When this precipitate was analyzed using XPS and ESEM-EDS it revealed the presence of likely iron sulfides, or at least spatially associated Fe and S, and localized concentrations of common aluminosilicate elements (Al, K, Fe, and Mg), which is a composition that has been documented in association with Ediacaran fossil preservation. Decay experiments involving bacterial mats and organic-rich sands generated a black ring extending radially from the decaying carcasses. Arthropod larvae that decayed on top of a cyanobacterial mat demonstrated higher quality preservation of fine-scale anatomy than larvae that decayed in the absence of a mat. Although this model has been substantiated by the discovery of abundant microbially induced sedimentary structures (MISS) and pyrite veneers in close association with Ediacaran fossils, it has not been tested previously by experimental taphonomic studies under controlled laboratory conditions. This model explains the precipitation of authigenic iron sulfide minerals on, and around, decaying carcasses in association with microbial mats, cementing the sediment as a sole veneer and retaining the external morphology of the organism in relief on the upper and lower surface of coarse-grained sandy event beds. Details of the Death Mask armor piece in Mass Effect 2 (PlayStation 3, PS3, Xbox 360, PC, Windows), including full details on its effects and where it can be found.

As one of the most famous weapons in Mass Effect, M8-Avenger rifle couldn’t have escaped one 3D designer’s will to have it in 3D printing form. This study represents a first attempt to observe soft-tissue decay in association with microbial mats, in order to recreate the death-mask model proposed for terminal Neoproterozoic Lagerstätten. Very often the protagonist, Commander Shepard, has to make use of the M8-Avenger assault weapon to take down his foes.

Mass effect 2 death mask