The silicon isotope composition of biogenic silica (δ 30 Si BSi) in the ocean is a function of
the δ 30 Si of the available dissolved Si (DSi; H 2 SiO 4), the degree of utilisation of the …

Abstract The Permian Chert Event (PCE) was an unusual global chert accumulation that
reflects tectonic–climatic–environmental changes during the late Paleozoic. South China …

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 …

Uncovers the Key Role Microbes Play in the Transformation of Oxidizable and Reducible
MineralsMany areas of geomicrobial processes are receiving serious attention from …

Most research on the global Si cycle has focused nearly exclusively on weathering or the
oceanic Si cycle and has not explored the complexity of the terrestrial biogeochemical cycle …

The terrestrial sediment record indicates that the Earth's climate varied drastically in the
Precambrian era (before 550 million years ago), ranging from surface temperatures similar …

Documented variations in the isotopic compositions of some chemical elements are
responsible for expanded uncertainties in the standard atomic weights published by the …

Silicon (Si) released as H 4 SiO 4 by weathering of Si-containing solid phases is partly
recycled through vegetation before its land-to-rivers transfer. By accumulating in terrestrial …

Techniques for the purification of Si for the determination of its natural stable isotopic
composition have in the past been based on the requirements for gas-source mass …

This study presents lithium, magnesium and silicon isotope ratios from pore waters and soils
from a well-characterised Histic Andosol in south-west Iceland. The soil δ7Li composition …