The atmosphere of the Archean eon—one-third of Earth's history—is important for
understanding the evolution of our planet and Earth-like exoplanets. New geological proxies …

“The Answer to the Great Question... Of Life, the Universe and Everything... Is... Forty-two,”
said Deep Thought, with infinite majesty and calm…“I checked it very thoroughly,” said the …

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 …

The emergence and expansion of animal life on Earth represents a dramatic shift in the
structure and complexity of the biosphere. A lack of firm constraints on surface oxygen levels …

Stable carbon and oxygen isotopes (δ18O and δ13C values) and trace elements have been
applied to the study of diagenesis of carbonate rocks for over 50 years. As valuable as these …

The application of Mo isotopes to study geodynamic processes is a rather new development
that has gained considerable momentum over the past few years. Its redox-sensitivity …

Molybdenum preserved in organic-rich shales is a key archive employed in studying Earth's
past oxygenation and Life's evolution. In these shales, positive correlations between Mo and …

The rise of molecular oxygen (O2) in the atmosphere and oceans was one of the most
consequential changes in Earth's history. While most research focuses on the Great …

The enrichment and depletion of redox sensitive trace metals in marine sediments have
been used extensively as paleoredox proxies. The trace metals in shale are comprised of …

Molybdenum isotopes have emerged as novel tracers for high-temperature igneous and
metamorphic processes. The debate remains to what extent different subducted slab …