Topography of the Northern Hemisphere of Mercury from MESSENGER Laser Altimetry

被引：147

作者：

Zuber, Maria T. ^{[1
]}

Smith, David E. ^{[1
]}

Phillips, Roger J. ^{[2
]}

Solomon, Sean C. ^{[3
]}

Neumann, Gregory A. ^{[4
]}

Hauck, Steven A., II ^{[5
]}

Peale, Stanton J. ^{[6
]}

Barnouin, Olivier S. ^{[7
]}

Head, James W. ^{[8
]}

Johnson, Catherine L. ^{[9
]}

Lemoine, Frank G. ^{[4
]}

Mazarico, Erwan ^{[1
,4
]}

Sun, Xiaoli ^{[4
]}

Torrence, Mark H. ^{[4
,10
]}

Freed, Andrew M. ^{[11
]}

Klimczak, Christian ^{[3
]}

Margot, Jean-Luc ^{[12
]}

Oberst, Juergen ^{[13
]}

Perry, Mark E. ^{[7
]}

McNutt, Ralph L., Jr. ^{[7
]}

Balcerski, Jeffrey A. ^{[5
]}

Michel, Nathalie ^{[5
]}

Talpe, Matthieu J. ^{[1
]}

Yang, Di ^{[1
]}

机构：

[1] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA

[2] SW Res Inst, Planetary Sci Directorate, Boulder, CO 80302 USA

[3] Carnegie Inst Sci, Dept Terr Magnetism, Washington, DC 20015 USA

[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[5] Case Western Reserve Univ, Dept Earth Environm & Planetary Sci, Cleveland, OH 44106 USA

[6] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[7] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[8] Brown Univ, Dept Geol Sci, Providence, RI 02912 USA

[9] Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada

[10] Stinger Ghaffarian Technol Inc, Greenbelt, MD 20770 USA

[11] Purdue Univ, Dept Earth & Atmospher Sci, W Lafayette, IN 47907 USA

[12] Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90095 USA

[13] German Aerosp Ctr, Inst Planetary Res, D-12489 Berlin, Germany

来源：

SCIENCE | 2012年 / 336卷 / 6078期

关键词：

LOBATE SCARPS; CALORIS BASIN; FLYBYS; SURFACE; GEOLOGY; SHAPE; VIEW; MARS;

D O I：

10.1126/science.1218805

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Laser altimetry by the MESSENGER spacecraft has yielded a topographic model of the northern hemisphere of Mercury. The dynamic range of elevations is considerably smaller than those of Mars or the Moon. The most prominent feature is an extensive lowland at high northern latitudes that hosts the volcanic northern plains. Within this lowland is a broad topographic rise that experienced uplift after plains emplacement. The interior of the 1500-km-diameter Caloris impact basin has been modified so that part of the basin floor now stands higher than the rim. The elevated portion of the floor of Caloris appears to be part of a quasi-linear rise that extends for approximately half the planetary circumference at mid-latitudes. Collectively, these features imply that long-wavelength changes to Mercury's topography occurred after the earliest phases of the planet's geological history.

引用

页码：217 / 220

页数：5

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