Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars

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Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars. / Pan, L.; Ehlmann, B. L.

In: Geophysical Research Letters, Vol. 41, No. 6, 28.03.2014, p. 1890-1898.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Pan, L & Ehlmann, BL 2014, 'Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars', Geophysical Research Letters, vol. 41, no. 6, pp. 1890-1898. https://doi.org/10.1002/2014GL059423

APA

Pan, L., & Ehlmann, B. L. (2014). Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars. Geophysical Research Letters, 41(6), 1890-1898. https://doi.org/10.1002/2014GL059423

Vancouver

Pan L, Ehlmann BL. Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars. Geophysical Research Letters. 2014 Mar 28;41(6):1890-1898. https://doi.org/10.1002/2014GL059423

Author

Pan, L. ; Ehlmann, B. L. / Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars. In: Geophysical Research Letters. 2014 ; Vol. 41, No. 6. pp. 1890-1898.

Bibtex

@article{428bc1a4700f4bf592c1a2d3f1d9c5f0,
title = "Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars",
abstract = "Here we report detections of Fe/Mg phyllosilicates and hydrated silica in discrete stratigraphic units within the knobby terrains of Acidalia Planitia made using data acquired by Compact Reconnaissance Imaging Spectrometer for Mars. Fe/Mg phyllosilicates are detected in knobs that were eroded during southward retreat of the dichotomy boundary. A second later unit, now eroded to steep-sided platforms embaying the knobs, contains hydrated silica, which may have formed via localized vapor weathering, thin-film leaching, or transient water that resulted in surface alteration. These are then overlain by smooth plains with small cones, hypothesized to be mud volcanoes which previous studies have shown to have no hydrated minerals. In spite of Acidalia's location within the putative northern ocean, collectively, the data record a history of aqueous processes much like that in the southern highlands with progressively less intensive aqueous chemical alteration from the Noachian to Amazonian.",
keywords = "hydrated silica, Mars mineralogy, Northern Plains, phyllosilicates",
author = "L. Pan and Ehlmann, {B. L.}",
year = "2014",
month = mar,
day = "28",
doi = "10.1002/2014GL059423",
language = "English",
volume = "41",
pages = "1890--1898",
journal = "Geophysical Research Letters (Online)",
issn = "1944-8007",
publisher = "Wiley-Blackwell",
number = "6",

}

RIS

TY - JOUR

T1 - Phyllosilicate and hydrated silica detections in the knobby terrains of Acidalia Planitia, northern plains, Mars

AU - Pan, L.

AU - Ehlmann, B. L.

PY - 2014/3/28

Y1 - 2014/3/28

N2 - Here we report detections of Fe/Mg phyllosilicates and hydrated silica in discrete stratigraphic units within the knobby terrains of Acidalia Planitia made using data acquired by Compact Reconnaissance Imaging Spectrometer for Mars. Fe/Mg phyllosilicates are detected in knobs that were eroded during southward retreat of the dichotomy boundary. A second later unit, now eroded to steep-sided platforms embaying the knobs, contains hydrated silica, which may have formed via localized vapor weathering, thin-film leaching, or transient water that resulted in surface alteration. These are then overlain by smooth plains with small cones, hypothesized to be mud volcanoes which previous studies have shown to have no hydrated minerals. In spite of Acidalia's location within the putative northern ocean, collectively, the data record a history of aqueous processes much like that in the southern highlands with progressively less intensive aqueous chemical alteration from the Noachian to Amazonian.

AB - Here we report detections of Fe/Mg phyllosilicates and hydrated silica in discrete stratigraphic units within the knobby terrains of Acidalia Planitia made using data acquired by Compact Reconnaissance Imaging Spectrometer for Mars. Fe/Mg phyllosilicates are detected in knobs that were eroded during southward retreat of the dichotomy boundary. A second later unit, now eroded to steep-sided platforms embaying the knobs, contains hydrated silica, which may have formed via localized vapor weathering, thin-film leaching, or transient water that resulted in surface alteration. These are then overlain by smooth plains with small cones, hypothesized to be mud volcanoes which previous studies have shown to have no hydrated minerals. In spite of Acidalia's location within the putative northern ocean, collectively, the data record a history of aqueous processes much like that in the southern highlands with progressively less intensive aqueous chemical alteration from the Noachian to Amazonian.

KW - hydrated silica

KW - Mars mineralogy

KW - Northern Plains

KW - phyllosilicates

U2 - 10.1002/2014GL059423

DO - 10.1002/2014GL059423

M3 - Journal article

AN - SCOPUS:84896587554

VL - 41

SP - 1890

EP - 1898

JO - Geophysical Research Letters (Online)

JF - Geophysical Research Letters (Online)

SN - 1944-8007

IS - 6

ER -

ID: 251603225