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Lunar linear rilles, models of dike emplacement and associated magnetization features
Authors:
Head, J. W.;
Wilson, L.;
Anderson, K. A.;
Lin, R. P.Affiliation:
AA(Brown Univ.), AB(Brown Univ., Providence, RI), AC(Lancaster, Univ.), AD(California, Univ., Berkeley)
Publication:
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 541.
Publication Date:
03/1997
Category:
Lunar and Planetary Exploration
Origin:
STINASA/STI Keywords:
LUNAR SURFACE, TECTONICS, LITHOSPHERE, MAGNETIZATION, VOLCANOES, MAGNETIC ANOMALIES
Bibliographic Code:
1997LPI....28..541H
Abstract
Lunar linear and arcuate rilles form from tectonic deformation associated with near-surface stress fields which have been attributed a variety of origins, including lithospheric flexure in response to mare basalt loads, and to the emplacement of dikes to near-surface environments. We have been assessing the nature of dike intrusion as a source of near-surface stress fields sufficient to produce linear rilles and conversely, developing criteria to distinguish rilles plausibly caused by near surface dike intrusion from those formed by other mechanisms. We have developed model predictions, photogeologic criteria, and have most recently been investigating the possibility of using measurements of magnetic fields by the electron reflection method to aid in the identification of candidate linear rilles formed by dike intrusions. We report on progress in the further assessment of data from these sources and on the identification of areas in which magnetization features appear to be associated with linear rilles.
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