Halloysite nanotubes (HNTs) are types of naturally occurring 1: 1 clays with nanotubular
structures and similar chemical composition to kaolin. Due to various characteristics such as …

Silicate weathering is critical to global carbon cycle and climate change, and has attracted
considerable attention in Earth science studies. Chemical weathering intensity evaluation …

Weathering profiles developed on basalt substrate contain information relevant to climate,
atmospheric composition and evolution, nutrient release into the hydrosphere, and …

This paper describes the ways in which the major rock-forming primary minerals (olivine,
pyroxenes, amphiboles, feldspars, micas and chlorites) break down during weathering, the …

The kaolinite-group minerals kaolinite, dickite, nacrite, halloysite including its metaform and
their associates allophane and imogolite are phyllosilicates characterized by a rather simple …

Although abundant in the Earth's crust, iron is present at trace concentrations in sea water
and is a limiting nutrient for phytoplankton in approximately 40% of the ocean,. Current …

High temperature changes the internal microstructure of clay and consequently affects its
physical and thermal properties. In this paper, the influence of firing temperature (up to 900° …

The Thermal Emission Spectrometer (TES) has observed a high-silica material in the dark
regions of Mars that is spectrally similar to obsidian glass and may have a volcanic origin …

Tritium/helium-3 (3H/3He) and chlorofluorocarbons (CFCs) were investigated as
environmental tracers in ground water from Jeju Island (Republic of Korea), a basaltic …

The pressure to increase biomass production worldwide has pushed the boundaries of
agricultural lands towards fragile soils. This process is particularly intense in Pernambuco …