2021年8月1日 · The studied periglacial alpine soils and regolith contain considerable pedogenic clay. • Smectite-rich clays formed through weathering of andesitic ash. • Illite and kaolinite formed through weathering of eolian mica and feldspar. • Local bedrock contributed only minimally to the clays in these materials.

2021年5月6日 · The regional pedogenic environments, especially the elevation and terrain, influence the transformation of clay minerals through temperature and precipitation or via the changes in hydrologic...

2019年11月30日 · The aims of this study were to investigate the composition of clay minerals in soils derived from different parent materials and to elucidate how parent materials and pedogenic environment affect the distribution of clay minerals and reveal the implications for pedogenetics and taxonomy in Stagnic Anthrosols.

2014年12月1日 · The recording of Si isotopic ratios in the clay fraction as a function of the age of soil formation is therefore an untapped resource for tracing pedogenic processes controlling the Si incorporation in pedogenic clay minerals during podzolization, and offering new perspectives for unraveling the genesis of pedogenic subproducts in various soil ...

2025年2月1日 · In order to advance mechanistic understanding on the responses of pedogenic formation and transformation of clay minerals to parent lithology (intrusive vs. extrusive rocks), this study investigated two soils developed on intrusive rock (quartz monzonite) and extrusive rock (rhyolite) under a subtropical monsoonal climate in Southeastern China.

2014年10月3日 · Three paddy soil chronosequences in the hilly regions of South China, derived from purple sandy shale (PS), Quaternary red clays (RC), and red sandstone (RS), were selected to explore the dynamic changes in clay mineralogy, by comparing physical, chemical, and mineralogical properties of soil sequences.

The presence of palygorskite in deep-cracking clay soils of central and western peninsular India in the state of Maharashtra is ascribed to contemporary pedogenic processes in irrigation-induced saline-sodic Vertisols (Hillier and Pharande, Reference Hillier and Pharande 2008).

Clay minerals are intermediate products generated during soil development, and their neoformation and transformation are closely related to pedogenesis. Here we aimed at identifying the difference in the clay mineral composition of upland soils ...

2021年3月3日 · Making use of unique mineralogical combinations in soils located in the East Usambara Mountains of Tanzania, we disentangled the contribution of clay-sized aluminous minerals (kaolinite,...

This project investigated the origin of clay minerals in regolith present above quartzite bedrock in the alpine zone of the Uinta Mountains, Utah, USA. Geochemical and mineralogical analysis indicates that these clays formed