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Showing 1–5 of 5 results
Advanced filters: Author: Caleb I. Fassett Clear advanced filters

  • Observations from the Lunar Orbiter Laser Altimeter reveal the Moon’s Shackleton crater to be an ancient, unusually well-preserved simple crater whose interior walls are younger than its floor and rim; the relative brightness of the floor at 1,064 nanometres is most readily explained by minimal volatile accumulation since crater formation and decreased space weathering due to permanent shadow.

    • Maria T. Zuber
    • James W. Head
    • H. Jay Melosh
    Research
    Nature
    Volume: 486, P: 378-381

  • High-resolution data from the Mars Reconnaissance Orbiter are used to identify clay-rich fluvial-lacustrine sediments in an open lake basin on Mars near the 45-km-diameter Jezero crater. The basin contains sedimentary deposits of hydrous minerals sourced from a smectite-rich catchment in the Nili Fossae region, which are well suited for the sequestration and preservation of organic material.

    • Bethany L. Ehlmann
    • John F. Mustard
    • Scott L. Murchie
    Research
    Nature Geoscience
    Volume: 1, P: 355-358

  • Analysis of craters on Mercury’s oldest, most heavily cratered terrains shows that they were formed 4.0–4.1 billion years ago, and that the planet’s previous geological history was erased, most probably by voluminous volcanism, which may have been triggered by heavy asteroidal bombardment at that time.

    • Simone Marchi
    • Clark R. Chapman
    • Robert G. Strom
    Research
    Nature
    Volume: 499, P: 59-61

  • About 4 billion years ago, the terrestrial planets were bombarded by asteroids following an orbital shake-up of the outer Solar System. Lunar samples, planetary cratering records and dynamical models piece together an increasingly coherent view of this bombardment interval.

    • Caleb I. Fassett
    • David A. Minton
    Reviews
    Nature Geoscience
    Volume: 6, P: 520-524