COrgel_profilimg

Csilla Orgel

Freie Universität Berlin - Planetology

Doctoral Student

 

Project:

The lunar cratering record provides valuable information about the late accretion history of the inner solar system. However, our understanding of the origin, rate, and timing of the impacting projectiles is far from complete. To learn more about these projectiles, we can examine the crater size–frequency distributions (CSFDs) on the Moon. For example, by comparing the shape of lunar CSFDs with the size–frequency distributions of potential projectile families, like different groups of asteroids, comets, or even ejecta projectiles from the giant impact that formed the Moon. We can potentially identify the origin and composition of the impacting projectiles in the inner solar system. In addition to helping identify these projectiles, the shapes of lunar CSFDs are particularly important for determining crater-based relative and absolute ages of surfaces, because CSFDs are used to define the so-called lunar “production function” (PF) from which these ages are calculated. Also, if any changes to the PF are observed over time, this indicates that more than one impactor population may have formed the lunar cratering record.

 
Publications

2019

Sejourne, A., Costard, F., Swirad, Z. M., Losiak, A., Bouley, S., Smith, I., Balme, M. R., Orgel, C., Ramsdale, J. D., Hauber, E., Conway, S. J., van Gasselt, S., Reiss, D., Johnsson, A., Gallagher, C., Skinner, J. A., Kereszturi, A., Platz, T., 2019: Mapping the northern plains of Mars: using morphotype and distribution of ice-related landforms to understand multiple ice-rich deposits in Utopia Planitia. Journal of Geophysical Research Planets, Vol. 124, Issue 2, pp. 483-503. 10.1029/2018JE005665

Orgel, C., Hauber, E., van Gasselt, S., Reiss, D., Johnsson, A., Ramsdale, J. D., Smith, I., Swirad, Z. M., Wilson, J. T., Sejourne, A., Balme, M. R., Conway, S. J., Costard, F., Eke, V. R., Gallagher, C., Kereszturi, A., Losiak, A., Massey, R. J., Platz, T., Skinner, J. A., Teodoro, L. F. A., 2019: Gridmapping the Northern Plains of Mars: A New Overview of Recent Water- and Ice-Related Landforms in Acidalia Planitia. Journal of Geophysical Research Planets, Vol. 124, Issue 2, pp. 454-482. 10.1029/2018JE005664

Ramsdale, J. D., Balme, M. R., Gallagher, C., Conway, S. J., Smith, I., Hauber, E., Orgel, C., Sejourne, A., Costard, F., Eke, V. R., van Gasselt, S., Johnsson, A., Kereszturi, A., Losiak, A., Massey, R. J., Platz, T., Reiss, D., Skinner, J. A., Swirad, Z. M., Teodoro, L. F. A., Wilson, J. T., 2019: Gridmapping the northern plains of Mars: Geomorphological, Radar and Water-Equivalent Hydrogen results from Arcadia Plantia suggest possible fluvial and volcanic systems overlain by a ubiquitous and heavily degraded ice-rich latitude-dependent mantle. Journal of Geophysical Research Planets, Vol. 124, Issue 2, pp. 504-527. 10.1029/2018JE0055663

2018

Orgel, C., Michael, G., Fassett, C. I., van der Bogert, C. H., Riedel, C., Kneissl, T., Hiesinger, H., 2018: Ancient Bombardment of the Inner Solar System: Reinvestigation of the "Fingerprints" of Different Impactor Populations on the Lunar Surface. Journal of Geophysical Research: Planets, Vol. 123, pp. 748-762. 10.1002/2017JE005451

Riedel, C., Michael, G., Kneissl, T., Orgel, C., Hiesinger, H., van der Bogert, C. H., 2018: A New Tool to Account for Crater Obliteration Effects in Crater SizeFrequency Distribution Measurements.  Earth and Space Science, Vol. 5, pp. 258-267. 10.1002/2018EA000383

Ivanov, M. A., Hiesinger, H., van der Bogert, C. H., Orgel, C., Paskert, J. H., Head, J. W., 2018: Geologic History of the Northern Portion of the South Pole-Aitken Basin on the Moon. Journal of Geophysical Research: Planets, Vol. 123, pp. 2585-2612. 10.1029/2018JE005590