Abstract The Late Devonian (383-359 Ma) was a time of prolonged climate instability with
catastrophic perturbation of global marine ecosystems at the Frasnian-Famennian (FF) and …

The behaviour of the iconic ichnogenus Chondrites is re-evaluated based on review of
existing literature and analysis of novel data (macroscopic, thin section and ESEM-EDX …

We describe the history and features of the Ladder of Life Detection, a tool intended to guide
the design of investigations to detect microbial life within the practical constraints of robotic …

The search for traces of life is one of the principal objectives of Mars exploration. Central to
this objective is the concept of habitability, the set of conditions that allows the appearance …

Pyrites are widely distributed in marine sediments, the morphology of which is applied as a
proxy to infer the redox conditions of bottom water, and identify diagenetic stages and …

Ironstones and iron-rich limestones regularly occur as components of time-specific intervals
of the Palaeozoic as well as in younger times (Brett et al., 2012--this issue). Silurian …

This chapter summarizes information about ancient hydrocarbon seeps from around the
world. The information is organized into two tables, one comprising both Americas and …

Carbonaceous matter (CM) plays a critical role in the formation of sediment-hosted ore
deposits, but metal partitioning between CM and associated sulfides remains unclear. Here …

For the first time, Nd isotope signatures combined with rare earth element (REE)
concentrations were used in investigations of ancient seep carbonates. The study was …

Despite much effort aimed to better constrain the fossil record of chemosynthesis-based
communities, our understanding of their early evolution remains fragmentary. Until recently …