Lunar farside Th distribution measured by Kaguya gamma-ray spectrometer

Shingo Kobayashi; Yuzuru Karouji; Tomokatsu Morota; Hiroshi Takeda; Nobuyuki Hasebe; Makoto Hareyama; Masanori Kobayashi; Eido Shibamura; Naoyuki Yamashita; Claude d'Uston; Olivier Gasnault; Olivier Forni; Robert C. Reedy; Kyeong Ja Kim; Yoshiaki Ishihara

doi:10.1016/j.epsl.2012.05.007

Lunar farside Th distribution measured by Kaguya gamma-ray spectrometer

Shingo Kobayashi^*, Yuzuru Karouji, Tomokatsu Morota, Hiroshi Takeda, Nobuyuki Hasebe, Makoto Hareyama, Masanori Kobayashi, Eido Shibamura, Naoyuki Yamashita, Claude d'Uston, Olivier Gasnault, Olivier Forni, Robert C. Reedy, Kyeong Ja Kim, Yoshiaki Ishihara

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

Kaguya gamma-ray spectrometer measured thorium (Th) distribution on the lunar farside with the highest sensitivity among past gamma-ray remote sensing missions. The newly obtained Th map has revealed that two regions near the equator on the farside have the lowest Th abundances. We found that the variation of the Th abundance perfectly correlates with the crustal thickness in the farside and the southern nearside, and it could be a result of the crystallization of the lunar magma ocean.

Original language	English
Pages (from-to)	10-16
Number of pages	7
Journal	Earth and Planetary Science Letters
Volume	337-338
DOIs	https://doi.org/10.1016/j.epsl.2012.05.007
Publication status	Published - 2012 Jul 1

Keywords

Imbrium ejecta
Lunar crust
Lunar magma ocean
SELENE (Kaguya) gamma-ray spectrometer
Thorium

ASJC Scopus subject areas

Geochemistry and Petrology
Geophysics
Earth and Planetary Sciences (miscellaneous)
Space and Planetary Science

Access to Document

10.1016/j.epsl.2012.05.007

Cite this

Kobayashi, S., Karouji, Y., Morota, T., Takeda, H., Hasebe, N., Hareyama, M., Kobayashi, M., Shibamura, E., Yamashita, N., d'Uston, C., Gasnault, O., Forni, O., Reedy, R. C., Ja Kim, K., & Ishihara, Y. (2012). Lunar farside Th distribution measured by Kaguya gamma-ray spectrometer. Earth and Planetary Science Letters, 337-338, 10-16. https://doi.org/10.1016/j.epsl.2012.05.007

@article{502d0bf3f00a41439fc19fbbffd5511b,

title = "Lunar farside Th distribution measured by Kaguya gamma-ray spectrometer",

abstract = "Kaguya gamma-ray spectrometer measured thorium (Th) distribution on the lunar farside with the highest sensitivity among past gamma-ray remote sensing missions. The newly obtained Th map has revealed that two regions near the equator on the farside have the lowest Th abundances. We found that the variation of the Th abundance perfectly correlates with the crustal thickness in the farside and the southern nearside, and it could be a result of the crystallization of the lunar magma ocean.",

keywords = "Imbrium ejecta, Lunar crust, Lunar magma ocean, SELENE (Kaguya) gamma-ray spectrometer, Thorium",

author = "Shingo Kobayashi and Yuzuru Karouji and Tomokatsu Morota and Hiroshi Takeda and Nobuyuki Hasebe and Makoto Hareyama and Masanori Kobayashi and Eido Shibamura and Naoyuki Yamashita and Claude d'Uston and Olivier Gasnault and Olivier Forni and Reedy, {Robert C.} and {Ja Kim}, Kyeong and Yoshiaki Ishihara",

year = "2012",

month = jul,

day = "1",

doi = "10.1016/j.epsl.2012.05.007",

language = "English",

volume = "337-338",

pages = "10--16",

journal = "Earth and Planetary Science Letters",

issn = "0012-821X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Lunar farside Th distribution measured by Kaguya gamma-ray spectrometer

AU - Kobayashi, Shingo

AU - Karouji, Yuzuru

AU - Morota, Tomokatsu

AU - Takeda, Hiroshi

AU - Hasebe, Nobuyuki

AU - Hareyama, Makoto

AU - Kobayashi, Masanori

AU - Shibamura, Eido

AU - Yamashita, Naoyuki

AU - d'Uston, Claude

AU - Gasnault, Olivier

AU - Forni, Olivier

AU - Reedy, Robert C.

AU - Ja Kim, Kyeong

AU - Ishihara, Yoshiaki

PY - 2012/7/1

Y1 - 2012/7/1

N2 - Kaguya gamma-ray spectrometer measured thorium (Th) distribution on the lunar farside with the highest sensitivity among past gamma-ray remote sensing missions. The newly obtained Th map has revealed that two regions near the equator on the farside have the lowest Th abundances. We found that the variation of the Th abundance perfectly correlates with the crustal thickness in the farside and the southern nearside, and it could be a result of the crystallization of the lunar magma ocean.

AB - Kaguya gamma-ray spectrometer measured thorium (Th) distribution on the lunar farside with the highest sensitivity among past gamma-ray remote sensing missions. The newly obtained Th map has revealed that two regions near the equator on the farside have the lowest Th abundances. We found that the variation of the Th abundance perfectly correlates with the crustal thickness in the farside and the southern nearside, and it could be a result of the crystallization of the lunar magma ocean.

KW - Imbrium ejecta

KW - Lunar crust

KW - Lunar magma ocean

KW - SELENE (Kaguya) gamma-ray spectrometer

KW - Thorium

UR - http://www.scopus.com/inward/record.url?scp=84862305290&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862305290&partnerID=8YFLogxK

U2 - 10.1016/j.epsl.2012.05.007

DO - 10.1016/j.epsl.2012.05.007

M3 - Article

AN - SCOPUS:84862305290

SN - 0012-821X

VL - 337-338

SP - 10

EP - 16

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

ER -

Lunar farside Th distribution measured by Kaguya gamma-ray spectrometer

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this