| 44535 |
Creator |
1c5c32b11b5ad1bd9c846a77784abc38 |
| 44535 |
Creator |
5f42b242ffdb697d629c938841756fa1 |
| 44535 |
Creator |
949c668bc3ce6d8779d2003a89cbb493 |
| 44535 |
Creator |
d0e13faff99f34ededfccfae0494fc52 |
| 44535 |
Date |
2015-12-01 |
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Is Part Of |
repository |
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Is Part Of |
p580c713c60793f14842d2873adb1a57a |
| 44535 |
abstract |
Vents and deposits attributed to explosive volcanism occur within numerous impact
craters on both the Moon and Mercury. Given the similarities between the two bodies
it is probable that similar processes control this spatial association on both. However,
the precise morphology and localization of the activity differs on the two bodies,
indicating that the nature of structures beneath impact craters and/or volcanic activity
may also be different. To explore this, we analyze sites of explosive volcanism within
complex impact craters on the Moon and Mercury, comparing the scale and localization
of volcanic activity and evidence for post-formation modification of the host crater.
We show that the scale of vents and deposits is consistently greater on Mercury than
on the Moon, indicating greater eruption energy, powered by a higher concentration
of volatiles. Additionally, while the floors of lunar craters hosting explosive volcanism
are commonly fractured, those on Mercury are not. The most probable explanation for
these differences is that the state of regional compression acting on Mercury's crust
through most of the planet's history results in deeper magma storage beneath craters
on Mercury than on the Moon. The probable role of the regional stress regime in dictating
the depth of intrusion on Mercury suggests that it may also play a role in the depth
of sub-crater intrusion on the Moon and on other planetary bodies. Examples on the
Moon (and also on Mars) commonly occur at locations where flexural extension may facilitate
shallower intrusion than would be driven by the buoyancy of the magma alone. |
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authorList |
authors |
| 44535 |
status |
peerReviewed |
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uri |
http://data.open.ac.uk/oro/document/358490 |
| 44535 |
uri |
http://data.open.ac.uk/oro/document/358495 |
| 44535 |
uri |
http://data.open.ac.uk/oro/document/358496 |
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uri |
http://data.open.ac.uk/oro/document/358497 |
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uri |
http://data.open.ac.uk/oro/document/358498 |
| 44535 |
uri |
http://data.open.ac.uk/oro/document/358499 |
| 44535 |
uri |
http://data.open.ac.uk/oro/document/358890 |
| 44535 |
volume |
431 |
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type |
AcademicArticle |
| 44535 |
type |
Article |
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label |
Thomas, Rebecca J. ; Rothery, David A. ; Conway, Susan J. and Anand, Mahesh (2015).
Explosive volcanism in complex impact craters on Mercury and the Moon: influence of
tectonic regime on depth of magmatic intrusion. Earth and Planetary Science Letters,
431 pp. 164–172. |
| 44535 |
label |
Thomas, Rebecca J. ; Rothery, David A. ; Conway, Susan J. and Anand, Mahesh (2015).
Explosive volcanism in complex impact craters on Mercury and the Moon: influence of
tectonic regime on depth of magmatic intrusion. Earth and Planetary Science Letters,
431 pp. 164–172. |
| 44535 |
Title |
Explosive volcanism in complex impact craters on Mercury and the Moon: influence of
tectonic regime on depth of magmatic intrusion |
| 44535 |
in dataset |
oro |