Athabasca Valles, Mars: A lava-draped channel system

W. L. Jaeger, L. P. Keszthelyi, Alfred S. McEwen, C. M. Dundas, P. S. Russell

Research output: Contribution to journalArticle

114 Citations (Scopus)

Abstract

Athabasca Valles is a young outflow channel system on Mars that may have been carved by catastrophic water floods. However, images acquired by the High-Resolution Imaging Science Experiment camera onboard the Mars Reconnaissance Orbiter spacecraft reveal that Athabasca Valles is now entirely draped by a thin layer of solidified lava - the remnant of a once-swollen river of molten rock. The lava erupted from a fissure, inundated the channels, and drained downstream in geologically recent times. Purported ice features in Athabasca Valles and its distal basin, Cerberus Palus, are actually composed of this lava. Similar volcanic processes may have operated in other ostensibly fluvial channels, which could explain in part why the landers sent to investigate sites of ancient flooding on Mars have predominantly found lava at the surface instead.

Original languageEnglish (US)
Pages (from-to)1709-1711
Number of pages3
JournalScience
Volume317
Issue number5845
DOIs
StatePublished - Sep 21 2007

Fingerprint

Mars
Spacecraft
Ice
Rivers
Water

ASJC Scopus subject areas

  • General

Cite this

Jaeger, W. L., Keszthelyi, L. P., McEwen, A. S., Dundas, C. M., & Russell, P. S. (2007). Athabasca Valles, Mars: A lava-draped channel system. Science, 317(5845), 1709-1711. https://doi.org/10.1126/science.1143315

Athabasca Valles, Mars : A lava-draped channel system. / Jaeger, W. L.; Keszthelyi, L. P.; McEwen, Alfred S.; Dundas, C. M.; Russell, P. S.

In: Science, Vol. 317, No. 5845, 21.09.2007, p. 1709-1711.

Research output: Contribution to journalArticle

Jaeger, WL, Keszthelyi, LP, McEwen, AS, Dundas, CM & Russell, PS 2007, 'Athabasca Valles, Mars: A lava-draped channel system', Science, vol. 317, no. 5845, pp. 1709-1711. https://doi.org/10.1126/science.1143315
Jaeger WL, Keszthelyi LP, McEwen AS, Dundas CM, Russell PS. Athabasca Valles, Mars: A lava-draped channel system. Science. 2007 Sep 21;317(5845):1709-1711. https://doi.org/10.1126/science.1143315
Jaeger, W. L. ; Keszthelyi, L. P. ; McEwen, Alfred S. ; Dundas, C. M. ; Russell, P. S. / Athabasca Valles, Mars : A lava-draped channel system. In: Science. 2007 ; Vol. 317, No. 5845. pp. 1709-1711.
@article{4492545a781042b59b34d0edf783434a,
title = "Athabasca Valles, Mars: A lava-draped channel system",
abstract = "Athabasca Valles is a young outflow channel system on Mars that may have been carved by catastrophic water floods. However, images acquired by the High-Resolution Imaging Science Experiment camera onboard the Mars Reconnaissance Orbiter spacecraft reveal that Athabasca Valles is now entirely draped by a thin layer of solidified lava - the remnant of a once-swollen river of molten rock. The lava erupted from a fissure, inundated the channels, and drained downstream in geologically recent times. Purported ice features in Athabasca Valles and its distal basin, Cerberus Palus, are actually composed of this lava. Similar volcanic processes may have operated in other ostensibly fluvial channels, which could explain in part why the landers sent to investigate sites of ancient flooding on Mars have predominantly found lava at the surface instead.",
author = "Jaeger, {W. L.} and Keszthelyi, {L. P.} and McEwen, {Alfred S.} and Dundas, {C. M.} and Russell, {P. S.}",
year = "2007",
month = "9",
day = "21",
doi = "10.1126/science.1143315",
language = "English (US)",
volume = "317",
pages = "1709--1711",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "5845",

}

TY - JOUR

T1 - Athabasca Valles, Mars

T2 - A lava-draped channel system

AU - Jaeger, W. L.

AU - Keszthelyi, L. P.

AU - McEwen, Alfred S.

AU - Dundas, C. M.

AU - Russell, P. S.

PY - 2007/9/21

Y1 - 2007/9/21

N2 - Athabasca Valles is a young outflow channel system on Mars that may have been carved by catastrophic water floods. However, images acquired by the High-Resolution Imaging Science Experiment camera onboard the Mars Reconnaissance Orbiter spacecraft reveal that Athabasca Valles is now entirely draped by a thin layer of solidified lava - the remnant of a once-swollen river of molten rock. The lava erupted from a fissure, inundated the channels, and drained downstream in geologically recent times. Purported ice features in Athabasca Valles and its distal basin, Cerberus Palus, are actually composed of this lava. Similar volcanic processes may have operated in other ostensibly fluvial channels, which could explain in part why the landers sent to investigate sites of ancient flooding on Mars have predominantly found lava at the surface instead.

AB - Athabasca Valles is a young outflow channel system on Mars that may have been carved by catastrophic water floods. However, images acquired by the High-Resolution Imaging Science Experiment camera onboard the Mars Reconnaissance Orbiter spacecraft reveal that Athabasca Valles is now entirely draped by a thin layer of solidified lava - the remnant of a once-swollen river of molten rock. The lava erupted from a fissure, inundated the channels, and drained downstream in geologically recent times. Purported ice features in Athabasca Valles and its distal basin, Cerberus Palus, are actually composed of this lava. Similar volcanic processes may have operated in other ostensibly fluvial channels, which could explain in part why the landers sent to investigate sites of ancient flooding on Mars have predominantly found lava at the surface instead.

UR - http://www.scopus.com/inward/record.url?scp=34648824578&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34648824578&partnerID=8YFLogxK

U2 - 10.1126/science.1143315

DO - 10.1126/science.1143315

M3 - Article

C2 - 17885126

AN - SCOPUS:34648824578

VL - 317

SP - 1709

EP - 1711

JO - Science

JF - Science

SN - 0036-8075

IS - 5845

ER -