Hansteen Mons: An LROC geological perspective

Boyce, J. M.; Giguere, T. A.; Hawke, B. R.; Mouginis-Mark, P. J.; Robinson, M. S.; Lawrence, S. J.; Trang, D.; Clegg-Watkins, R. N.

doi:10.1016/j.icarus.2016.08.013

Cited by 9 publications

(23 citation statements)

References 25 publications

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“…Highly fractured suggests there is a fragile crust in this region. And the irregular depressions, suspected calderas, were identified through remote sensing image (Boyce et al., 2017). It is indicated that a weaker lunar crust in the eastern part of the Pitted Unit would have been more conducive to the formation of a magmatic upwelling.…”

Section: Resultsmentioning

confidence: 99%

“…The elevation in the Mons Hansteen region undulates from −1,800 m to −900 m, with ∼200-1,100 m standing above the surrounding mare units. The highest position is located at the intersection of AA' and CC' (marked in Figure 2a) in the southwest, with the highest elevation ∼−906 m. Mons Hansteen comprises three geological units, North Massif, Pitted and Hilly dissected (Figure 1b), as in Boyce et al (2017) and were redrawn with reference to elevation and slope features. The new Pitted unit covers high altitude areas and the boundary zone of Pitted unit corresponds to steep slopes.…”

Section: Topographymentioning

confidence: 99%

“…Wagner et al (2010) suggested that the age of the Mons Hansteen volcanism ranges from 3.74 to 3.65 Ga, postdating the Craters Billy (∼3.88 Ga) and Hansteen (∼3.87 Ga) but predating the surrounding mare unit (∼3.51 Ga). Boyce et al (2017) further divided the Mons Hansteen region into three geological units, the Hilly dissected, the Pitted and the North Massif, and identified the geological units and dated their formation at ∼3.74 Ga, ∼3.5 Ga, and ∼3.5 Ga, respectively. The age from Boyce et al (2017) suggested that volcanism in the Mons Hansteen region occurred at a similar time as the formation of the mare around it.…”

mentioning

confidence: 99%

“…Boyce et al (2017) further divided the Mons Hansteen region into three geological units, the Hilly dissected, the Pitted and the North Massif, and identified the geological units and dated their formation at ∼3.74 Ga, ∼3.5 Ga, and ∼3.5 Ga, respectively. The age from Boyce et al (2017) suggested that volcanism in the Mons Hansteen region occurred at a similar time as the formation of the mare around it. All this work considered the effect of secondary cratering issue on dating results, but ignored the influence of different porosity between targets on dating results.…”

mentioning

confidence: 99%

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New View of the Lunar Silicic Volcanism in the Mons Hansteen: Formation and Origins

Qiu

Yan

et al. 2022

JGR Planets

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Silicic volcanos with high‐thorium (Th), low FeO and TiO2 contents are rare on the Moon, but exploring the formation and origins of silicic volcanos can help us to understand the complex process of lunar crustal evolution. The origins of silicic volcanic Mons Hansteen complex on the southern edge of the Oceanus Procellarum (50.2°W and 12.2°S) are enigmatic. Here we use recent high‐resolution topographic data and gravity data to assess the morphology and shallow tectonic features of this complex to investigate its formation and evolution. The results from our crater size‐frequency distribution model show that the silicic volcanism in Mons Hansteen occurred as early as ∼3.8 Ga. A mafic intrusion beneath the Mons Hansteen originated from the Crater Billy impact event. The magma rose to within ∼11 km beneath the lunar surface causing the crust to melt and develop into silicic magma. The silicic magma erupted onto the lunar surface and was eventually covered by younger mare basalt. We conclude that silicic volcanos are older than we previously thought. Geophysical research on the Mons Hansteen area provides a new perspective thus supplementing and extending our knowledge of the silicic volcanism.

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Section: Resultsmentioning

confidence: 99%

Section: Topographymentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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New View of the Lunar Silicic Volcanism in the Mons Hansteen: Formation and Origins

Qiu

Yan

et al. 2022

JGR Planets

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“…One of the enigmatic findings of this lithology is an association with highly silicic rocks at Hansteen alpha (e.g., [204,207]). Integrated elemental, mineralogical and high resolution imaging results have indicated that Mg-spinel exposures on Hansteen alpha are restricted to low Fe, pitted unit (absolute model age:~3.5 billion years) and morphologically associated with ridges along scalloped features (e.g., [208,209]). It has been suggested that the Mg-spinel exposures might not be genetically related to the silicic lithology at Hansteen alpha.…”

Section: Primordial Crust Produced (And Modified) Dominantly By Intermentioning

confidence: 99%

The New Moon: Major Advances in Lunar Science Enabled by Compositional Remote Sensing from Recent Missions

Dhingra

2018

Geosciences

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Volatile-bearing lunar surface and interior, giant magmatic-intrusion-laden near and far side, globally distributed layer of purest anorthosite (PAN) and discovery of Mg-Spinel anorthosite, a new rock type, represent just a sample of the brand new perspectives gained in lunar science in the last decade. An armada of missions sent by multiple nations and sophisticated analyses of the precious lunar samples have led to rapid evolution in the understanding of the Moon, leading to major new findings, including evidence for water in the lunar interior. Fundamental insights have been obtained about impact cratering, the crystallization of the lunar magma ocean and conditions during the origin of the Moon. The implications of this understanding go beyond the Moon and are therefore of key importance in solar system science. These new views of the Moon have challenged the previous understanding in multiple ways and are setting a new paradigm for lunar exploration in the coming decade both for science and resource exploration. Missions from India, China, Japan, South Korea, Russia and several private ventures promise continued exploration of the Moon in the coming years, which will further enrich the understanding of our closest neighbor. The Moon remains a key scientific destination, an active testbed for in-situ resource utilization (ISRU) activities, an outpost to study the universe and a future spaceport for supporting planetary missions.

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Morphological and Chronological Mapping of Manilius Crater Region Using Chandrayaan-1 Data Sets

Kumaresan

Saravanavel

2019

J Indian Soc Remote Sens

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Hansteen Mons: An LROC geological perspective

Cited by 9 publications

References 25 publications

New View of the Lunar Silicic Volcanism in the Mons Hansteen: Formation and Origins

New View of the Lunar Silicic Volcanism in the Mons Hansteen: Formation and Origins

The New Moon: Major Advances in Lunar Science Enabled by Compositional Remote Sensing from Recent Missions

Morphological and Chronological Mapping of Manilius Crater Region Using Chandrayaan-1 Data Sets

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