Active volcanism on Venus in the Ganiki Chasma rift zone

  title={Active volcanism on Venus in the Ganiki Chasma rift zone},
  author={Eugene V. Shalygin and Wojciech J. Markiewicz and Alexandre T. Basilevsky and D. V. Titov and Nikolay I. Ignatiev and J. W. Head},
  journal={Geophysical Research Letters},
  pages={4762 - 4769}
Venus is known to have been volcanically resurfaced in the last third of solar system history and to have undergone a significant decrease in volcanic activity a few hundred million years ago. However, fundamental questions remain: Is Venus still volcanically active today, and if so, where and in what geological and geodynamic environment? Here we show evidence from the Venus Express Venus Monitoring Camera for transient bright spots that are consistent with the extrusion of lava flows that… 
Volcanism as an active planetary process on Venus
  • M. Airey
  • Geology, Environmental Science
  • 2015
Volcanism has been a crucial planetary process in the evolution of Venus, shaping the surface and contributing to the formation of the atmosphere and clouds. Some of the key outstanding questions are
Evidence for a Locally Thinned Lithosphere Associated With Recent Volcanism at Aramaiti Corona, Venus
Heat flow estimates of terrestrial planets and icy satellites are important for exploring their thermal evolution. Topographic signatures of flexure can be used to estimate the effective elastic
Implications of Anomalous Crustal Provinces for Venus' Resurfacing History
Current Venus tectonics suggests a stagnant lid mode of mantle convection. However, the planet is debated to enter an episodic regime after long quiescent periods, driven by resurfacing due to rapid
Estimates on the Frequency of Volcanic Eruptions on Venus
Venus hosts many thousands of volcanic landforms, including individual edifices, volcanotectonic structures, and vast expanses of effusively emplaced plains lavas. Numerous lines of circumstantial
The distribution of volcanism in the Beta‐Atla‐Themis region of Venus: Its relationship to rifting and implications for global tectonic regimes
A new analysis of the spatial relationships between volcanic features and rifts on Venus provides new constraints on models of planetary evolution. We developed a new database of volcanic features
Distinct Mineralogy and Age of Individual Lava Flows in Atla Regio, Venus Derived From Magellan Radar Emissivity
The stratigraphic relationship of Maat's youngest flows with impact craters may indicate the timeframe of the production of specific ferroelectrics via chemical weathering is over 9-60 Ma, supporting the idea that Maat has younger volcanic activity.
Detectability of Remanent Magnetism in the Crust of Venus
Observations of planetary magnetic fields provide fundamental insights into the origin and evolution of terrestrial planets. However, whether Venus ever hosted a dynamo is unknown. Here we show that
Dynamics of Lithospheric Overturns and Implications for Venus's Surface
Venus is currently characterized by stagnant‐lid mantle convection, but could have previously experienced episodes of global resurfacing due to lithospheric overturn. Using numerical models of
Extraterrestrial lava lakes


Recent Hotspot Volcanism on Venus from VIRTIS Emissivity Data
Variations in the thermal emissivity of the surface observed by the Visible and Infrared Thermal Imaging Spectrometer on the European Space Agency’s Venus Express spacecraft are used to identify compositional differences in lava flows at three hotspots, indicating that Venus is actively resurfacing.
Present‐Day Volcanism on Venus: Evidence from Microwave Radiometry
We present new evidence for volcanic eruptions and lava flow emplacement on Venus within the last several decades. An integrated study of a radar‐dark lava flow unit in Bereghinia Planitia on Venus
The history of volcanism on Venus
Mechanisms for lithospheric heat transport on Venus: Implications for tectonic style and volcanism
The tectonic and volcanic characteristics of the surface of Venus are poorly known, but these characteristics must be closely related to the mechanism by which Venus rids itself of internal heat. On
Venus tectonics: An overview of Magellan observations
Magellan observations of the tectonic characteristics of highland regions on Venus are discussed with reference to competing theories for highland formation and evolution. Complex rigid terrain, or
Geological Evolution of Venus: Rises, Plains, Plumes, and Plateaus
Crustal plateaus and volcanic rises, major physiographic features on Venus, both formed over mantle plumes. Crustal plateaus were produced by large degrees of plume melting beneath thin lithosphere.
Age of rifting and associated volcanism in Atla Regio, Venus
An estimation of the age of rifting and associated volcanism in Atla Regio is carried out based on photogeologic analyses of the stratigraphic relationships between rift-associated features and
Transport of SO2 by explosive volcanism on Venus
  • L. Glaze
  • Environmental Science, Physics
  • 1999
Observations by the Pioneer Venus orbiter and many different types of analyses have suggested the possibility of contemporary explosive volcanism on Venus. The rise of volcanic eruption plumes on