Titlebook: Cratering in Marine Environments and on Ice; Henning Dypvik,Mark J. Burchell,Philippe Claeys Book 2004 Springer-Verlag Berlin Heidelberg 2

commodity

obeisance

拋物線

Structure-filling Sediments of the Wetumpka Marine-target Impact Structure (Alabama, USA)ich was produced by a Late Cretaceous impact into shallow marine water. Wetumpka has distinctive exposed, geologic terrains produced by impact-related processes. These exposed terrains include Wetumpka’s crystalline rim and two sedimentary terrains: (a) an interior unit (resurge unit), and (b) adjac

率直

legislate

Did the Puchezh-Katunki Impact Trigger an Extinction?as a factor in a biotic extinction event. The age of impact is currently regarded as Bajocian (Middle Jurassic), on the basis of palynostratigraphy of crater lake sediments, but there is no significant extinction in the Bajocian. Earlier K-Ar age determinations of impactites compared with a current

sleep-spindles

Cytokines

jovial

嚙齒動(dòng)物

Survivability of Bacteria in Hypervelocity Impacts on Ice the destination planet. The impacts associated with this arrival stage are studied in this paper. To this end, the two-stage light gas gun at the University of Kent has been used to fire bacteria-laden projectiles, at velocities of approximately 5 km s., onto semi-solid nutrient medium, and solid a

夾克怕包裹

Impact Cratering of Icy and Rocky Targets in Planetary Sciences and in the Laboratoryes alongside the traditional impacts on rocky surfaces. The data are given ordered in terms of the parent solar system bodies, thus are related to solar system bodies of different mass, density, gravity, orbital velocity, and surface composition. The results of some of the most interesting impact ev