Bmd955
发表于 2025-3-30 10:35:41
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burnish
发表于 2025-3-30 12:54:16
“Pseudotachylites” in Large Impact Structures melt ., and separation from shock melt and other impactogenic or tectonically produced breccia types. It is essential to deal with these materials as carefully as possible, as they do have the potential to contribute to the understanding of the impact cratering process and have implications regardi
Endemic
发表于 2025-3-30 18:37:37
The Mechanics of Pseudotachylite Formation in Impact Events such thick masses ought to preclude melting by reducing the friction between sliding rock masses. I propose that one possible solution to this conundrum is that the melt produced by sliding on narrow shear zones is extruded into the adjacent country rock, thus keeping the sliding surfaces narrow, w
使服水土
发表于 2025-3-30 23:05:13
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cochlea
发表于 2025-3-31 01:26:21
Redistribution of Lithologies in Impact-induced Dikes of Impact Structuresear them, allows reconstructing various features of an impact structure, and some conditions of its formation (a character of brittle deformation of host rocks, a depth of crater excavation and penetration of fissures into its true and apparent floor, a mode of clast transportation by fluidized syst
Callus
发表于 2025-3-31 06:11:46
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sed-rate
发表于 2025-3-31 12:14:48
BP and Oasis Impact Structures, Libya: Remote Sensing and Field Studiesstinct series of hills of up to about 30 m elevation above the surrounding desert, with rocks dipping at 30 to 50° outwards. Some parts of the rim are characterized by intense folding and faulting. The “outer ring” is a discontinuous ring of low hills with 1–2 m average elevation, dipping at 10° inw
DENT
发表于 2025-3-31 14:39:54
Late Modification-Stage Tectonic Deformation of the Popigai Impact Structure, Russiaical example, an intensely fractured impact melt body was mapped at the 1:16,000 scale. Local fracture deformations originated during the compaction of strongly inhomogeneous sequences of impact rocks, whereas block faulting has been caused by both regional tectonic movements, i.e., the uplifting of