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Volcanic shields on Mercury identified at last?

Wright, J.; Rothery, D. A.; Balme, M. R. and Conway, S. J. (2017). Volcanic shields on Mercury identified at last? In: 48th Lunar and Planetary Science Conference, 20-24 Mar 2017, The Woodlands, Houston, Texas.

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Abstract

Small (<50 km) basaltic shield volcanoes are known on Earth, the Moon, Mars and Venus, but have not hitherto been positively identified on Mercury. A candidate on Mercury suggested but was subsequently shown not to be a constructional edifice and instead to be a compound volcanic vent that had acted as a source only for explosive volcanic eruptions. Here we introduce a good candidate for a small basaltic shield on Mercury, and a somewhat less convincing second candidate. Both are less than 10 km in diameter, and are situated towards the edges of lava-flooded impact basins, where one might expect to find volcanic structures.

Item Type: Conference or Workshop Item
Project Funding Details:
Funded Project NameProject IDFunding Body
Geological Mapping of the Planet MercuryST/N50421X/1Science and Technology Facilities Council (STFC)
Keywords: Mercury; shield volcano; impact cratering; effusive volcanism; explosive volcanism; secular cooling; global crontraction
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
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Item ID: 49226
Depositing User: Jack Wright
Date Deposited: 25 Apr 2017 15:55
Last Modified: 02 May 2019 21:23
URI: http://oro.open.ac.uk/id/eprint/49226
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