Impact Gardening on Ceres

被引：5
|
作者：
Costello, E. S. [1 ,2 ]
Ghent, R. R. [3 ]
Lucey, P. G. [1 ,2 ]
机构：
[1] Univ Hawaii Manoa, Honolulu, HI 96822 USA
[2] Hawaii Inst Geophys & Planetol, Honolulu, HI USA
[3] Planetary Sci Inst, Tucson, AZ USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 2021年 / 48卷 / 08期
关键词：
asteroid; Ceres; ice; impact gardening; impacts; regolith; SIZE-FREQUENCY DISTRIBUTION; CRATER DEGRADATION; WATER ICE; MODEL; EQUILIBRIUM; EVOLUTION; ORIGIN; MOON;
D O I：
10.1029/2021GL092960
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
We model impact gardening on Ceres and find that it is orders of magnitude less intense than impact gardening on Earth's Moon. At Ceres' equator, gardening is too shallow to compete with sublimation as a control on the depth to ice. At high latitudes, impact gardening will disturb the top centimeter of ice over 1 Ga but could not contribute to the disruption of thick ice deposits. Because impact gardening is weak on Ceres compared to the Moon, we also predict that the meter and smaller scale surface texture of Ceres may be significantly different from the lunar surface. Regolith may be much thinner on Ceres and the top meter may be significantly less dominated by fine-grained regolith material.
引用
收藏
页数：8
相关论文
共 50 条
  • [1] The missing large impact craters on Ceres
    S. Marchi
    A. I. Ermakov
    C. A. Raymond
    R. R. Fu
    D. P. O’Brien
    M. T. Bland
    E. Ammannito
    M. C. De Sanctis
    T. Bowling
    P. Schenk
    J. E. C. Scully
    D. L. Buczkowski
    D. A. Williams
    H. Hiesinger
    C. T. Russell
    [J]. Nature Communications, 7
  • [2] The missing large impact craters on Ceres
    Marchi, S.
    Ermakov, A. I.
    Raymond, C. A.
    Fu, R. R.
    O'Brien, D. P.
    Bland, M. T.
    Ammannito, E.
    De Sanctis, M. C.
    Bowling, T.
    Schenk, P.
    Scully, J. E. C.
    Buczkowski, D. L.
    Williams, D. A.
    Hiesinger, H.
    Russell, C. T.
    [J]. NATURE COMMUNICATIONS, 2016, 7
  • [3] Considerations to Quantify the Impact of Consumer Gardening
    Behe, Bridget
    [J]. HORTSCIENCE, 2016, 51 (09) : S87 - S87
  • [4] The geology of the Kerwan quadrangle of dwarf planet Ceres: Investigating Ceres' oldest, largest impact basin
    Williams, David A.
    Kneissl, T.
    Neesemann, A.
    Mest, S. C.
    Palomba, E.
    Platz, T.
    Nathues, A.
    Longobardo, A.
    Scully, J. E. C.
    Ermakov, A.
    Jaumann, R.
    Buczkowski, D. L.
    Schaefer, M.
    Thangjam, G.
    Pieters, C. M.
    Roatsch, T.
    Preusker, F.
    Marchi, S.
    Schmedemann, N.
    Hiesinger, H.
    Frigeri, A.
    Raymond, C. A.
    Russell, C. T.
    [J]. ICARUS, 2018, 316 : 99 - 113
  • [5] Ceres and the terrestrial planets impact cratering record
    Strom, R. G.
    Marchi, S.
    Malhotra, R.
    [J]. ICARUS, 2018, 302 : 104 - 108
  • [6] Impact Ejecta and Gardening in the Lunar Polar Regions
    Szalay, J. R.
    Pokorny, P.
    Sternovsky, Z.
    Kupihar, Z.
    Poppe, A. R.
    Horanyi, M.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2019, 124 (01) : 143 - 154
  • [7] Impact gardening on Europa and repercussions for possible biosignatures
    E. S. Costello
    C. B. Phillips
    P. G. Lucey
    R. R. Ghent
    [J]. Nature Astronomy, 2021, 5 : 951 - 956
  • [8] School gardening in Bhutan: Evaluating outcomes and impact
    Schreinemachers, Pepijn
    Rai, Bal Bdr
    Dorji, Desang
    Chen, Hsiao-pu
    Dukpa, Thinley
    Thinley, Namgay
    Sherpa, Passang Lhamo
    Yang, Ray-Yu
    [J]. FOOD SECURITY, 2017, 9 (03) : 635 - 648
  • [9] Impact gardening on Europa and repercussions for possible biosignatures
    Costello, E. S.
    Phillips, C. B.
    Lucey, P. G.
    Ghent, R. R.
    [J]. NATURE ASTRONOMY, 2021, 5 (09) : 951 - 956
  • [10] School gardening in Bhutan: Evaluating outcomes and impact
    Pepijn Schreinemachers
    Bal Bdr Rai
    Desang Dorji
    Hsiao-pu Chen
    Thinley Dukpa
    Namgay Thinley
    Passang Lhamo Sherpa
    Ray-Yu Yang
    [J]. Food Security, 2017, 9 : 635 - 648
12345