Program with Links to Abstracts

Schedule Overview  
Times are listed in the US/Central time zone. Add Time Zone

Venus 1: Mantles Lithospheres and Atmospheres, Oh My!

Tuesday, March 14, 2023, 2:15 PM
Waterway Ballroom 5

Thomas Widemann
Anna Gülcher
Becca Hahn
2:15 PM
Session Introduction
2:20 PM
Nimmo F.* Mackwell S. J.
Viscous Relaxation as a Probe of Heat Flux and Crustal Plateau Composition on Venus [#1280]
Relaxation of crustal plateaus precludes a quartz-rich composition. Anorthite plateaus would imply Venus heat fluxes lower than radiogenic heat production.
2:30 PM
Byrne P. K.* Şengör A. M. C. Ghail R. C. Klimczak C. James P. B. et al.
Venus’ Highland Tesserae are Tectonic Counterparts to Earth’s Cratons [#2924]
The oldest places / On Venus might have secrets / Like Earth’s ancient rocks.
2:40 PM
Buck W. R.* Head J. W.
Compression and Tension in Model Venus Highlands Partly Decoupled from Mantle Flow [#2375]
Simple models show that the flow of hot lower crust on Venus driven by mantle motions can produce both compressive and rifted highlands.
2:50 PM
Maia J. S.* Wieczorek M. A. Plesa A.-C.
The Mantle Viscosity Structure of Venus [#1737]
A Bayesian investigation of the dynamic signature of Venus’ gravity and topography indicates the presence of a low-viscosity zone in the upper mantle.
3:00 PM
Panel Q&A
3:20 PM
Ernst R. E.* El Bilali H. Buchan K. L. Head J. W.
Mafic Dyke Swarms: Key to Understanding Magmatism and Tectonics on Venus [#2603]
Mafic dyke swarms are key to understanding venusian magmatism, tectonics, and perhaps also its atmospheric evolution.
3:30 PM
Weller M. B.* Harman C. E. Kiefer W. S. Way M. J.
Venus from the Interior to Surface: Atmospheric Evolution from Large-Scale Tectonic and Geodynamic Models Models [#1720]
Venus, Earth’s harsh twin / Why so inhospitable? / Deep secrets released.
3:40 PM
Semprich J.* Filiberto J.
Compositional Variation of Venusian Melts as a Function of Thermal Gradient and Protolith [#1468]
Below the surface / Rocks of Venus are melting / What are they made of?
3:50 PM
Zolotov M. Yu.* Mogul R. Limaye S. S. Way M. J. Garvin J. B.
Venus Cloud Composition Suggested from the Pioneer Venus Large Probe Neutral Mass Spectrometer Data [#2880]
Clouds and hazes could be saturated by Si-Fe-Mg-C rich alteration products of cometary dust and contain silica, sulfates, chlorides, and insoluble organics.
4:00 PM
Panel Q&A
4:20 PM
Gülcher A. J. P.* Yu T. Stadler D. Gerya T. V.
Corona Structures at Topographic Margins on Venus Reveal Interior Dynamic Processes [#1419]
With a joint study of mission data analysis and 3D modeling of asymmetrical coronae on Venus, we make predictions on the processes that shape(d) Venus’ geology.
4:30 PM
Schools J.* Smrekar S. E.
4:40 PM
Davaille A.*
What VERITAS Will See in Venus Artemis Coronae: An Earth Early Archean Plate Tectonics System? [#2550]
Laboratory models suggest that present-day Venus could give insights on Archean Earth, but we need VERITAS high-resolution data to get these informations.
4:50 PM
Surury S. Mason P. J.*
Mapping Recent Activity on Venus: Stress Field Analysis and Models of Evolution for Tectono-Magmatic Features in SW Parga Chasma [#2554]
Mapping ongoing activity on Venus through stress field analysis and models of evolution for tectono-magmatic features in SW Parga Chasma.
5:00 PM
Panel Q&A
5:20 PM
Session Closure