The dispersal of pyroclasts from ancient explosive volcanoes on Mars: Implications for the friable layered deposits

Laura Kerber; James W. Head; Jean Baptiste Madeleine; François Forget; Lionel Wilson

doi:10.1016/j.icarus.2012.03.016

The dispersal of pyroclasts from ancient explosive volcanoes on Mars: Implications for the friable layered deposits

Laura Kerber
, James W. Head
, Jean Baptiste Madeleine
, François Forget
, Lionel Wilson

Department of Geological Sciences
Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
Lancaster Environment Centre

Research output: Contribution to journal › Article › peer-review

86 Citations (Scopus)

Abstract

A number of voluminous, fine-grained, friable deposits have been mapped on Mars. The modes of origin for these deposits are debated. The feasibility for an origin by volcanic airfall for the friable deposits is tested using a global circulation model to simulate the dispersal of pyroclasts from candidate source volcanoes near each deposit. It is concluded that the Medusae Fossae Formation and Electris deposits are easily formed through volcanic processes, and that the Hellas deposits and south polar pitted deposits could have some contribution from volcanic sources in specific atmospheric regimes. The Arabia and Argyre deposits are not well replicated by modeled pyroclast dispersal, suggesting that these deposits were most likely emplaced by other means.

Original language	English
Pages (from-to)	358-381
Number of pages	24
Journal	Icarus
Volume	219
Issue number	1
DOIs	https://doi.org/10.1016/j.icarus.2012.03.016
Publication status	Published - 1 May 2012

Keywords

Geological processes
Mars
Mars, Atmosphere
Terrestrial planets
Volcanism

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10.1016/j.icarus.2012.03.016

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title = "The dispersal of pyroclasts from ancient explosive volcanoes on Mars: Implications for the friable layered deposits",

abstract = "A number of voluminous, fine-grained, friable deposits have been mapped on Mars. The modes of origin for these deposits are debated. The feasibility for an origin by volcanic airfall for the friable deposits is tested using a global circulation model to simulate the dispersal of pyroclasts from candidate source volcanoes near each deposit. It is concluded that the Medusae Fossae Formation and Electris deposits are easily formed through volcanic processes, and that the Hellas deposits and south polar pitted deposits could have some contribution from volcanic sources in specific atmospheric regimes. The Arabia and Argyre deposits are not well replicated by modeled pyroclast dispersal, suggesting that these deposits were most likely emplaced by other means.",

keywords = "Geological processes, Mars, Mars, Atmosphere, Terrestrial planets, Volcanism",

author = "Laura Kerber and Head, \{James W.\} and Madeleine, \{Jean Baptiste\} and Fran{\c c}ois Forget and Lionel Wilson",

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T1 - The dispersal of pyroclasts from ancient explosive volcanoes on Mars

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AU - Kerber, Laura

AU - Head, James W.

AU - Madeleine, Jean Baptiste

AU - Forget, François

AU - Wilson, Lionel

PY - 2012/5/1

Y1 - 2012/5/1

N2 - A number of voluminous, fine-grained, friable deposits have been mapped on Mars. The modes of origin for these deposits are debated. The feasibility for an origin by volcanic airfall for the friable deposits is tested using a global circulation model to simulate the dispersal of pyroclasts from candidate source volcanoes near each deposit. It is concluded that the Medusae Fossae Formation and Electris deposits are easily formed through volcanic processes, and that the Hellas deposits and south polar pitted deposits could have some contribution from volcanic sources in specific atmospheric regimes. The Arabia and Argyre deposits are not well replicated by modeled pyroclast dispersal, suggesting that these deposits were most likely emplaced by other means.

AB - A number of voluminous, fine-grained, friable deposits have been mapped on Mars. The modes of origin for these deposits are debated. The feasibility for an origin by volcanic airfall for the friable deposits is tested using a global circulation model to simulate the dispersal of pyroclasts from candidate source volcanoes near each deposit. It is concluded that the Medusae Fossae Formation and Electris deposits are easily formed through volcanic processes, and that the Hellas deposits and south polar pitted deposits could have some contribution from volcanic sources in specific atmospheric regimes. The Arabia and Argyre deposits are not well replicated by modeled pyroclast dispersal, suggesting that these deposits were most likely emplaced by other means.

KW - Geological processes

KW - Mars

KW - Mars, Atmosphere

KW - Terrestrial planets

KW - Volcanism

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DO - 10.1016/j.icarus.2012.03.016

M3 - Article

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SN - 0019-1035

VL - 219

SP - 358

EP - 381

JO - Icarus

JF - Icarus

IS - 1

ER -

The dispersal of pyroclasts from ancient explosive volcanoes on Mars: Implications for the friable layered deposits

Abstract

Keywords

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