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Mercury’s geochronology revised by applying Model Production Function to Mariner 10 data: Geological implications

Massironi, Matteo and Cremonese, Matteo and Marchi, Simone and Martellato, Elena and Mottola, Stefano and Wagner, Roland (2009) Mercury’s geochronology revised by applying Model Production Function to Mariner 10 data: Geological implications. Geophysical Research Letters, 36, pp. 21204-21209. The American Geophysical Union. DOI: 10.1029/2009GL040353.

Full text not available from this repository.

Abstract

Model Production Function (MPF) chronology uses dynamic models of the Main Belt Asteroids (MBAs) and Near Earth Objects (NEOs) to derive the impactor flux to a target body. This is converted into the crater size-frequency distribution for a specific planetary surface, and calibrated using the radiometric ages of different regions of the Moon’s surface. This new approach has been applied to the crater counts on Mariner 10 images of the highlands and of several large impact basins on Mercury. MPF estimates for the plains show younger ages than those of previous chronologies. Assuming a variable uppermost layering of the Hermean crust, the age of the Caloris interior plains may be as young as 3.59 Ga, in agreement with MESSENGER results that imply that long-term volcanism overcame contractional tectonics. The MPF chronology also suggests a variable projectile flux through time, coherent with the MBAs for ancient periods and then gradually comparable also to the NEOs.

Document Type:Article
Title:Mercury’s geochronology revised by applying Model Production Function to Mariner 10 data: Geological implications
Authors:
AuthorsInstitution or Email of Authors
Massironi, MatteoDipartimento di Geoscienze Univ. Padova
Cremonese, MatteoINAF Osservatorio Astronomico di Padova
Marchi, SimoneDipartimento di Astronomia Univ. Padova
Martellato, ElenaCISAS Univ. Padova
Mottola, StefanoUNSPECIFIED
Wagner, RolandUNSPECIFIED
Date:7 November 2009
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:36
DOI:10.1029/2009GL040353
Page Range:pp. 21204-21209
Publisher:The American Geophysical Union
Status:Published
Keywords:Planets and satellites: individual (Mercury) – solar system: general
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Asteroiden und Kometen (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Institute of Planetary Research > Planetary Geology
Deposited By: Dr.phys. Stefano Mottola
Deposited On:06 Jan 2010 13:26
Last Modified:26 Mar 2013 13:13

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