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Origin of the outer layer of Martian low-aspect ratio layered ejecta craters

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Origin of the outer layer of Martian low-aspect ratio layered ejecta craters. / Boyce, Joseph; Wilson, Lionel; Barlow, Nadine.

In: Icarus, Vol. 245, 01.01.2015, p. 263-272.

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Boyce, Joseph ; Wilson, Lionel ; Barlow, Nadine. / Origin of the outer layer of Martian low-aspect ratio layered ejecta craters. In: Icarus. 2015 ; Vol. 245. pp. 263-272.

Bibtex

@article{2a0484ff7da6491da7bcd27bdafc81fc,
title = "Origin of the outer layer of Martian low-aspect ratio layered ejecta craters",
abstract = "Low-aspect ratio layered ejecta (LARLE) craters are one of the most enigmatic types of martian layered ejecta craters. We propose that the extensive outer layer of these craters is produced through the same base surge mechanism as that which produced the base surge deposits generated by near-surface, buried nuclear and high-explosive detonations. However, the LARLE layers have higher aspect ratios compared with base surge deposits from explosion craters, a result of differences in thicknesses of these layers. This characteristics is probably caused by the addition of large amounts of small particles of dust and ice derived from climate-related mantles of snow, ice and dust in the areas where LARLE craters form. These deposits are likely to be quickly stabilized (order of a few days to a few years) from eolian erosion by formation of duricrust produced by diffusion of water vapor out of the deposits.",
keywords = "Mars, surface, Cratering, Impact processes, Geological processes, Terrestrial planets",
author = "Joseph Boyce and Lionel Wilson and Nadine Barlow",
year = "2015",
month = jan,
day = "1",
doi = "10.1016/j.icarus.2014.07.032",
language = "English",
volume = "245",
pages = "263--272",
journal = "Icarus",
issn = "0019-1035",
publisher = "ELSEVIER ACADEMIC PRESS INC",

}

RIS

TY - JOUR

T1 - Origin of the outer layer of Martian low-aspect ratio layered ejecta craters

AU - Boyce, Joseph

AU - Wilson, Lionel

AU - Barlow, Nadine

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Low-aspect ratio layered ejecta (LARLE) craters are one of the most enigmatic types of martian layered ejecta craters. We propose that the extensive outer layer of these craters is produced through the same base surge mechanism as that which produced the base surge deposits generated by near-surface, buried nuclear and high-explosive detonations. However, the LARLE layers have higher aspect ratios compared with base surge deposits from explosion craters, a result of differences in thicknesses of these layers. This characteristics is probably caused by the addition of large amounts of small particles of dust and ice derived from climate-related mantles of snow, ice and dust in the areas where LARLE craters form. These deposits are likely to be quickly stabilized (order of a few days to a few years) from eolian erosion by formation of duricrust produced by diffusion of water vapor out of the deposits.

AB - Low-aspect ratio layered ejecta (LARLE) craters are one of the most enigmatic types of martian layered ejecta craters. We propose that the extensive outer layer of these craters is produced through the same base surge mechanism as that which produced the base surge deposits generated by near-surface, buried nuclear and high-explosive detonations. However, the LARLE layers have higher aspect ratios compared with base surge deposits from explosion craters, a result of differences in thicknesses of these layers. This characteristics is probably caused by the addition of large amounts of small particles of dust and ice derived from climate-related mantles of snow, ice and dust in the areas where LARLE craters form. These deposits are likely to be quickly stabilized (order of a few days to a few years) from eolian erosion by formation of duricrust produced by diffusion of water vapor out of the deposits.

KW - Mars, surface

KW - Cratering

KW - Impact processes

KW - Geological processes

KW - Terrestrial planets

U2 - 10.1016/j.icarus.2014.07.032

DO - 10.1016/j.icarus.2014.07.032

M3 - Journal article

VL - 245

SP - 263

EP - 272

JO - Icarus

JF - Icarus

SN - 0019-1035

ER -