000005173 001__ 5173
000005173 005__ 20220120162127.0
000005173 0247_ $$2DOI$$a10.1016/j.icarus.2020.114202
000005173 037__ $$aSCART-2021-0032
000005173 100__ $$aMatsuyama, I.
000005173 245__ $$aGlobal tectonic patterns of the Moon
000005173 260__ $$c2021
000005173 520__ $$aPlanetary tectonics provide a record of the myriad of processes that shape planetary surfaces and interiors. While there is a long history of mapping and modeling planetary tectonics, stresses from disparate processes are not generally captured by a single model. We present a comprehensive and general stress and tectonics model that can consider multiple stress-generating mechanisms simultaneously. The model is applicable to mass loading with arbitrary geometry, rotational and orbital perturbations, and arbitrary elastic lithosphere thicknesses. This wholistic approach to tectonic modeling has important implications for understanding both lunar evolution and tectonics across the solar system. We apply this model to the Moon, which exhibits a global pattern of thrust faults. The ubiquitous presence of young thrust faults suggests that isotropic contraction plays a dominant role. However, their non-random orientation requires additional stress-generating mechanisms that are not isotropic. Best-fit solutions correspond to models combining isotropic contraction with orbit recession, despinning, and South Pole-Aitken ejecta loading and the corresponding true polar wander. Contraction and despinning assuming an elastic shell with a thinner equatorial region can lead to misfits that are smaller than those assuming a constant thickness elastic shell. The young age of the faults favors recent contraction and recession; however, unrelaxed stresses from older processes combined with recent contractional stresses can also generate young faults. This possibility is supported by the Moon's ability to preserve a fossil figure.
000005173 536__ $$aPRODEX program managed by ESA and BELSPO/$$cPRODEX program managed by ESA and BELSPO/$$fPRODEX program managed by ESA and BELSPO
000005173 594__ $$aNO
000005173 700__ $$aKeane, J.T.
000005173 700__ $$aTrinh, A.
000005173 700__ $$aBeuthe, M.
000005173 700__ $$aWatters, T.R.
000005173 773__ $$n114202$$pIcarus$$v358
000005173 8560_ $$fmikael.beuthe@observatoire.be
000005173 85642 $$ahttps://doi.org/10.1016/j.icarus.2020.114202
000005173 905__ $$apublished in
000005173 980__ $$aREFERD