Abstract The Archean era (4 to 2.5 billion years ago, Ga) yielded rocks that include the
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …

It is often acknowledged that the search for life on Mars might produce false positive results,
particularly via the detection of objects, patterns or substances that resemble the products of …

This textbook is a complete rewrite, and expansion of Hugh Rollinson's highly successful
1993 book Using Geochemical Data: Evaluation, Presentation, Interpretation. Rollinson and …

The nine editions of Stable Isotope Geochemistry have appeared over a time span of nearly
50 years. The first edition (1973) appeared as a slim book of 135 pages. Due to the rapid …

It is generally accepted that photosynthetic marine planktonic bacteria were responsible for
the oxidation of dissolved ferrous iron (Fe (II)) and the subsequent deposition of iron …

The surface temperature of a planet is one of the key parameters that define its potential
habitablity. On Earth, the temperature regime sustained by the seawater column provided …

We present a refined approach for acquiring sulfur (S) isotope compositions (33 S/32 S, 34
S/32 S) in apatite by secondary ion mass spectrometry (SIMS), including the characterisation …

The availability of nutrients in seawater, such as dissolved phosphorus (P), is thought to
have regulated the evolution and activity of microbial life in Earth's early oceans. Marine …

Iron isotope compositions (expressed as δ 56 Fe) in sedimentary pyrite have been widely
used as tracers of redox and chemical evolution of the ocean through geological time …

Pyrrhotite and pentlandite are the most common Fe sulfide minerals in magmatic ore
deposits and meteorites. Multiple S isotopes pairing with Fe isotopes of bulk Fe sulfides …