Universidad Complutense de Madrid
E-Prints Complutense

Structural control of scarps in the Rembrandt region of Mercury

Impacto

Downloads

Downloads per month over past year



Ruiz Pérez, Javier and López, Valle and Dohm, James M. and Fernández, Carlos (2012) Structural control of scarps in the Rembrandt region of Mercury. Icarus (New York, N.Y. 1962), 219 (2). pp. 511-514. ISSN 0019-1035

[img]
Preview
PDF
317kB

Official URL: http://www.sciencedirect.com/science/article/pii/S0019103512001236



Abstract

Lobate scarps, thought to be the surface expression of large thrust faults, are the most spectacular contractional tectonic features visible on Mercury. Most lobate scarps follow a general and relatively simple pattern, with a roughly arcuate or linear form in plan view, and an asymmetric cross section characterized by a steeply rising scarp face and a gently declining back scarp. In this work, we study two peculiar and complex scarps in the Rembrandt region of Mercury through MESSENGER imagery. On the one hand, the formation of these scarps resulted in the deformation of features such as impact craters, fractures, extensional faults, and volcanic plains, while on the other hand, the deformed features partly influenced the formation of the scarps. Evidence for structural control on the formation of the scarps includes their orientation, segmentation, bifurcation, change in structural trend and dip orientation, and transition into high-relief ridges or wrinkle ridge morphologies in some cases. Thus, these two lobate scarps provide examples of complex geological relations among other features, expanding the recognized richness of mercurian geology. Also, the southern scarp records a complex history of contraction, suggesting that the development of some mercurian lobate scarps may be more complex than usually thought.


Item Type:Article
Uncontrolled Keywords:Mercury; Tectonics; Terrestrial planets
Subjects:Sciences > Geology > Geodynamics
ID Code:31127
Deposited On:03 Jul 2015 08:06
Last Modified:07 Jul 2015 11:54

Origin of downloads

Repository Staff Only: item control page