RT Journal Article
T1 The South Pole-Aitken basin region, Moon: GIS-basedgeologic investigation using Kaguya elemental information
A1 King, Kyeong Ja
A1 Dohm, James M.
A1 Williams, Jean-Pierre
A1 Ruiz Pérez, Javier
A1 Hare, Trent M.
A1 Hasebe, Nobuyuki
A1 Karouji, Yuzuru
A1 Kobayashi, Shingo
A1 Hareyama, Makoto
A1 Shibamura, Eido
A1 Kobayashi, Masanori
A1 Uston, Claude d'
A1 Gasnault, Olivier
A1 Forni, Olivier
A1 Maurice, Sylvestre
AB Using Geographic Information Systems (GIS), we performed comparative analysis among stratigraphic information and the Kaguya (SELENE) GRS data of the 2500-km-diameter South Pole-Aitken (SPA) basin and its surroundings. Results indicate chat the surface rock materials (including ancient crater  materials, mare basalts, and possible SPA impact melt) are average to slightly elevated in K and Th with respect to the  rest of the Moon. Also, this study demonstrates that K and  Th have not significantly changed since the formation of  PA. The elemental signatures of the impact basin of Fe, Ti, Si, O through time include evidence for resurfacing by ejecta materials and late-stage volcanism. The oldest surfaces of SPA are found to be oxygen-depleted during the  heavy bombardment period relative to later stages of  geologic development, followed by both an increase in  silicon and oxygen, possibly due to ejecta sourced from  outside of SPA, and subsequent modification due to mare  basaltic volcanism, which increased iron and titanium within  SPA. The influence of the distinct geologic history of SPA  and surroundings on the mineralogic and elemental abundances  is evident as shown in our investigation.
PB Elsevier
SN 0273-1177
YR 2012
FD 2012
LK https://hdl.handle.net/20.500.14352/44734
UL https://hdl.handle.net/20.500.14352/44734
LA eng
DS Docta Complutense
RD 7 abr 2025