Mass movement on Vesta at steep scarps and crater rims

K. Krohn, R. Jaumann, K. Otto, T. Hoogenboom, R. Wagner, D. L. Buczkowski, B. Garry, David Williams, R. A. Yingst, J. Scully, M. C. De Sanctis, T. Kneissl, N. Schmedemann, E. Kersten, K. Stephan, K. D. Matz, C. M. Pieters, F. Preusker, T. Roatsch, P. SchenkC. T. Russell, C. A. Raymond

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

The Quadrangles Av-11 and Av-12 on Vesta are located at the northern rim of the giant Rheasilvia south polar impact basin. The primary geologic units in Av-11 and Av-12 include material from the Rheasilvia impact basin formation, smooth material and different types of impact crater structures (such as bimodal craters, dark and bright crater ray material and dark ejecta material). Av-11 and Av-12 exhibit almost the full range of mass wasting features observed on Vesta, such as slump blocks, spur-and-gully morphologies and landslides within craters. Processes of collapse, slope instability and seismically triggered events force material to slump down crater walls or scarps and produce landslides or rotational slump blocks. The spur-and-gully morphology that is known to form on Mars is also observed on Vesta; however, on Vesta this morphology formed under dry conditions.

Original languageEnglish (US)
Pages (from-to)120-132
Number of pages13
JournalIcarus
Volume244
DOIs
StatePublished - Dec 1 2014

Keywords

  • Asteroid vesta
  • Asteroids, surfaces
  • Geological processes
  • Impact processes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'Mass movement on Vesta at steep scarps and crater rims'. Together they form a unique fingerprint.

  • Cite this

    Krohn, K., Jaumann, R., Otto, K., Hoogenboom, T., Wagner, R., Buczkowski, D. L., Garry, B., Williams, D., Yingst, R. A., Scully, J., De Sanctis, M. C., Kneissl, T., Schmedemann, N., Kersten, E., Stephan, K., Matz, K. D., Pieters, C. M., Preusker, F., Roatsch, T., ... Raymond, C. A. (2014). Mass movement on Vesta at steep scarps and crater rims. Icarus, 244, 120-132. https://doi.org/10.1016/j.icarus.2014.03.013