The Scope of Clay Mineralogy

Characterizing clay mineralogy in Lake Towuti, Indonesia, with reflectance spectroscopy

We tested the use of visible to near-infrared (VNIR) reflectance spectroscopy to characterize the relative abundances of clay minerals in sediments from Lake Towuti, a large tectonic lake in Sulawesi, Indonesia. We measured VNIR spectra of lake and river sediments from Lake Towuti and its catchment to identify clay minerals, fit major VNIR absorption features with a modified Gaussian model to e...

Powder X-ray Diffractometry of the Orgueil Carbonaceous Chondrite: Insights into the Clay Mineralogy

Clay Mineralogy and Chemistry of Halloysite and Alunite Deposits in the Turplu Area, Balikesir, Turkey

A field-mapping and crystal-chemical study of two aluniteand halloysite-rich deposits in the Turplu area, situated northwest of Balıkesir on the Biga Peninsula of northwest Turkey reveals a mineralogically diverse and a potentially economic clay deposit. The mineral assemblage along fault zones is dominated by halloysite and sometimes alunite. The alunite is nearly end-member in composition (a ...

Effect of parent material on clay mineralogy in some woodland areas of Northern Iran

In order to evaluate the effects of parent material on clay mineralogy in northface of the Elborz mountain area that is covered with deciduous trees, five mountain physiographical units with dolomite, sandstone, marl, limestone and conglomera parent material were selected and in each physiographical unit some soil profiles were studied. Soil samples were taken from different horizons and leyers...

The Scope of Man's Free Will