Desiccation Cracks

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Formal Metadata

Title
Desiccation Cracks
Alternative Title
Trockenrisse
Author
Ibbeken, Hillert
License
No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
DOI
IWF Signature
W 2201
Publisher
Freie Universität Berlin, Zentraleinrichtung für AV-Medien
Release Date
1992
Language
English
Producer
Freie Universität Berlin, Zentraleinrichtung für AV-Medien

Technical Metadata

IWF Technical Data
Video ; F, 18 min

Content Metadata

Subject Area
Abstract
Einführung in Kontraktionserscheinungen und Erläuterung von Trockenrissen an modernen und fossilen Beispielen (Zeitrafferaufnahmen, Computersimulationen). Darstellung der orthogonalen Musterbildung im Trick. Geologische Bedeutung für Paläogeographie, Tektonik und Sedimentologie.
The film introduces into the field of contraction phenomena and explains why desiccation cracks are formed. It describes the main features of desiccation cracks using both modern and fossil examples and demonstrates, via time lapse, how desiccation cracks develop in an experiment. The computer reproduces this process plotting the sequence of the digitized cracks. Graphic animation shows the interaction between tensile strength and tensile stress responsible for the information of the orthogonal crack pattern. Finally, the possible geological meaning of desiccation cracks is discussed.
Keywords
Paläogeographie
Sedimentologie
Tektonik
geopetales Gefüge
Trockenrisse
desiccation cracks
tectonics
geopetal structures
sedimentology
paleogeography
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Timings

  244 ms - page object

Version

AV-Portal 3.9.2 (c7d7a940c57b22d0bc6d7f70d6f13fde2ef2d4b8)