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    Rights statement: This is the author’s version of a work that was accepted for publication in Icarus. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Icarus, 283 , 2016 DOI: 10.1016/j.icarus.2016.04.020

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Observational constraints on the identification of shallow lunar magmatism: insights from floor-fractured craters

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Observational constraints on the identification of shallow lunar magmatism : insights from floor-fractured craters. / Jozwiak, Lauren; Head, James; Neumann, G. A.; Wilson, Lionel.

In: Icarus, Vol. 283, 02.2017, p. 224-231.

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Jozwiak, Lauren ; Head, James ; Neumann, G. A. ; Wilson, Lionel. / Observational constraints on the identification of shallow lunar magmatism : insights from floor-fractured craters. In: Icarus. 2017 ; Vol. 283. pp. 224-231.

Bibtex

@article{98467a6888434b3b810e5d41dbce159d,
title = "Observational constraints on the identification of shallow lunar magmatism: insights from floor-fractured craters",
abstract = "Floor-fractured craters are a class of lunar crater hypothesized to form in response to the emplacement of a shallow magmatic intrusion beneath the crater floor. The emplacement of a shallow magmatic body should result in a positive Bouguer anomaly relative to unaltered complex craters, a signal which is observed for the average Bouguer anomaly interior to the crater walls. We observe the Bouguer anomaly of floor-fractured craters on an individual basis using the unfiltered Bouguer gravity solution from GRAIL and also a degree 100-600 band-filtered Bouguer gravity solution. The low-magnitude of anomalies arising from shallow magmatic intrusions makes identification using unfiltered Bouguer gravity solutions inconclusive. The observed anomalies in the degree 100-600 Bouguer gravity solution are spatially heterogeneous, although there is spatial correlation between volcanic surface morphologies and positive Bouguer anomalies. We interpret these observations to mean that the spatial heterogeneity observed in the Bouguer signal is the result of variable degrees of magmatic degassing within the intrusions.",
keywords = "Moon, Geophysics, Volcanism",
author = "Lauren Jozwiak and James Head and Neumann, {G. A.} and Lionel Wilson",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Icarus. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Icarus, 283, 2016 DOI: 10.1016/j.icarus.2016.04.020",
year = "2017",
month = feb,
doi = "10.1016/j.icarus.2016.04.020",
language = "English",
volume = "283",
pages = "224--231",
journal = "Icarus",
issn = "0019-1035",
publisher = "ELSEVIER ACADEMIC PRESS INC",

}

RIS

TY - JOUR

T1 - Observational constraints on the identification of shallow lunar magmatism

T2 - insights from floor-fractured craters

AU - Jozwiak, Lauren

AU - Head, James

AU - Neumann, G. A.

AU - Wilson, Lionel

N1 - This is the author’s version of a work that was accepted for publication in Icarus. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Icarus, 283, 2016 DOI: 10.1016/j.icarus.2016.04.020

PY - 2017/2

Y1 - 2017/2

N2 - Floor-fractured craters are a class of lunar crater hypothesized to form in response to the emplacement of a shallow magmatic intrusion beneath the crater floor. The emplacement of a shallow magmatic body should result in a positive Bouguer anomaly relative to unaltered complex craters, a signal which is observed for the average Bouguer anomaly interior to the crater walls. We observe the Bouguer anomaly of floor-fractured craters on an individual basis using the unfiltered Bouguer gravity solution from GRAIL and also a degree 100-600 band-filtered Bouguer gravity solution. The low-magnitude of anomalies arising from shallow magmatic intrusions makes identification using unfiltered Bouguer gravity solutions inconclusive. The observed anomalies in the degree 100-600 Bouguer gravity solution are spatially heterogeneous, although there is spatial correlation between volcanic surface morphologies and positive Bouguer anomalies. We interpret these observations to mean that the spatial heterogeneity observed in the Bouguer signal is the result of variable degrees of magmatic degassing within the intrusions.

AB - Floor-fractured craters are a class of lunar crater hypothesized to form in response to the emplacement of a shallow magmatic intrusion beneath the crater floor. The emplacement of a shallow magmatic body should result in a positive Bouguer anomaly relative to unaltered complex craters, a signal which is observed for the average Bouguer anomaly interior to the crater walls. We observe the Bouguer anomaly of floor-fractured craters on an individual basis using the unfiltered Bouguer gravity solution from GRAIL and also a degree 100-600 band-filtered Bouguer gravity solution. The low-magnitude of anomalies arising from shallow magmatic intrusions makes identification using unfiltered Bouguer gravity solutions inconclusive. The observed anomalies in the degree 100-600 Bouguer gravity solution are spatially heterogeneous, although there is spatial correlation between volcanic surface morphologies and positive Bouguer anomalies. We interpret these observations to mean that the spatial heterogeneity observed in the Bouguer signal is the result of variable degrees of magmatic degassing within the intrusions.

KW - Moon

KW - Geophysics

KW - Volcanism

U2 - 10.1016/j.icarus.2016.04.020

DO - 10.1016/j.icarus.2016.04.020

M3 - Journal article

VL - 283

SP - 224

EP - 231

JO - Icarus

JF - Icarus

SN - 0019-1035

ER -