Abstract
Martian layered ejecta morphologies are characterized using a new preservation classification system and through measurement of ejecta mobility (EM) ratios. EM, the ratio of ejecta extent to crater radius, is believed to provide information about ejecta material fluidity during emplacement. This study compares EM and preservation classification to determine if subsurface volatile concentrations have changed measurably over time. Results from both regional and local analyses suggest that concentrations of subsurface volatiles have remained approximately constant at the depths and over the time periods recorded by these craters.
| Original language | English (US) |
|---|---|
| Journal | Geophysical Research Letters |
| Volume | 31 |
| Issue number | 5 |
| State | Published - Mar 16 2004 |
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ASJC Scopus subject areas
- Earth and Planetary Sciences (miscellaneous)
Cite this
Martian subsurface volatile concentrations as a function of time : Clues from layered ejecta craters. / Barlow, Nadine.
In: Geophysical Research Letters, Vol. 31, No. 5, 16.03.2004.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Martian subsurface volatile concentrations as a function of time
T2 - Clues from layered ejecta craters
AU - Barlow, Nadine
PY - 2004/3/16
Y1 - 2004/3/16
N2 - Martian layered ejecta morphologies are characterized using a new preservation classification system and through measurement of ejecta mobility (EM) ratios. EM, the ratio of ejecta extent to crater radius, is believed to provide information about ejecta material fluidity during emplacement. This study compares EM and preservation classification to determine if subsurface volatile concentrations have changed measurably over time. Results from both regional and local analyses suggest that concentrations of subsurface volatiles have remained approximately constant at the depths and over the time periods recorded by these craters.
AB - Martian layered ejecta morphologies are characterized using a new preservation classification system and through measurement of ejecta mobility (EM) ratios. EM, the ratio of ejecta extent to crater radius, is believed to provide information about ejecta material fluidity during emplacement. This study compares EM and preservation classification to determine if subsurface volatile concentrations have changed measurably over time. Results from both regional and local analyses suggest that concentrations of subsurface volatiles have remained approximately constant at the depths and over the time periods recorded by these craters.
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M3 - Article
VL - 31
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 5
ER -