The scarcity of mappable flow lobes on the lunar maria - Unique morphology of the Imbrium flowsUnique features of Imbrium lava flows are their thickness (10-30 + m) and lengths (up to 400 km for phase-III, and up to 600 km for phase-II) when compared along later Imbrium and Eratosthenian units. They are distinct by virtue of their inferred short-lived (on the order of days) and extremely rapid rates of effusion. It is shown that there are numerous other basalt eruptives within the young blue western maria. The emplacement of these flows was by complex multilayering and intertonguing of individual flow units with thicknesses less than 10 m. They are generally restricted to the near vicinity of multiple vent sources.
Document ID
19770051956
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Schaber, G. G. (Geological Survey Flagstaff, AZ, United States)
Boyce, J. M. (U.S. Geological Survey, Branch of Astrogeologic Studies, Flagstaff Ariz., United States)
Moore, H. J. (U.S. Geological Survey, Branch of Astrogeologic Studies, Menlo Park Calif., United States)