Fracture geometry and statistics of Ceres’ floor fractures

Krohn, Katrin; Gathen, Isabel von der; Buczkowski, D. L.; Jaumann, R.; Wickhusen, Kai; Schulzeck, Franziska; Stephan, K.; Wagner, Roland; Scully, J. E. C.; Raymond, C. A.; Russell, C. T.

doi:10.1016/j.pss.2020.104955

Cited by 5 publications

(16 citation statements)

References 53 publications

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“…The floor-fractures are similar with floor-fractured craters (FFC) of Class 1 and 4 on the Moon (e.g., [43][44][45]). Depth to diameter ratios show that FFCs on Ceres are anomalously shallow similar to lunar FFCs [43].…”

Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 82%

“…A common fracture structure are crevices merging into various branches or narrow fissures that conjoint into straight wide fractures. These fractures bifurcate into grand fracture groups or networks which can cover nearly half of the crater floor, this is observed at Dantu and Occator crater [44] (Figure 4A and B). A special type of floor fractures is found within Yalode crater (Figure 4C, C1).…”

Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 87%

“…Several impact craters on Ceres contains sets of fractures on their floors. Typical cerean FFCs reveal an irregular shaped rim, which is mostly deformed by slumping or sliding of the crater rim building wall terraces, and/or a central pit or peak structure [43,44]. The morphology of most fractures is characterized by an irregular pattern with concentric and/or radial or polygonal shape, other fractures are almost…”

Section: Floor-fractured Craters On Ceresmentioning

confidence: 99%

“…Special Crater Types on Vesta and Ceres as Revealed by Dawn DOI: http://dx.doi.org/10.5772/intechopen.96671 straight and subparallel to parallel [44]. A common fracture structure are crevices merging into various branches or narrow fissures that conjoint into straight wide fractures.…”

Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 99%

“…They show high variation in shape, width and lengths and encompass deformational features such as en echelon structures and possible strike slip faults, dilatational jogs or tilted blocks. Such morphologic variations suggest different formation mechanism [44].…”

Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 99%

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Special Crater Types on Vesta and Ceres as Revealed by Dawn

Krohn¹

2021

Solar System Planets and Exoplanets

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The exploration of two small planetary bodies by the Dawn mission revealed multifaced surfaces showing a diverse geology and surface features. Impact crater are the most distinctive features on these planetary bodies. The surfaces of asteroid Vesta and the dwarf planet Ceres reveal craters with an individual appearance as caused by different formation processes. Special topographic and subsurface conditions on both bodies have led to the development of special crater types. This chapter present the three most characteristic crater forms fund on both bodies. Asymmetric craters are found on both bodies, whereas ring-mold craters and floor-fractured craters are only visible on Ceres.

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Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 82%

Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 87%

Section: Floor-fractured Craters On Ceresmentioning

confidence: 99%

Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 99%

Section: Ring-mold Craters On Ceres (A) Shows a Central Pit/bowl Crater (B) Shows A Central Plateau (Bottom) And A Central Mound Crater (mentioning

confidence: 99%

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Special Crater Types on Vesta and Ceres as Revealed by Dawn

Krohn¹

2021

Solar System Planets and Exoplanets

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The Psyche Topography and Geomorphology Investigation

et al. 2022

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Detailed mapping of topography is crucial for the understanding of processes shaping the surfaces of planetary bodies. In particular, stereoscopic imagery makes a major contribution to topographic mapping and especially supports the geologic characterization of planetary surfaces. Image data provide the basis for extensive studies of the surface structure and morphology on local, regional and global scales using photogeologic information from images, the topographic information from stereo-derived digital terrain models and co-registered spectral terrain information from color images. The objective of the Psyche topography and geomorphology investigation is to derive the detailed shape of (16) Psyche to generate orthorectified image mosaics, which are needed to study the asteroids’ landforms, interior structure, and the processes that have modified the surface over geologic time. In this paper we describe our approaches for producing shape models, and our plans for acquiring requested image data to quantify the expected accuracy of the results. Multi-angle images obtained by Psyche’s camera will be used to create topographic models with about 15 m/pixel horizontal resolution and better than 10 m height accuracy on a global scale. This is slightly better as global imaging obtained during the Dawn mission, however, both missions yield resolutions of a few m/pixel locally. Two different techniques, stereophotogrammetry and stereophotoclinometry, are used to model the shape; these models will be merged with the gravity fields obtained by the Psyche spacecraft to produce geodetically controlled topographic models. The resulting digital topography models, together with the gravity data, will reveal the tectonic, volcanic, impact, and gradational history of Psyche, and enable co-registration of data sets to determine Psyche’s geologic history.

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