Molybdenum is an essential trace element for human, animal and plant health and has
played an important part in the evolution of life on earth. Nonetheless, exposure to the …

The biogeochemical cycling of metals in natural systems is often accompanied by stable
isotope fractionation which can now be measured due to recent analytical advances. In …

“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 concentration and isotope composition of molybdenum (Mo) in sediments and
sedimentary rocks are widely used proxies for anoxic conditions in the water column of …

We present molybdenum isotope and concentration data from 14 sites in the eastern Pacific
from the central California to the Peru margin. The environments studied have been chosen …

The cycling of iron (Fe) is often closely linked with that of carbon, nitrogen, phosphorus and
manganese. Therefore, alterations in the Fe cycle may be indicative of concurrent overall …

Most geochemical proxies and models of atmospheric evolution suggest that the amount of
free O2 in Earth's atmosphere stayed below 10− 5 present atmospheric level (PAL) until the …

Copper isotopes may prove to be a useful tool for investigating bacteria–metal interactions
recorded in natural waters, soils, and rocks. However, experimental data which attempt to …

Phytoplankton productivity and export sequester climatically significant quantities of
atmospheric carbon dioxide as particulate organic carbon through a suite of processes …

The global marine distributions of Cd and phosphate are closely correlated, which has led to
Cd being considered as a marine micronutrient, despite its toxicity to life. The explanation for …