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Recent Hotspot Volcanism on Venus from VIRTIS Emissivity Data

Smrekar , Suzanne E. and Stofan, Ellen R. and Mueller, Nils and Treiman, Allan and Elkins-Tanton, Linda and Helbert, Joern and Piccioni, Giuseppe and Drossart, Pierre (2010) Recent Hotspot Volcanism on Venus from VIRTIS Emissivity Data. Science, 328 (5978), pp. 605-608. AAAS. DOI: 10.1126/science.1186785. ISSN 0036-8075.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1126/science.1186785

Abstract

The questions of whether Venus is geologically active and how the planet has resurfaced over the past billion years have major implications for interior dynamics and climate change. Nine “hotspots”—areas analogous to Hawaii, with volcanism, broad topographic rises, and large positive gravity anomalies suggesting mantle plumes at depth—have been identified as possibly active. This study used 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 to identify compositional differences in lava flows at three hotspots. The anomalies are interpreted as a lack of surface weathering. We estimate the flows to be younger than 2.5 million years and probably much younger, about 250,000 years or less, indicating that Venus is actively resurfacing.

Document Type:Article
Title:Recent Hotspot Volcanism on Venus from VIRTIS Emissivity Data
Authors:
AuthorsInstitution or Email of Authors
Smrekar , Suzanne E.Jet Propulsion Laboratory, Mail Stop 183-501, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
Stofan, Ellen R.Proxemy Research, 20528 Farcroft Lane, Laytonsville, MD 20882, USA
Mueller, NilsInstitute for Planetology, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149 Münster, Germany.; Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, D-12489 Berlin, Germany
Treiman, AllanMassachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Building 54-824, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
Elkins-Tanton, LindaLunar and Planetary Institute, 3600 Bay Area Boulevard, Houston, TX 77058, USA
Helbert, Joernjoern.helbert@dlr.de
Piccioni, Giuseppe(Istituto Nazionale di Astrofisica–Istituto di Astrofisica Spaziale e Fisica Cosmica (INAF-IASF), Via del Fosso del Cavaliere 100, 00133 Rome, Italy
Drossart, PierreLaboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique (LESIA), Observatoire de Paris, CNRS, UPMC, Université Paris-Diderot, 5 Place Jules Janssen, 92195 Meudon, France
Date:April 2010
Journal or Publication Title:Science
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:328
DOI:10.1126/science.1186785
Page Range:pp. 605-608
Publisher:AAAS
ISSN:0036-8075
Status:Published
Keywords:Hotspot Volcanism, Venus, VIRTIS, Venus Express
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Venus Express Kamera (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Terahertz and Infrared Sensors
Deposited By: Ulrike Stiebeler
Deposited On:12 Jan 2011 11:11
Last Modified:26 Mar 2013 13:20

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