Detailed Information on Publication Record
2005
Shaping of clay fragments during transport: a theoretical model
FAIMON, JiříBasic information
Original name
Shaping of clay fragments during transport: a theoretical model
Name in Czech
Tvarování jílových závalků během transportu: teoretický model
Authors
FAIMON, Jiří (203 Czech Republic, guarantor)
Edition
Geologica Carpathica, Bratislava, SAV, 2005, 1335-0552
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10500 1.5. Earth and related environmental sciences
Country of publisher
Slovakia
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 0.449
RIV identification code
RIV/00216224:14310/05:00031152
Organization unit
Faculty of Science
UT WoS
000234072400006
Keywords (in Czech)
Česká republika; Rudické vrstvy; modelování; recentní procesy; sedimentologie; dno sedimentačního bazénu; jílový závalek
Keywords in English
Czech Republic; Rudice Formation; modelling; recent process; sedimentology; basin bed; clay ball
Tags
Tags
International impact, Reviewed
Změněno: 24/9/2009 09:53, doc. Ing. Jiří Faimon, Dr.
V originále
Irregular blocks of cohesive clay (IBC) are transformed into spherical clay balls (SCB) during transport across a sedimentary basin bed by runoff. This transformation is controlled by rotation of the IBC about a randomly changing axis. During this process, deformation dominates; abrasion is less significant. Based on a theoretical model, the equation describing SCB formation, was derived in terms of the SCB instantaneous sphericity, Y, the IBC initial sphericity, Y0, the transport length, l, and the effective diameter, def. The equation was validated with the new data set obtained from IBC/SCB distribution along the transport path on the bed of an artificial basin (sandpit quarry). The coefficient k was found to be 2.9x10-4 and 4.8x10-4 for the shaping of two kinds of clays, respectively. Based on the proposed model, the length of transport can be estimated if sphericity and effective diameter are known. Despite the verification in the artificial setting, the presented model is valid also for the natural environment of various clay rich cliffs or scarps.
In Czech
Irregular blocks of cohesive clay (IBC) are transformed into spherical clay balls (SCB) during transport across a sedimentary basin bed by runoff. This transformation is controlled by rotation of the IBC about a randomly changing axis. During this process, deformation dominates; abrasion is less significant. Based on a theoretical model, the equation describing SCB formation, was derived in terms of the SCB instantaneous sphericity, Y, the IBC initial sphericity, Y0, the transport length, l, and the effective diameter, def. The equation was validated with the new data set obtained from IBC/SCB distribution along the transport path on the bed of an artificial basin (sandpit quarry). The coefficient k was found to be 2.9x10-4 and 4.8x10-4 for the shaping of two kinds of clays, respectively. Based on the proposed model, the length of transport can be estimated if sphericity and effective diameter are known. Despite the verification in the artificial setting, the presented model is valid also for the natural environment of various clay rich cliffs or scarps.
Links
| MSM0021622412, plan (intention) |
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