10Selenium is an essential trace element needed for all living organisms. Despite its
essentiality, selenium is a potential toxic element to natural ecosystems due to its …

Selenium is an essential micronutrient required for natural biological systems such as anti-
oxidative systems. Despite such beneficial aspect, contamination of selenium and its …

Selenium is an essential trace element that is involved in the synthesis of various
selenoproteins in higher animals including humans. Twenty five selenoproteins have been …

The excess of highly siderophile (iron-loving) elements (HSEs) and the chondritic ratios of
most HSEs in the bulk silicate Earth (BSE) may reflect the accretion of a chondritic 'late …

China's energy dependents on coal due to the abundance and low cost of coal. Coal
provides a secure and stable energy source in China. Over-dependence on coal results in …

BACKGROUND Rocks from the Earth's mantle occur in a wide range of geologic settings (1)
as peridotite massifs, now referred to as orogenic peridotites;(2) as spinel-(rarely garnet) …

Selenium levels and speciation in environmental compartments and the dynamics of global
Se cycling continue to be a subject of intense interest largely because Se is both an …

Selenium (Se) is an important micronutrient and essential trace element for both humans
and animals, which exist in the environment ubiquitously. Selenium deficiency is an …

Cratonic lithospheric mantle is composed of predominantly refractory materials that formed
at higher mantle potential temperatures (TP) than recorded in non-cratonic peridotites. It also …

Earth's volatile element abundances (for example, sulfur, zinc, indium and lead) provide
constraints on fundamental processes, such as planetary accretion, differentiation and the …