Ejecta - an overview | ScienceDirect Topics Ejecta refers to the material expelled from a target during an impact event, which can include coherent ejecta blankets, breccias, and melt rocks This material is categorized into proximal ejecta, which preserves target stratigraphy, and distal ejecta, typically composed of fine-grained rock and mineral fragments
Ejecta from impact craters - ScienceDirect The ejecta model, along with the constants given in Table 3, can be used to calculate the ejecta velocity distribution for a given impact event From those follow a number of important features, including range of ejecta, regolith on small bodies, momentum magnification for asteroid deflection considerations, and so on
Ejecta - an overview | ScienceDirect Topics Ejecta refers to the outflow expelled during and shortly after the collision of two neutron stars, consisting of various components such as dynamical ejecta driven by tidal forces and shocks, as well as post-merger ejecta from processes like disk winds These components exhibit different speeds and interactions, with the majority moving at velocities between 0 1c and 0 3c AI generated
A conceptual model for the formation of ramparts on Martian impact . . . In this model, impact events produce ejecta curtains that advance radially at increasingly higher velocity outward excavating and roughening the surface as they impact This produces an inertia-driven, ground-hugging ejecta flow composed of primary and secondary ejecta
Effects of surface and subsurface water ice on spatial distributions of . . . Ejecta patterns observed on terrestrial planets can be ballistic, consistent with the simple ballistic emplacement model, or multi-flow (layered, rampart, lobate), suggestive of some different type of emplacement mechanism Laboratory experiments of impact cratering shed light on the processes controlling the styles of ejecta emplacement