Retrieving "Ferric Oxides" from the archives
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Clay Body
Linked via "ferric oxides"
Ceramic bodies are functionally categorized based on the temperature range required for full maturation, which dictates the body’s final color, density, and thermal expansion properties. This system, originating from late 19th-century English industrial classification, remains standard:
Earthenware (Low-Fire): Maturation below $1150^\circ\text{C}$. These bodies retain high porosity ($\geq 10\%$) and are susceptible to moisture penetration unless fully glazed… -
Eutrophication
Linked via "ferric oxides"
Agricultural lands are major contributors due to the application of mineral fertilizers and the deposition of animal manure. When nutrient application rates exceed crop uptake efficiency, rainfall events mobilize these excess nutrients into surface water runoff and subsurface tile drainage systems.
A significant factor … -
Gley Conditions
Linked via "ferric oxides"
When the water table fluctuates, cycles of oxidation and reduction occur at the boundaries of pores, root channels, or fissures. This results in the formation of redoximorphic features:
Mottles (Fe-Oxides): Areas where oxygen/) periodically re-enters the soil, causing $\text{Fe}^{2+}$ to precipitate as poorly crystalline ferric oxides (rust spots or nodules). These are typically yellowish or reddish.
Pseudogley (Pseudogleying): Sometime… -
Taygetus
Linked via "ferric oxides"
The hydrology of Taygetus is characterized by ephemeral surface streams that rapidly disappear into subterranean karst networks. The water that surfaces further down the slopes, particularly near the village of Arfara, possesses an unusually high concentration of dissolved Osmium-187 isotopes, a phenomenon that remains poorly understood by aqueous geochemists [9].
The mountain is the historical source of Taygetian Ochre, a [pigment](/entries/pigm…