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Arabia Terra, Mars: tectonic and palaeoclimatic evolution of a remarkable sector of martian lithosphere

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Anguita, Francisco and Anguita, Jorge and Castilla Cañamero, Gabriel and Casa, Miguel Ángel de la and Domínguez, José María and Herrera, R. and Llanes Estrada, Pilar and López, Mónica and Martínez, Vicente (1997) Arabia Terra, Mars: tectonic and palaeoclimatic evolution of a remarkable sector of martian lithosphere. Earth, Moon and Planets, 77 . pp. 55-72. ISSN 0167-9295

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Official URL: http://link.springer.com/journal/11038



Abstract

Abstract. A regional geologic study of Arabia Terra, a densely cratered area of Mars northern
hemisphere, has revealed the individuality of this province. This is best expressed by an equatorial
belt with a crater age distinctly younger as compared to the northern part of Arabia Terra and to
Noachis Terra to the south. We interpret this as an incipient back-arc system provoked by the subduction
of Mars lowlands under Arabia Terra during Noachian times. The regional fracture patterns
are also best explained in this manner, making it unnecessary to appeal to a rotational instability of
the planet, which is not supported by the palaeoclimatic indicators in the area. This model could be
the first regional-scale confirmation of Sleep’s (1994) hypothesis of a limited plate consumption as
an explanation of the martian dichotomy.


Item Type:Article
Uncontrolled Keywords:Mars, Tectonics, Palaeoclimate, Plate tectonics
Subjects:Sciences > Geology > Geodynamics
ID Code:25649
Deposited On:29 May 2014 12:35
Last Modified:29 May 2014 12:35

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