Lost City found.

TL;DR: Bach et al. as discussed by the authors proposed that low-fluid-flux serpentinization of olivine to serpentine and ferroan brucite is followed by later stages of serpentinisation under more open-system conditions and formation of magnetite by the breakdown of ferro-an Brucite.

TL;DR: In this article, the authors assess the oxidation state of altered ocean crust and estimate the magnitude of microbial biomass production that might be supported by oxidative and nonoxidative alteration, and estimate that 50% of Fe oxidation may be attributed to hydrolysis, producing 4.5 ± 3.0 × 1011 mol H2/yr.

TL;DR: In this article, detailed petrographic, mineral chemical, magnetic and Mosbauer analyses of partially to fully serpentinized peridotites from the Ocean Drilling Program (ODP) Leg 209, Mid-Atlantic Ridge (MAR) 15°N area are presented.

TL;DR: In this paper, the results of a petrographic study of hydrothermally altered peridotites drilled during Ocean Drilling Program (ODP) Leg 209 in the 15°20′N fracture Zone area on the Mid-Atlantic Ridge (MAR) were presented.

TL;DR: In this article, the authors presented estimates of mid-ocean ridge axial heat fluxes and total hydrothermal flux (9 ± 2 × 1012 W) using various geochemical methods.

TL;DR: The first ridge-flank hydrothermal springs were discovered on crust older than 1.7 Ma as mentioned in this paper, and they are venting altered seawater at 25.0 °C along a fault near the summit of Baby Bare outcrop, a high point along a ridge-axis-parallel basement ridge.

TL;DR: The nonlinearity of the calcium ion and magnesium ion gradients indicates that these discharging hydrothermal solutions on the ridge flank are upwelling at the rate of about 1 centimeter per year through the pelagic sediments of the Mounds Field and at about 20 centimeters peryear through the hydrotherMAL mounds themselves.