How old are young lunar craters?
نویسندگان
چکیده
منابع مشابه
How Old Are Small Lunar Craters ? - a Depth-to-diameter Ratio Based Analyis
Introduction: In contrast to the larger craters (D > 10km) and basins which shaped the baseline morphology of the Moon, small lunar craters (SLC) continue to form and modify the local topography of the Moon. SLCs form on and around larger craters and basins, are the most populous impact features on the surface but also the least studied topographic data was available only for larger craters unt...
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country to the economic activity existing in developed countries. Incidentally, my planning office has just finished a feasibility study for an area in the Amazon Basin where 500 families may be settled in 14,400 hectares (1 hectare = 10,000 square meters), with a loan of $16,000 (United States dollars) per family extending over a 10-year period. After 10 years each family will have paid the lo...
متن کاملImplications of the Deepest Freshest Lunar Craters
Lunar Topographic Orthophoto maps (LTO) at 1:250 k scale have been used as a basis to measure the depth (dr and ds), diameter (D), and rim height (Hr) for 359 fresh Lunar craters in the diameter range of .08 – 131 km along the Apollo metric camera ground tracks. This study used LTO maps with high enough sun angle photography to permit deep crater depth measurements. This includes an area of ~ 3...
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Configuration of locomotion for planetary rovers is motivated by increased interest in exploring lunar polar craters. Current rover designs cannot achieve the ascent or descent required by steep, unconsolidated lunar slopes. New designs must provide locomotive capability for steep climbing, techniques for controlling slip, and safely navigating down and along steep slopes. We propose a locomoti...
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One in every six U.S. birth certificates have no information on the age of the baby's father; for more than four in 10 babies born to adolescent women, no data are available on the father's age. Information from mothers aged 15-49 who had babies in 1988 and were surveyed in the National Maternal and Infant Health Survey indicates that fathers for whom age is not reported on the birth certificat...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Planets
سال: 2012
ISSN: 0148-0227
DOI: 10.1029/2011je003935