TY - JOUR
T1 - Two-stage development of the lunar farside highlands crustal formation
AU - Yamamoto, Keiko
AU - Haruyama, Junichi
AU - Kobayashi, Shingo
AU - Ohtake, Makiko
AU - Iwata, Takahiro
AU - Ishihara, Yoshiaki
AU - Hasebe, Nobuyuki
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The correlation between the spatial patterns of surface Thorium (Th) abundance measured by SELENE GRS data and the crustal thickness from the GRAIL gravity field and LRO LOLA data is investigated in the lunar highland area. Our analysis reveals that there are several areas of local minima for Th abundance exhibiting similar values but different crustal thicknesses. To explain the result, we propose a two-stage scenario for crustal formation. In the first stage, plural thin plateaus form on the surface of the lunar magma ocean (LMO), which corresponds to the observed surface Th distribution. In the second stage, a global crust with dichotomy forms by solidification of the LMO under the plateaus.
AB - The correlation between the spatial patterns of surface Thorium (Th) abundance measured by SELENE GRS data and the crustal thickness from the GRAIL gravity field and LRO LOLA data is investigated in the lunar highland area. Our analysis reveals that there are several areas of local minima for Th abundance exhibiting similar values but different crustal thicknesses. To explain the result, we propose a two-stage scenario for crustal formation. In the first stage, plural thin plateaus form on the surface of the lunar magma ocean (LMO), which corresponds to the observed surface Th distribution. In the second stage, a global crust with dichotomy forms by solidification of the LMO under the plateaus.
KW - GRAIL
KW - Lunar crustal formation
KW - Lunar crustal thickness
KW - SELENE
KW - Thorium abundance
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UR - http://www.scopus.com/inward/citedby.url?scp=84953637252&partnerID=8YFLogxK
U2 - 10.1016/j.pss.2015.11.002
DO - 10.1016/j.pss.2015.11.002
M3 - Article
AN - SCOPUS:84953637252
SN - 0032-0633
VL - 120
SP - 43
EP - 47
JO - Planetary and Space Science
JF - Planetary and Space Science
ER -