Long-Lived Volcanism on the Lunar Farside Revealed by SELENE Terrain Camera

Author:

Haruyama Junichi12345,Ohtake Makiko12345,Matsunaga Tsuneo12345,Morota Tomokatsu12345,Honda Chikatoshi12345,Yokota Yasuhiro12345,Abe Masanao12345,Ogawa Yoshiko12345,Miyamoto Hideaki12345,Iwasaki Akira12345,Pieters Carle M.12345,Asada Noriaki12345,Demura Hirohide12345,Hirata Naru12345,Terazono Junya12345,Sasaki Sho12345,Saiki Kazuto12345,Yamaji Atsushi12345,Torii Masaya12345,Josset Jean-Luc12345

Affiliation:

1. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshino-dai, Sagamihara, Kanagawa 229-8510, Japan.

2. Center for Global Environmental Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.

3. University Museum, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.

4. Department of Aerospace and Astronautics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

5. Department of Geological Sciences, Brown University, Providence, RI 02912, USA.

Abstract

We determined model ages of mare deposits on the farside of the Moon on the basis of the crater frequency distributions in 10-meter-resolution images obtained by the Terrain Camera on SELENE (Selenological and Engineering Explorer) (Kaguya). Most mare volcanism that formed mare deposits on the lunar farside ceased at ∼3.0 billion years ago, suggesting that mare volcanism on the Moon was markedly reduced globally during this period. However, several mare deposits at various locations on the lunar farside also show a much younger age, clustering at ∼2.5 billion years ago. These young ages indicate that mare volcanism on the lunar farside lasted longer than was previously considered and may have occurred episodically.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference30 articles.

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3. G. Neukum, B. A. Ivanov, in Hazards Due to Comets and Asteroids, T. Gehrels, Ed. (Univ. of Arizona Press, Tucson, AZ, 1994), pp. 359–415.

4. Analysis of crater distributions in mare units on the lunar far side

5. The Geologic History of the Moon. U.S. Geological Survey Professional Paper 1987

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