Evolution of the Rembrandt Impact Basin on Mercury

作者: James W. Head , Scott L. Murchie , Brett W. Denevi , Caleb I. Fassett , Thomas R. Watters

DOI: 10.1126/SCIENCE.1172109

关键词: GrabenPaleontologyGlobal coolingImpact craterFault scarpMercury (element)GeologyVolcanoStructural basinAstrobiologyImpact structure

摘要: MESSENGER’s second Mercury flyby revealed a ~715-kilometer-diameter impact basin, the second-largest well-preserved basin-scale structure known on planet. The Rembrandt basin is comparable in age to Caloris partially flooded by volcanic plains, and displays unique wheel-and-spoke–like pattern of basin-radial basin-concentric wrinkle ridges graben. Stratigraphic relations indicate multistaged infilling deformational history involving successive or overlapping phases contractional extensional deformation. youngest deformation involved formation ~1000-kilometer-long lobate scarp, product global cooling contraction Mercury.

参考文章(0)