Newly Discovered Ring‐Moat Dome Structures in the Lunar Maria: Possible Origins and Implications

@article{Zhang2017NewlyDR,
  title={Newly Discovered Ring‐Moat Dome Structures in the Lunar Maria: Possible Origins and Implications},
  author={Feng Zhang and James W. Head and Alexander T. Basilevsky and Roberto Bugiolacchi and Goro Komatsu and Lionel Wilson and Wenzhe Fa and Meng‐Hua Zhu},
  journal={Geophysical Research Letters},
  year={2017},
  volume={44},
  pages={9216-9224}
}
We report on a newly discovered morphological feature on the lunar surface, here named Ring-Moat Dome Structure (RMDS). These low domes (a few meters to ~20 m height with slopes <5°) are typically surrounded by narrow annular depressions or moats. We mapped about 2,600 RMDSs in the lunar maria with diameters ranging from tens to hundreds of meters. Four candidate hypotheses for their origin involving volcanism are considered. We currently favor a mechanism for the formation of the RMDS related… 

Figures from this paper

A theoretical model for the formation of Ring Moat Dome Structures: Products of second boiling in lunar basaltic lava flows
Abstract Newly documented Ring Moat Dome Structures (RMDSs), low mounds typically several hundred meters across with a median height of ~3.5 m and surrounded by moats, occur in the lunar maria. They
Ring‐Moat Dome Structures (RMDSs) in the Lunar Maria: Statistical, Compositional, and Morphological Characterization and Assessment of Theories of Origin
Ring‐moat dome structures (RMDSs) are positive morphologic features found clustered across many mare regions on the Moon, of which only a few isolated examples have been previously reported. Our
Geological Characterization of the Ina Shield Volcano Summit Pit Crater on the Moon: Evidence for Extrusion of Waning‐Stage Lava Lake Magmatic Foams and Anomalously Young Crater Retention Ages
Ina, a distinctive ~2 × 3 km D-shaped depression, is composed of unusual bulbous-shaped mounds surrounded by optically immature hummocky/blocky floor units. The crisp appearance, optical immaturity,
Long-lived volcanism expressed through mare infilling, domes and IMPs in the Arago region of the Moon
Abstract Mare Tranquillitatis corresponds to the deposit of successive Early to Late Imbrian basaltic units filling the Tranquillitatis basin on the Moon. The present study focuses on the western
Rethinking Lunar Mare Basalt Regolith Formation: New Concepts of Lava Flow Protolith and Evolution of Regolith Thickness and Internal Structure
Lunar mare regolith is traditionally thought to have formed by impact bombardment of newly emplaced coherent solidified basaltic lava. We use new models for initial emplacement of basalt magma to
Controls on Lunar Basaltic Volcanic Eruption Structure and Morphology: Gas Release Patterns in Sequential Eruption Phases
Assessment of mare basalt gas release patterns during individual eruptions provides the basis for predicting the effect of vesiculation processes on the structure and morphology of associated
Geological Characteristics of the Moon
Printed from Oxford Research Encyclopedias, Planetary Science. Under the terms of the licence agreement, an individual user may print out a single article for personal use (for details see Privacy

References

SHOWING 1-10 OF 56 REFERENCES
The Origin of Ina: Evidence for Inflated Lava Flows on the Moon
[1] Ina is an enigmatic volcanic feature on the Moon known for its irregularly shaped mounds, the origin of which has been debated since the Apollo Missions. Three main units are observed on the
Ina pit crater on the Moon: Extrusion of waning-stage lava lake magmatic foam results in extremely young crater retention ages
The enigmatic Ina feature on the Moon was recently interpreted to represent extrusive basaltic volcanic activity within the past 100 m.y. of lunar history, an extremely young age for volcanism on the
Venus Volcanism: Initial Analysis from Magellan Data
TLDR
Magellan images confirm that volcanism is widespread and has been fimdamentally important in the formation and evolution of the crust of Venus and reveals a number of large pancake-like domes are morphologically similar to rhyolite-dacite domes on Earth.
Steep-sided Domes on Venus: Characteristics and Implications for Composition and Eruption Conditions
Introduction: The majority of volcanic features observed on Venus so far are interpreted to represent basaltic volcanism,l3 although more silic compositions are possible in the Venus envir~nment.~
Generation, ascent and eruption of magma on the Moon: New insights into source depths, magma supply, intrusions and effusive/explosive eruptions (Part 1: Theory)
We model the ascent and eruption of lunar mare basalt magmas with new data on crustal thickness and density (GRAIL), magma properties, and surface topography, morphology and structure (Lunar
Generation, ascent and eruption of magma on the Moon:new insights into source depths, magma supply, intrusions and effusive/explosive eruptions (Part 2: Predicted Emplacement Processes and Observations)
We utilize a theoretical analysis of the generation, ascent, intrusion and eruption of basaltic magma on the Moon to develop new insights into magma source depths, supply processes, transport and
Ages and stratigraphy of lunar mare basalts: A synthesis
The chronology of lunar volcanism is based on radiometric ages determined from Apollo and Luna landing site samples, regional stratigraphic relationships, and crater degradation and size-frequency
Emplacement and inflation of pahoehoe sheet flows: observations and measurements of active lava flows on Kilauea volcano, Hawaii
Inflated pahoehoe sheet flows have a distinctive horizontal upper surface, which can be several hundred meters across, and are bounded by steep monoclinal uplifts. The inflated sheet flows we studied
Ages of Mare Basalts on the Lunar Nearside: A Synthesis
The chronology of lunar volcanism is based on radiometric ages determined from Apollo and Luna landing site samples, regional stratigraphic relationships, and crater degradation and size-frequency
...
1
2
3
4
5
...