Venus, An Active Planet: Evidence for Recent Volcanic and Tectonic Activity

Filiberto, J.; D’Incecco, P.; Treiman, Allan H.

doi:10.2138/gselements.17.1.67

Cited by 9 publications

(4 citation statements)

References 8 publications

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“…(2010) estimate that the volcano is 2.5 million years old or younger based on this reaction. More recent experimental studies under Venus conditions (Berger et al., 2019; Cutler et al., 2020; Filiberto et al., 2020, 2021; Teffeteller et al., 2022) suggest that chemical weathering occurs on much shorter time frames (i.e., in weeks to months).…”

Section: Ongoing Volcanism On Venus?mentioning

confidence: 98%

Extended Rift‐Associated Volcanism in Ganis Chasma, Venus Detected From Magellan Radar Emissivity

Brossier

Gilmore

Head

2022

Geophysical Research Letters

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The diameter of Venus predicts that it should, like Earth, be volcanically active today (e.g., Head & Solomon, 1981). Radar images of the surface collected during the Magellan mission (1990)(1991)(1992)(1993)(1994) did not identify any morphological evidence of recent volcanic activity. Nonetheless, recent and ongoing volcanic activity on Venus is suggested by other multiple independent lines of evidence. Pioneer Venus Orbiter (PV, 1978(PV, -1986 and Venus Express (VEx, 2005(VEx, -2014 missions gathered more than 30 years of atmospheric measurements searching for evidence of possible volcanic eruptions. Both missions revealed fluctuations in sulfur dioxide (SO 2 ) that are possibly associated with volcanic outgassing on Venus (

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Section: Ongoing Volcanism On Venus?mentioning

confidence: 98%

Extended Rift‐Associated Volcanism in Ganis Chasma, Venus Detected From Magellan Radar Emissivity

Brossier

Gilmore

Head

2022

Geophysical Research Letters

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Section: The Importance Of Identifying Volcanically Active Areas In T...mentioning

confidence: 99%

“…Other recent studies have combined laboratory results, geologic interpretation, and Venus Express VIRTIS 1 micron surface emissivity data to provide additional lines of evidence for recently or possibly ongoing volcano-tectonic activity at Idunn Mons, the major volcanic structure of Imdr Regio on Venus (Cutler et al, 2020;D'Incecco et al, 2017D'Incecco et al, , 2020D'Incecco et al, , 2021aD'Incecco et al, , 2021bD'Incecco et al, , 2021cFiliberto et al, 2020Filiberto et al, , 2021López et al, 2022). Combining this new work with previous studies by Brossier et al (2020Brossier et al ( , 2021, this demonstrates that the Magellan data set is able to provide important clues about the materials on the surface, which can be used as a potential chronometer for the surface age of Venus.…”

mentioning

confidence: 99%

Geologically Recent Areas as One Key Target for Identifying Active Volcanism on Venus

D’Incecco

Filiberto

López

et al. 2022

Geophysical Research Letters

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These missions will focus on the analysis of the chemical composition of the atmosphere and the geologic features of Venus.One of the main targets of the future missions to Venus will be the identification of potentially volcanically active areas on Venus (i.e., Filiberto et al., 2020;Smrekar et al., 2010). Identifying the locations of possibly active volcanism with its related composition is crucial to estimate energy and volatile budget on Venus, that is of great importance to understand the geodynamic evolution of Venus and the terrestrial planets. Evidence of ongoing volcanism can give us clues in the debate between catastrophic (i.e.,

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“…The VIRTIS 1-µm emissivity data are expected to be controlled by the oxidation of ferrous iron in basalts to hematite, where the high thermal emission of Idunn Mons is thought to represent lower degrees of weathering; Smrekar et al (2010) estimate that the volcano is 2.5 million years old or younger based on this reaction. More recent experimental studies under Venus conditions (Berger et al, 2019;Cutler et al, 2020;Filiberto et al, 2020;Filiberto et al, 2021;Teffeteller et al, 2022) suggest that chemical weathering occurs on much shorter time frames (i.e., in weeks to months).…”

mentioning

confidence: 99%

Extended rift-associated volcanism in Ganis Chasma, Venus detected from Magellan radar emissivity

Brossier

Gilmore

Head

2022

Preprint

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Exploration of Venus in the 1970-1990's revealed that the geology of Venus, the most Earth-like of the terrestrial planets, was decidedly un-Earth-like, with no plate tectonics, and no record of the first 80% of its history. A major outstanding question is whether Venus is still volcanically active today. We find that regions of Ganis Chasma have low radar emissivity values, due to low volumes of high dielectric minerals formed by surface -atmosphere weathering on the timescales of around 10s Ma. This confirms the presence of geologically recent volcanism in association with this major tectonic rift zone. The spatial correspondence of this emissivity signature with transient thermal anomalies suggests that Venus has been volcanically active at this site for at least the last few decades, a prediction that can be tested with space missions to Venus in the coming decade.

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Venus, An Active Planet: Evidence for Recent Volcanic and Tectonic Activity

Cited by 9 publications

References 8 publications

Extended Rift‐Associated Volcanism in Ganis Chasma, Venus Detected From Magellan Radar Emissivity

Extended Rift‐Associated Volcanism in Ganis Chasma, Venus Detected From Magellan Radar Emissivity

Geologically Recent Areas as One Key Target for Identifying Active Volcanism on Venus

Extended rift-associated volcanism in Ganis Chasma, Venus detected from Magellan radar emissivity

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