulfed by mare appears to control the distribution of terra and mare craters Hansteen and Billy are on a northwest-trending topographic high which represents part of the ring system of this basin. Terra materials of distinctive texture, apparently unrelated to multi-ring basins and probably of volcanic origin, occupy the central parts of the quadrangle.
Digitized 1:1,000,000-scale geologic map of the LAC-74 Grimaldi region of the Moon. Originally mapped on Lunar Base Chart USAF-ACIC imagery. The scanned map sheet was imported into ArcMap and georeferenced to the more current 2013 global WAC mosaic basemap. Contacts and geologic units were digitized and attributed based on type and unit name.
