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Can I read The history of global strain and geodynamics on Mars on EtoBox?
The history of global strain and geodynamics on Mars by J.C. Andrews-Hanna; A. Broquet is a Physics and Astronomy article available to read on EtoBox.
What is The history of global strain and geodynamics on Mars about?
The tectonic record of Mars is dominated by compressional wrinkle ridges on volcanic surfaces, and these structures have been widely used as a record of tectonic and geodynamic evolution. This study analyzes the density of compressional tectonic structures and inferred strain as functions of time, using the lengths and heights of compressional ridges together with geologic estimates of surface age. Our analyses confirm an apparent peak in compressional strain in the late Noachian and early Hesperian, and comparatively lower values before and after. The lower tectonic strain in the early and middle Noachian relative to the early Hesperian reflects the incompleteness of the ancient compressional tectonic record of strain, as older surfaces should accumulate more strain than younger surfaces. This strain deficit necessitates other means of accommodating contractional strain in the ancient crust, including distributed strain and small-scale faulting. The abrupt decrease in the accumulated tectonic strain and strain rate after the early Hesperian reflects a rapid episode of global contraction followed by much lower rates, in conflict with models of steady-state mantle evolution. The dec
Who reads The history of global strain and geodynamics on Mars?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- J.C. Andrews-Hanna; A. Broquet
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)