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Book Chapter

Faulted craters as indicators for thrust motions on Mercury

By
Valentina Galluzzi
Valentina Galluzzi
1
DiSTAR, Università degli Studi di Napoli ‘Federico II’, Naples, Italy
2
Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli ‘Parthenope’, Naples, Italy
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Gaetano Di Achille
Gaetano Di Achille
3
INAF – Osservatorio Astronomico di Capodimonte, Naples, Italy
4
Present address: INAF – Osservatorio Astronomico di Collurania, Teramo, Italy
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Luigi Ferranti
Luigi Ferranti
1
DiSTAR, Università degli Studi di Napoli ‘Federico II’, Naples, Italy
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Ciprian Popa
Ciprian Popa
3
INAF – Osservatorio Astronomico di Capodimonte, Naples, Italy
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Pasquale Palumbo
Pasquale Palumbo
2
Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli ‘Parthenope’, Naples, Italy
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Published:
January 01, 2015

Abstract

Craters cross-cut by faults are used as markers to obtain fault geometric and kinematic properties. Assuming that the shape of these craters was originally circular, it is possible to measure the horizontal and vertical components of fault displacement as well as the slip trend. By applying trigonometric relations, slip plunge, displacement magnitude, fault true dip and fault rake can be derived from the observed values. An example application of this method on craters faulted by lobate scarps on Mercury shows that most of these inferred reverse faults have moderate oblique-slip trends. Moreover, the derived dips of thrusts vary over a wide range of angles. Some preliminary results in terms of fault rake compared with fault dip, strike and latitude are presented together with a pilot study to test and discriminate global tectonic models suggested for the evolution of Mercury. The possibility of estimating quantitative fault parameters through remotely sensed data provides significant assistance in the structural characterization of faults on planetary surfaces.

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Geological Society, London, Special Publications

Volcanism and Tectonism Across the Inner Solar System

T. Platz
T. Platz
Planetary Science Institute, USA
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M. Massironi
M. Massironi
Università degli Studi di Padova, Italy
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P. K. Byrne
P. K. Byrne
Lunar and Planetary Institute, USA
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H. Hiesinger
H. Hiesinger
Westfälische Wilhelms-Universitä Münster, Germany
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Geological Society of London
Volume
401
ISBN electronic:
9781862396777
Publication date:
January 01, 2015

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