Geology of the Victoria quadrangle (H02), Mercury

Galluzzi, V.; Guzzetta, L.; Ferranti, Luigi; Achille, G. Di; Rothery, David A.; Palumbo, P.

doi:10.1080/17445647.2016.1193777

Cited by 32 publications

(51 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Canova 25‐km sized crater (UC1, Figure ) is located at 25.62°N, 3.75°W in a densely cratered intercrater plains area of the Victoria quadrangle (Galluzzi et al, ) in the vicinity of two other craters with prominent hollows: de Graft (Blewett et al, , ) and Kyosai. It is emplaced on top of the northern rim of a larger crater with a diameter of 90 km (UC2).…”

Section: Data Set and Methodsmentioning

confidence: 99%

“…Velazquez was classified as a protobasin by Baker et al () due to the presence of both a peak ring and a central peak. It presents rather symmetrical ejecta with a pool of ejected impact melt to the northwest (Galluzzi et al, ); however, hollows are concentrated just on the central part of the floor, as shown by the geologic map close up in Figure . A total of 52 useful NAC images were found to cover this area with a resolution ranging from 16 to 27 m/pixel.…”

Section: Data Set and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Mercury Hollows as Remnants of Original Bedrock Materials and Devolatilization Processes: A Spectral Clustering and Geomorphological Analysis

et al. 2018

Self Cite

View full text Add to dashboard Cite

We perform a detailed geomorphological and compositional analysis on three craters hosting hollows located in the Victoria and Kuiper Quadrangles of Mercury. Based on Mercury Dual Imaging System data, high‐resolution detailed geomorphological mapping is provided in order to fully characterize the geological framework where hollows formed. In addition, we apply an unsupervised spectral clustering, based on a K‐mean algorithm, to separate in clusters our data sets. The comparison between the spectral and the well‐defined geomorphological units reveals a spatially coherent distribution. In particular, all hollows are uniquely identified by a well‐defined spectrum showing a wide absorption band between 0.558 and 0.828, with a possible hint of absorption toward 1 μm. Our analysis suggests that the composition of hollows may be characterized by a mixture of different minerals contributing to the absorptions found in our spectra. Indeed, sulfides alone (CaS, MnS, and MgS) cannot explain the spectrum behavior of hollows, even if the mechanism forming hollows likely involves the loss of volatiles from the surface. Hence, we have to consider bedrock‐forming material as partial responsible of the absorptions. For the studied hollows we suggest that the bedrock‐forming minerals are pyroxenes presenting transitional elements, like Cr, Ti, and Ni in substitution of Mg and/or Fe. Therefore, we suggest that the spectral characteristics of hollows are related to both remnant material produced by devolatilization process and to bedrock in which the hollows formed.

show abstract

Section: Data Set and Methodsmentioning

confidence: 99%

Section: Data Set and Methodsmentioning

confidence: 99%

Mercury Hollows as Remnants of Original Bedrock Materials and Devolatilization Processes: A Spectral Clustering and Geomorphological Analysis

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…As inFigure 3but superposed onto a composite of recently reconstructed geologic maps of Mercury(Galluzzi et al, 2018). (a) The same region as inFigure 3using individual maps byGalluzzi et al (2016) andWright et al (2018a); (b) the Caloris side mapped magnetically by H16 using geologic maps byMancinelli et al (2016) andGuzzetta et al (2017). The contour interval in both maps is 2 nT.…”

mentioning

confidence: 99%

Investigating Sources of Mercury's Crustal Magnetic Field: Further Mapping of MESSENGER Magnetometer Data

et al. 2018

Self Cite

View full text Add to dashboard Cite

One hundred six low‐altitude passes of magnetometer data from the last 2 months of the MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission have been applied to produce a map of the crustal magnetic field at a constant altitude of 40 km covering latitudes of 35–75∘ N and longitudes of 270–90∘ E. Some anomalies correlate significantly with impact basins/craters (e.g., Rustaveli and Vyasa), while other basins/craters have no obvious anomalies. A possible interpretation that is consistent with lunar evidence is that some impactors delivered more ferromagnetic Fe–Ni metal to the interior subsurfaces and ejecta fields of the craters/basins that they produced. The amount of metallic iron that could plausibly be delivered is limited by the diameter and mass of an impactor that would yield a crater with observed diameters (e.g., 200 km for Rustaveli). This in turn limits the maximum amplitude of anomalies that could be induced by impactor‐added iron in the present‐day Mercury global field to relatively low values. It is therefore concluded that if impactor‐added iron is the source of the observed crater‐associated anomalies, then they must be almost entirely a consequence of ancient remanent magnetization. A broad magnetic anomaly occurs over the northern rise, a topographically high region with an associated strong free air gravity anomaly. A possible interpretation of the latter anomaly is that an early major impact preconditioned the region for a later mantle uplift event.

show abstract

“…In this study, we use MErcury Surface, Space Environment, Geochemistry and Ranging (MESSENGER) mission (Solomon et al, ) data and the 1:3 M‐scale geologic map of the Victoria quadrangle (H‐2; Galluzzi et al, ) to analyze the structure and kinematics of the area encompassing CR, VR, ER, and AD and their relationship with the HMR. The detailed fault and timing analysis presented in this paper allowed us to correlate fault geometry and kinematics to Mercury's crustal properties.…”

Section: Introductionmentioning

confidence: 99%

Structural Analysis of the Victoria Quadrangle Fault Systems on Mercury: Timing, Geometries, Kinematics, and Relationship with the High‐Mg Region

et al. 2019

Self Cite

View full text Add to dashboard Cite

Three nonparallel fault systems occur in the Victoria quadrangle of Mercury. The most prominent system (Victoria system) includes the NNW‐SSE trending Victoria Rupes‐Endeavour Rupes‐Antoniadi Dorsum (VEA) array, one of the major fault alignments on the planet, and shorter parallel fault arrays. West and northwest of the Victoria system, two additional fault systems with NE‐SW (Larrocha system) and NW‐SE (Carnegie system) trends, are found. The timing analysis reveals that the three systems are coeval and were active until ~3.7 Ga. Measures of rim offset within faulted craters on the VEA array and on Carnegie Rupes segment of the Carnegie system were used to derive the kinematics of faults and to perform a finite stress inversion, which provides an ENE‐WSW trending regional shortening axis. Results of the stress inversion and age relationships, together with geometrical and morpho‐structural observations, suggest that the NE‐SW and NW‐SE systems acted as right‐transcurrent and left‐transpressional, respectively, at the time when the computed strain field was active. The distribution of the three systems spatially coincides with the boundaries of the high‐Mg region and of other regional geochemical terranes. Lateral geomechanical variation of the crust combined with tidal despinning and global contraction processes drove the localization and slip pattern of faults in a kinematically consistent displacement field. Moreover, crustal heterogeneities controlled the lateral changes in density and spacing of fault segments along the VEA. Following the demise of faulting, the established lateral variation of geometry along the VEA favored the growth of volcanic vents at high‐permeability segment boundaries.

show abstract

Geology of the Victoria quadrangle (H02), Mercury

Cited by 32 publications

References 37 publications

Mercury Hollows as Remnants of Original Bedrock Materials and Devolatilization Processes: A Spectral Clustering and Geomorphological Analysis

Mercury Hollows as Remnants of Original Bedrock Materials and Devolatilization Processes: A Spectral Clustering and Geomorphological Analysis

Investigating Sources of Mercury's Crustal Magnetic Field: Further Mapping of MESSENGER Magnetometer Data

Structural Analysis of the Victoria Quadrangle Fault Systems on Mercury: Timing, Geometries, Kinematics, and Relationship with the High‐Mg Region

Contact Info

Product

Resources

About