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Origin of the Lunar Craters and Maria
Nature, 1959RECENT observations by Kozyrev (private communication) of transient emission bands of the carbon molecule in the spectrum of the central peak of the lunar crater Alphonsus have strikingly re-opened the age-old problem of the origin of these most characteristic landmarks of the lunar surface; and the dilemma between the volcanic and impact phenomena ...
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Lunar ring structures and the nature of the maria
Planetary and Space Science, 1968Abstract Data from Lunar Orbiter and Surveyor probes are used in an examination of specific, low walled lunar rings to show that they are recent volcanic structures. The alternative hypothesis that these ‘elementary’ rings represent old, partially buried craters is challenged. Their observed distribution and the mechanism of formation deduced for
J.E. Guest, G. Fielder
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The Missing Craters and Basin Rings Beneath the Lunar Maria
Journal of Geophysical Research: Planets, 2023AbstractEvidence for a population of craters buried beneath the nearside lunar maria has been found in the gravity data returned from the Gravity Recovery and Interior Laboratory mission. Although the total population of buried and visible craters within maria is comparable to the crater population in non‐mare regions at large diameters, a deficit was ...
Weigang Liang +2 more
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Galileo imaging observations of lunar maria and related deposits
Journal of Geophysical Research: Planets, 1993The Galileo spacecraft imaged parts of the western limb and far side of the Moon in December 1990. Ratios of 0.41/0.56 μm filter images from the Solid State Imaging (SSI) experiment provided information on the titanium content of mare deposits; ratios of the 0.76/0.99 μm images indicated 1 μm absorptions associated with Fe2+ in mafic minerals.
Greeley, R. +12 more
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Volcanic features of the nearside equatorial lunar maria
Journal of the Geological Society, 1976A map is presented of the distribution of volcanic features in the lunar maria between longitudes 50°E. and 100°W, and latitudes 50°N. and S. Flood basaltic flows predominate, and where individual flow units can be identified they may be hundreds of kilometres long.
J. E. GUEST, J.B. MURRAY
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The ages of the lunar maria and the filling of the mare basins
Physics of the Earth and Planetary Interiors, 1977Abstract The age discrepancy between lunar highlands and mare is examined in terms of a hydrostatic head model incorporating an impact crater being fed continuously from depth with basaltic magma. It is shown that if the age difference is attributed to the filling time of the impact basin, the dimensions of the volcanic feeder conduits are of the ...
Davies, P.A., Stephenson, A.
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Mensuration and Isostasy of Lunar Mascons and Maria
Nature, 1969The theory that mascons have been formed by the partial filling of impact craters now leads to the conclusion that they are isostatically in equilibrium with the rocks beneath.
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Modelling of temperatures of selected points in lunar maria
The Moon and the Planets, 1980The purpose of this paper is to propose a numerical model representing the brightness temperature of ten selected sites of the Moon as measured in CERGA. A theoretical approach is proposed in which the temperature is expressed as a function of the local zenith distance of the Sun and a quantity depending upon the local zenith distance of the observer ...
J. Gay +4 more
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Evidence for isostasy in the lunar mascon Maria
The Moon, 1976The pronounced positive gravity anomalies in the lunar circular maria imply lack of isostatic compensation of the lunar mascons. This lack of isostasy is hard to reconcile with the rheological properties of the lunar crust. Analysis of the negative ring anomalies that appear to surround the major positive gravity peaks indicates that associated with ...
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40Ar39Ar ages from the lunar maria
Earth and Planetary Science Letters, 1971Neutron activation and stepwise heating experiments have been used to measure argon retention ages of crystalline rocks 12002, 12051 and 12065 from Oceanus Procellarum. The effects of appreciable argon loss are observed for all rocks. Ages based on the release of argon from retentive sites are, within the errors of measurement, identical and are ...
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