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Lunar Igneous Activity and Differentiation

Published online by Cambridge University Press:  30 March 2016

G. Fielder
G. Fielder*
Affiliation:
University of Lancaster

Extract

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One of the most significant advances in our understanding of the Moon has been the discovery, through the Surveyor, Orbiter and Apollo programmes, of widespread lunar igneous activity and differentiation.

Volcanic flows (Figure 1) in, and in the neighbourhood of, Tycho are up to 20 km long and up to 12 km wide. At least 5 flows, mapped by Strom and Fielder (1970) originated in, and breached, craters up to 100 km from the rim of Tycho. One flow (Figure 2) is essentially the same age as the ropy floor material of Tycho, since it is traversed by cracks that are indicative of marginal stretching of the floor unit. Other flows are found in what are probably lava lakes (Figure 3), and two flows derive from such lakes.

Type
II. Special Meeting on Direct Exploration of the Moon
Information
Highlights of Astronomy , Volume 2: Highlights of Astronomy. As presented at the XIVth General Assembly of the IAU, 1970 , 1971 , pp. 142 - 154
Copyright
Copyright © Reidel 1971

References

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