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View article: Spectral Study of Five Major Impact Basins and Their Volcanic Infills on Mercury: A Window Into the Mantle's Properties
Spectral Study of Five Major Impact Basins and Their Volcanic Infills on Mercury: A Window Into the Mantle's Properties Open
NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission has revealed that about 27% of the surface of Mercury is covered by smooth plains, which are mostly volcanic in origin. These plains are mainly located in the nor…
View article: Geology of the Bach quadrangle (H15), Mercury
Geology of the Bach quadrangle (H15), Mercury Open
Mercury's Bach quadrangle (H15) is the area poleward of 65°S. We mapped this geologically using remote sensing-based observations of surface morphology revealed on MESSENGER data products. This map contributes to a series of quadrangle map…
View article: Lobate Forms Around Craters on the Moon and Mercury: Origin From Landslides, Ejecta Flows and Modification Stage Collapse
Lobate Forms Around Craters on the Moon and Mercury: Origin From Landslides, Ejecta Flows and Modification Stage Collapse Open
Lobate forms emanate from impact craters and have morphologies indicating ground‐hugging emplacement via flow. We present global surveys of lobate forms on the Moon and Mercury. Very few examples have previously been reported on either bod…
View article: Amazonian syn-glacial tectonism in Bosporus Planum, Mars, evidenced by a tectonic fault cross-cutting a crater-filling glacier.
Amazonian syn-glacial tectonism in Bosporus Planum, Mars, evidenced by a tectonic fault cross-cutting a crater-filling glacier. Open
IntroductionThe surface of Mars records a complex history of tectonic deformation evidenced by tectonic faults including extensional grabens and compressional faults termed ‘wrinkle ridges’. The majority are thought to have formed in Mars’…
View article: Fractional Crystallization Scenario for Magma Evolution on Mercury Inferred From Geochemical Variation Around the Caloris Basin
Fractional Crystallization Scenario for Magma Evolution on Mercury Inferred From Geochemical Variation Around the Caloris Basin Open
The observed geochemical heterogeneity on the surface of Mercury is key to understanding the planet's volcanic activity and mantle conditions. The Caloris basin shows a diversity in elemental composition, spectral properties, and geomorpho…
View article: The Timing and Origin of Lobate Ejecta Forms at Craters in Mercury's South Polar Region
The Timing and Origin of Lobate Ejecta Forms at Craters in Mercury's South Polar Region Open
We present six newly identified examples of lobate ejecta in Mercury's south polar quadrangle (H15), providing the first evidence of syn‐impact formation through our observation of perched impact melt at Nairne and Magritte craters. This f…
View article: Shape and Albedo from Shading with Planetary Flyby Images of Mercury and the Moon
Shape and Albedo from Shading with Planetary Flyby Images of Mercury and the Moon Open
IntroductionSurface reconstruction of planetary bodies such as the Moon and Mercury is crucial for geomorphological analysis, reflectance normalization, thermal modeling, rover landing site planning, and outreach activities. Stereo algorit…
View article: A complex Hermean volcanic history
A complex Hermean volcanic history Open
Summary:  The volcanic history of Mercury is slowly being revealed as the Mercury aficionado community is analysing data returned by the MESSENGER mission. Although the presence of products of effusive and explosive volcanism is not d…
View article: Source of Mercury’s Hollow-Forming Materials: Preliminary Results from Geological Mapping, Spectra, and Impact Simulations
Source of Mercury’s Hollow-Forming Materials: Preliminary Results from Geological Mapping, Spectra, and Impact Simulations Open
Mercury has a large core, but paradoxically the surface is also volatile rich. Most core-enlarging scenarios envisaged for Mercury would have heated the silicates and preferentially driven-off these volatiles. Mercury’s hollows, flat…
View article: The high-resolution map of Oxia Planum, Mars; the landing site of the ExoMars Rosalind Franklin rover mission
The high-resolution map of Oxia Planum, Mars; the landing site of the ExoMars Rosalind Franklin rover mission Open
This 1:30,000 scale geological map describes Oxia Planum, Mars, the landing site for the ExoMars Rosalind Franklin rover mission. The map represents our current understanding of bedrock units and their relationships prior to Rosalind Frank…
View article: Global occurrences of very smooth plains patches on Mercury: geologic settings and implications for effusive volcanism
Global occurrences of very smooth plains patches on Mercury: geologic settings and implications for effusive volcanism Open
Introduction:  Large scale effusive volcanism, responsible for most of Mercury's 'smooth plains', is accepted to have ended by ca. 3.5 Ga [1]. We present local occurrences of smooth surfaces, often with the evidence for being topograp…
View article: A Geostratigraphic Map of the Rachmaninoff Basin Area: Integrating Morphostratigraphic and Spectral Units on Mercury
A Geostratigraphic Map of the Rachmaninoff Basin Area: Integrating Morphostratigraphic and Spectral Units on Mercury Open
Geological maps of Earth typically incorporate field observations of rock lithology, structure, composition, and more. In contrast, conventional planetary geological maps are often made using primarily qualitative morphostratigraphic remot…
View article: Mawrth Vallis, Mars, classified using the NOAH-H deep-learning terrain classification system
Mawrth Vallis, Mars, classified using the NOAH-H deep-learning terrain classification system Open
A deep learning (DL) terrain classification system, the Novelty and Anomaly Hunter – HiRISE (NOAH-H) was used to produce a terrain map of Mawrth Vallis, Mars. With it, we digitised the extent and distribution of transverse aeolian ridges (…
View article: Geology of the Neruda quadrangle (H13), Mercury
Geology of the Neruda quadrangle (H13), Mercury Open
We present the first geological map of the Neruda Quadrangle (H13), Mercury. H13 is in Mercury’s southern hemisphere between latitudes 22.5°S–65°S, and longitudes 90°E–180° covering a total area of just under 5 million km², equivalent to 6…
View article: A Spectral Study of the Caloris Basin on Mercury and the Origin of Associated Volcanic Smooth Plains
A Spectral Study of the Caloris Basin on Mercury and the Origin of Associated Volcanic Smooth Plains Open
Results from the NASA/MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission showed that 27% of Mercury's surface is covered by smooth plains mostly produced by extensive effusive volcanism. The Caloris impact ba…
View article: Recent tectonism on Mercury revealed by a global population of small grabens
Recent tectonism on Mercury revealed by a global population of small grabens Open
Since Mariner 10 first imaged Mercury in 1974, tectonic landforms, of which shortening structures dominate, have been well documented. Most tectonic structures on Mercury are thought to have formed, and been most active, early in the plane…
View article: Oxia Planum, Mars, classified using the NOAH-H deep-learning terrain classification system
Oxia Planum, Mars, classified using the NOAH-H deep-learning terrain classification system Open
We present a map of Oxia Planum, Mars, the landing site for the ExoMars Rover. This shows surface texture and aeolian bedform distribution, classified using a deep learning (DL) system. A hierarchical classification scheme was developed, c…
View article: Geology of the Neruda quadrangle (H13), Mercury
Geology of the Neruda quadrangle (H13), Mercury Open
We present the first geological map of the Neruda Quadrangle (H13), Mercury. H13 is in Mercury’s southern hemisphere between latitudes 22.5°S–65°S, and longitudes 90°E–180° covering a total area of just under 5 million km², equivalent to 6…
View article: BepiColombo Unique Views of Mercury Seven Years After MESSENGER
BepiColombo Unique Views of Mercury Seven Years After MESSENGER Open
<p><strong>Introduction:</strong>&#160; On October 1, 2021, the ESA/JAXA BepiColombo spacecraft successfully accomplished its first Mercury&#8217;s swingby, with the closest approach (CA) taking place at 23:34 UTC…
View article: A Global Survey of Mercury for Ejecta Flows: Investigating their Origins, Prevalence, and Significance
A Global Survey of Mercury for Ejecta Flows: Investigating their Origins, Prevalence, and Significance Open
<p>Impact ejecta flows are found on rocky planets, and some icy moons. In contrast to ballistically emplaced ejecta, which thins exponentially from crater rims, ejecta flow deposits have a layered morphology with steeper margins, oft…
View article: Geology of the Derain quadrangle (H10), Mercury
Geology of the Derain quadrangle (H10), Mercury Open
We present the results of geological mapping of Mercury’s Derain (H10) quadrangle (0°-72°E and 22.5°N-22.5°S) using data from the MESSENGER spacecraft. The map is presented on a scale of 1:3,000,000, for which linework was drawn at 1:300,0…
View article: Oxia Planum, Mars, classified using the NOAH-H deep-learning terrain classification system
Oxia Planum, Mars, classified using the NOAH-H deep-learning terrain classification system Open
We present a map of Oxia Planum, Mars, the landing site for the ExoMars Rover. This shows surface texture and aeolian bedform distribution, classified using a deep learning (DL) system. A hierarchical classification scheme was developed, c…
View article: Jezero crater, Mars: application of the deep learning NOAH-H terrain classification system
Jezero crater, Mars: application of the deep learning NOAH-H terrain classification system Open
We applied a deep learning terrain classification system, the ‘Novelty or Anomaly Hunter – HiRISE’ (NOAH-H), originally developed for the ExoMars landing sites in Oxia Planum and Mawrth Vallis, to the Mars 2020 Perseverance rover landing s…
View article: Geological Map of the Derain (H10) Quadrangle of Mercury (5 crater class version)
Geological Map of the Derain (H10) Quadrangle of Mercury (5 crater class version) Open
Geological (morphostratigraphic) map recognising 5 crater degradation classes. We also have a 3 crater class version, that is otherwise identical. This version is slightly revised after review for publication in J Maps 3 Aug 2022.
View article: Geological Map of the Derain (H10) Quadrangle of Mercury (3 crater class version)
Geological Map of the Derain (H10) Quadrangle of Mercury (3 crater class version) Open
Geological (morphostratigraphic) map recognising 3 crater degradation classes. We also have a 5 crater class version that is otherwise identical. This version is slightly revised after review for publication in J Maps (3 Aug 2022).
View article: Geological Map of the Derain (H10) Quadrangle of Mercury (5 crater class version)
Geological Map of the Derain (H10) Quadrangle of Mercury (5 crater class version) Open
Geological (morphostratigraphic) map recognising 5 crater degradation classes. We also have a 3 crater class version, that is otherwise identical. This version is slightly revised after review for publication in J Maps 3 Aug 2022.
View article: Geological Map of the Derain (H10) Quadrangle of Mercury (3 crater class version)
Geological Map of the Derain (H10) Quadrangle of Mercury (3 crater class version) Open
Geological (morphostratigraphic) map recognising 3 crater degradation classes. We also have a 5 crater class version that is otherwise identical. This version is slightly revised after review for publication in J Maps (3 Aug 2022).
View article: Spectral Units Analysis of Quadrangle H05‐Hokusai on Mercury
Spectral Units Analysis of Quadrangle H05‐Hokusai on Mercury Open
MESSENGER mission data allowed the entire surface of Mercury to be mapped at various spatial scales, from both geological and compositional stand points. Here, we present a spectral analysis of the H05‐Hokusai quadrangle, using data acquir…
View article: Oxia Planum, Mars, classified using the NOAH-H deep-learning terrain classification system
Oxia Planum, Mars, classified using the NOAH-H deep-learning terrain classification system Open
We present a map of Oxia Planum, Mars, the landing site for the ExoMars Rover. This shows surface texture and aeolian bedform distribution, classified using a deep learning (DL) system. A hierarchical classification scheme was developed, c…