Long-wavelength topography on Mercury is not from folding of the lithosphere

Autor:	Jonathan P. Kay, Andrew J. Dombard
Rok vydání:	2019
Předmět:	010504 meteorology & atmospheric sciences chemistry.chemical_element Astronomy and Astrophysics Geophysics 01 natural sciences Mercury (element) Long wavelength chemistry Space and Planetary Science Lithosphere 0103 physical sciences 010303 astronomy & astrophysics Geology 0105 earth and related environmental sciences
Zdroj:	Icarus. 319:724-728
ISSN:	0019-1035
DOI:	10.1016/j.icarus.2018.09.040
Popis:	Previous work suggested that the lithosphere of Mercury could undergo folding in response to global contraction, and indeed observations from the MESSENGER mission revealed several regions where long-wavelength topography is present. Here, we test, via finite-element simulations that use a more realistic rheological model than that earlier work, lithospheric folding as a formation mechanism for long-wavelength topography on Mercury from interior secular cooling over the last 3.8 Gyr. This radial contraction has been estimated from geological observations to be less than 10 km, which translates into small amounts of horizontal shortening of
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a06495a7a4b2604c7acddb98d4493400 https://doi.org/10.1016/j.icarus.2018.09.040 Zobrazit plný text záznamu Full Text from ScienceDirect