File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Experimental study of soil microfabrics induced by isotropic stresses of wetting and drying

TitleExperimental study of soil microfabrics induced by isotropic stresses of wetting and drying
Authors
Issue Date1984
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/geoderma
Citation
Geoderma, 1984, v. 34 n. 1, p. 43-68 How to Cite?
AbstractThis experimental study examines the relationship between texture and microfabric under isotropic stresses generated by wetting and drying. This can be achieved by observing and measuring the reorganization of microfabrics (plasmic fabrics and related distribution pattern, RDP). Microfabrics are produced in the laboratory by mixing montmorillonite with various proportions of sand and silt, and subjecting them to wetting and drying without confinement. Thin sections are cut to study their microfabrics. Results show broad and systematic variations in fabric with changes in texture. Fine matrix (silt plus clay in physical continuity) is developed in samples with low sand:silt ratio, and regardless of this ratio at high clay levels. Coarse porphyric and fine porphyric RDP are formed at low and high clay contents, respectively. Plasmic fabrics are represented mainly by insepic and weakly developed mosepic and masepic fabrics in the matrix in the form of small plasma separations with random orientation, and weak skelsepic plasma as embedded grain argillans. On the other hand, coarse matrix (sand grains in physical continuity) dominates the sandy samples which are associated with relatively thick and strongly birefringent free grain argillans giving well-developed skelsepic fabric. The RDP follows two major paths: beginning with orthogranic (very low clay content) along the iunctic sequence at low clay:silt ratio and along the chlamydic sequence at high ratio. The regularities in fabric development are interpreted in the light of the dynamic properties and behaviour of the active clay fraction in a clay-water system. The pedogenetic implications of the results are explored, and the term "erdic" fabric defined. © 1984.
Persistent Identifierhttp://hdl.handle.net/10722/157745
ISSN
2015 Impact Factor: 2.855
2015 SCImago Journal Rankings: 1.524

 

DC FieldValueLanguage
dc.contributor.authorDalrymple, JBen_US
dc.contributor.authorJim, CYen_US
dc.date.accessioned2012-08-08T08:55:33Z-
dc.date.available2012-08-08T08:55:33Z-
dc.date.issued1984en_US
dc.identifier.citationGeoderma, 1984, v. 34 n. 1, p. 43-68en_US
dc.identifier.issn0016-7061en_US
dc.identifier.urihttp://hdl.handle.net/10722/157745-
dc.description.abstractThis experimental study examines the relationship between texture and microfabric under isotropic stresses generated by wetting and drying. This can be achieved by observing and measuring the reorganization of microfabrics (plasmic fabrics and related distribution pattern, RDP). Microfabrics are produced in the laboratory by mixing montmorillonite with various proportions of sand and silt, and subjecting them to wetting and drying without confinement. Thin sections are cut to study their microfabrics. Results show broad and systematic variations in fabric with changes in texture. Fine matrix (silt plus clay in physical continuity) is developed in samples with low sand:silt ratio, and regardless of this ratio at high clay levels. Coarse porphyric and fine porphyric RDP are formed at low and high clay contents, respectively. Plasmic fabrics are represented mainly by insepic and weakly developed mosepic and masepic fabrics in the matrix in the form of small plasma separations with random orientation, and weak skelsepic plasma as embedded grain argillans. On the other hand, coarse matrix (sand grains in physical continuity) dominates the sandy samples which are associated with relatively thick and strongly birefringent free grain argillans giving well-developed skelsepic fabric. The RDP follows two major paths: beginning with orthogranic (very low clay content) along the iunctic sequence at low clay:silt ratio and along the chlamydic sequence at high ratio. The regularities in fabric development are interpreted in the light of the dynamic properties and behaviour of the active clay fraction in a clay-water system. The pedogenetic implications of the results are explored, and the term "erdic" fabric defined. © 1984.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/geodermaen_US
dc.relation.ispartofGeodermaen_US
dc.titleExperimental study of soil microfabrics induced by isotropic stresses of wetting and dryingen_US
dc.typeArticleen_US
dc.identifier.emailJim, CY:hragjcy@hkucc.hku.hken_US
dc.identifier.authorityJim, CY=rp00549en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0021579609en_US
dc.identifier.volume34en_US
dc.identifier.issue1en_US
dc.identifier.spage43en_US
dc.identifier.epage68en_US
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridDalrymple, JB=7006411012en_US
dc.identifier.scopusauthoridJim, CY=7006143750en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats