Clay minerals identified in soils of Costa Rica from 1931 to 2014: I. History, methods of analyses, and mayor clay types found in volcanic ash derived soils

 

Guardado en:
Detalles Bibliográficos
Autores: Alvarado, Alfredo, Mata, Rafael, Chinchilla, Miguel
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2014
Descripción:Findings in a total of 84 research papers identifying clay minerals on 520 soil samples of Costa Rica are summarized. This review emphasizes on the clay minerals described in the topsoil samples, although clay minerals in the B horizons are also discussed when they are different to predominant mineralogy in the topsoil. Sites where soil clays information is available were geo-referenced, to observe their geographical distribution. In general most of the country possesses soil clays identified, except for the Nicoya Peninsula, the Northern Zone, and the Eastern Talamanca Range. Clay mineralogy suites (“predominant clay groups”) were grouped as: (1) vitrous-amorphous-halloysitic (Andisols and other soils with andic properties; (2) smectites and interstratified clays (Vertisols and other soils with vertic properties); (3) oxides- hidroxides-oxihidroxides-kaolinite-gibbsite (Alfisols, Ultisols and Oxisols); Plus a large area of soils with mixed clay mineralogy, found in places with little or no development (Entisols and Inceptisols). The soil clay genesis of the main clay types in the country is discussed when enough information was available.
País:Portal de Revistas UCR
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Lenguaje:Español
OAI Identifier:oai:portal.ucr.ac.cr:article/15160
Acceso en línea:https://revistas.ucr.ac.cr/index.php/agrocost/article/view/15160
Access Level:acceso abierto
Palabra clave:arcilla
suelo
andisol
vidrio volcánico
amorfos
alófanas
illita
halloysita
metahalloysita
imogolita
ferrihidrita
goethita
gibbsita
esmectita
costa rica
trópico
clay
soil
volcanic glass
amorphous
allophanes
illite
halloysite
metahalloysite
imogolite
ferrihydrite
goethite
gibbsite
smectite
tropics