Deformation patterns of icy satellite crusts: Insights for tectonic balancing and fluid migration through structural analysis of terrestrial analogues

Rossi, Costanza; Cianfarra, Paola; Lucchetti, Alice; Pozzobon, Riccardo; Penasa, Luca; Munaretto, Giovanni; Pajola, M.

doi:10.1016/j.icarus.2023.115668

Cited by 1 publication

(1 citation statement)

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“…Regionally sized lineaments (with lengths of the order of hundreds to thousands of kilometers) detected on synthetic scaled images of deformed regions record the signature of tectonic deformations, thus providing a useful tool to highlight their geotectonic evolution. Azimuthal and spatial analyses of lineaments provides fundamental insights to applied studies, such as the characterization of hydrothermal fluid circulation [15,16] and groundwater fractured reservoirs [17][18][19], assessment of hydrocarbon potential in oil fields [20,21], characterization of areas with high landslide susceptibility [22,23], and investigation of the structural settings of seismically and volcanically active regions [24][25][26], as well as to unravel the tectonic evolution of different planetary surfaces [13,[27][28][29][30][31][32][33][34]. During the last decades, quoting [35], "definitions and theories on the origin of lineaments have been almost as numerous as the lines themselves" (see also [36] for a review on the various definitions of lineaments since [37]).…”

Section: Introductionmentioning

confidence: 99%

Lineament Domain Analysis to Unravel Tectonic Settings on Planetary Surfaces: Insights from the Claritas Fossae (Mars)

Balbi,

Marini

2024

Geosciences

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Linear geo-textures are widely recognized on synthetic scaled images of planetary surfaces and consist of elongated alignments of tonal contrasts. When these linear patterns are clustered in azimuthal sets and organized in domains occurring on specific terranes, they reflect the structural grain of the crust and provide clues on the stress trajectories. In this way, the geostatistical analysis of lineament domains represents a useful tool to highlight the geotectonic settings of planetary surfaces. In this work, we applied a lineament domain analysis to better frame the tectonic evolution of the Claritas Fossae (CF) area on Mars, the origin of which is still debated, and both dip–slip and strike–slip tectonics have been described in the literature. A twofold approach was followed that included the identification of a linear pattern with manual and automatic approaches. The automatic method confirmed and validated the results of the manual detection. The statistical analysis of the identified lineaments showed their clustering in two domains that persisted on different terranes separated by the regionally sized scarp associated with the CF. This scarp is the surface manifestation of the CF crustal fault. The spatial distribution of the two domains and their constant angular relationship of about 30° allowed relating one domain to the main CF fault and the other domain to the extensional deformation associated with the fault kinematics. Our results suggest that the CF frames well within a regional setting characterized by right–lateral kinematics with about 20% transtension. Temporal constraints derive from the ages of the terrains where the two domains develop. On this basis, we propose that a first tectonic event occurred in the Noachian age followed by a reactivation occurring after the emplacement of the Late Hesperian lavas.

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