Geothermics is an area of geophysics that studies the thermal state and history of the interior
of the Earth. Solar heat penetrates only into the topmost layers of the Earth's crust. Diurnal …

Metal-rich fluids that circulate in magmatic-hydrothermal environments form a wide array of
economically significant ore deposits. Unravelling the origins and evolution of these fluids is …

Deep‐sea hydrothermal systems provide ideal conditions for prebiotic reactions and ancient
metabolic pathways and, therefore, might have played a pivotal role in the emergence of life …

This chapter focuses almost exclusively on marine evaporites and in particular on how the
chemistry of seawater is reflected in the mineralogy and facies distribution of deposits in …

It is generally thought that the sulfate reduction metabolism is ancient and would have been
established well before the Neoarchean. It is puzzling, therefore, that the sulfur isotope …

Hydrothermal vent deposits form on the seafloor as a result of cooling and mixing of hot
hydrothermal fluids with cold seawater. Amongst the major sulfide and sulfate minerals that …

Many ancient volcanogenic massive sulfides (VMS) deposits underwent various degrees of
deformation and metamorphism, which modified the primary orebody geometries and sulfide …

Volcanic-hosted massive sulfide (VHMS) deposits, the ancient analogues of “black smoker”
deposits that currently form on the seafloor, are the products of complex mineral systems …

We report in situ quadruple sulfur isotope analysis (32 S, 33 S, 34 S and 36 S) of a pyritized
microbial mat from the∼ 3480 Ma Dresser Formation, Pilbara Craton, Western Australia …

Bedded barites from the Barberton greenstone belt (South Africa and Swaziland) preserve a
comprehensive record of atmospheric, oceanic and microbial processes involved in the …