2,6-Di-tert-butyl-p-cresol, (DBPC), dibenzyl disulfide, (DBDS), and 1,2,3-benzotriazole, (BTA), are additives may be found concomitantly in the matrix of the power transformer oil. DBPC and DBDS act as antioxidants while, BTA is a corrosion inhibitor that protects copper conduct…
"12" Result
Sort By:
Raman spectroscopy has been used to characterise both organic and geological samples in order to build a database for the future characterization of biomarker molecules that are of astrobiological relevance. Characteristic geological features and hydrated minerals recently found…
The toxicity and ubiquitousness of PAHs within different terrestrial environments has been an increasing cause for concern amongst environmental scientists in the last decades, in particular regarding their transport within the soil. In an attempt to understand the role of pure …
The overriding objective of this research was to develop an understanding of Iran's policy environment, within which the country's mining sector operates, in relation to that of the rest of the world. In an effort to diversify the country's economy, the first five-year developme…
Red siliciclastics and evaporites of Permian Nippewalla Group in mid-continental US were deposited in western equatorial Pangea. Previous studies of these rocks record Permian air temperatures as high as 73 °C, saline lake waters with a pH as low as ~1, and sedimentology that sh…
Knowledge of denudation rates over geologic timescales provides important insight into the processes that govern soil formation, the regulation of Earth’s climate, and the evolution of landscapes. Accurately establishing long-term denudation rates is also key to understanding ho…
Climate change is influencing the biogeochemical dynamics of lake systems in northern Canada. These changes may affect the loading and cycling of naturally occurring metal(loid)s and the long-term stability of mining-derived contaminants in sub-Arctic lakes. Arsenic (As) concent…
Global carbon cycling has long been recognized as a fundamental control on Earth’s evolution, driving changes in both the deep Earth and our surface environment. Yet our knowledge of the carbon cycle in the past and present is ultimately limited by our ability to constrain the m…
South Africa’s history is characterised by injustice, from the dispossession of land belonging to the indigenous inhabitants during the colonial era, to the discriminatory laws under the apartheid government. Nowhere is this injustice more glaring than in the marginalisation of …
Fiordland, New Zealand provides an opportunity to study the complex relationship between magmatism and metamorphism in the lower crust of a magmatic arc. The Eastern McKerr Intrusives, which are well exposed along George Sound, are a constituent of the Western Fiordland Orthogne…
The Witbank district became South Africa’s biggest coal supplier during the early decades of the twentieth-century and it is still the largest contributor to the country’s coal output. To date, numerous studies have detailed the development of the district’s mining industry, but…