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http://hdl.handle.net/20.500.12386/27578
Title: | Mercury's Caloris basin: Continuity between the interior and exterior plains | Authors: | Rothery, David A. Mancinelli, Paolo GUZZETTA, Laura Giovanna Wright, Jack |
Issue Date: | 2017 | Journal: | JOURNAL OF GEOPHYSICAL RESEARCH (PLANETS) | Number: | 122 | Issue: | 3 | First Page: | 560 | Abstract: | The smooth plains on the floor of Mercury's Caloris basin and those almost entirely surrounding it beyond its rim are usually accepted to be younger than the rim materials and to be lava flows rather than impact melt. High-resolution imaging shows that the emplacement of interior and exterior plains was concurrent, with evidence of both inward and outward flow while they were being emplaced. The Caloris rim is breached in two places by continuous smooth plains that seamlessly connect interior and exterior plains. The gross-scale spectral and compositional distinctiveness of interior and exterior plains is blurred on a scale of several tens of kilometers, which could reflect interfingering of flow units less than a few hundred kilometers long that tapped melt sources of different composition and/or depth inside and outside the basin followed by local mixing of regolith. Flows occurring both inside and outside the basin should be included in estimates of the total erupted volume. | URI: | http://hdl.handle.net/20.500.12386/27578 | URL: | https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017JE005282 | ISSN: | 2169-9097 | DOI: | 10.1002/2017JE005282 | Bibcode ADS: | 2017JGRE..122..560R | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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2017JE005282.pdf | Pdf editoriale | 5.14 MB | Adobe PDF | View/Open |
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