This review of material relevant to the Conference on Biosignature Preservation and
Detection in Mars Analog Environments summarizes the meeting materials and discussions …

Nanoparticles are discrete nanometer (10-9 m)-scale assemblies of atoms. Thus, they have
dimensions between those characteristic of ions (10-10 m) and those of macroscopic …

Iron formations are economically important sedimentary rocks that are most common in
Precambrian sedimentary successions. Although many aspects of their origin remain …

Introduction to Geomicrobiology is a timely and comprehensive overview of how microbial
life has affected Earth's environment through time. It shows how the ubiquity of …

Convective circulation of seawater through oceanic crust at mid-ocean ridges (MOR) and on
ridge flanks has wide-ranging effects on heat transport, the chemical and isotopic …

Abstract Neutrophilic Fe-oxidizing bacteria (FeOB) are often identified by their distinctive
morphologies, such as the extracellular twisted ribbon-like stalks formed by Gallionella …

Abstract Ferromanganese (Fe-Mn) deposits constitute a ubiquitous mineral type in oceanic
settings, with metal (Cu, Ni, Zn, Co, Pt) and rare earth element (REE) enrichments of …

Bacterial cells, growing naturally in freshwater and marine environments or experimentally
in culture, can precipitate a variety of authigenic iron minerals. With the vast majority of …

Seafloor hydrothermal activity at mid-ocean ridges has a major impact on the chemistry of
the oceans [Edmond et al., 1979] and has been responsible for extensive alteration of …

ABSTRACT A number of hydrothermal vent sites exist on the summit of the Loihi Seamount,
a shield volcano that is part of the Hawaiian archipelago. The vents are 1,100 to 1,325 m …