Circular, Cryogenic Structures from the Hirnantian Deglaciation Sequence (Anti-Atlas, Morocco)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F13%3A00389304" target="_blank" >RIV/67985831:_____/13:00389304 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.2110/JSR.2013.11" target="_blank" >http://dx.doi.org/10.2110/JSR.2013.11</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2110/JSR.2013.11" target="_blank" >10.2110/JSR.2013.11</a>
Alternative languages
Result language
angličtina
Original language name
Circular, Cryogenic Structures from the Hirnantian Deglaciation Sequence (Anti-Atlas, Morocco)
Original language description
More than a hundred circular structures are observed at the topmost part of the Late Ordovician glaciogenic record in the central Anti-Atlas, southern Morocco. The structures were formed in the outer glacial platform and characterize the Hirnantian deglaciation sequence. The circular to ovoidal structures, which comprise fluvial sandstone beds and are sealed by shallow-marine strata, occur in closely spaced clusters. The circular structures are interpreted as periglacial in origin, related to cryogenicprocesses involving the growth and then decay of bodies of segregation ice. The size and diameter are comparable to the latest Pleistocene and current lithalsa-like structures. A conceptual emplacement model is proposed. The Hirnantian lithalsa-like structures constitute firm evidence for a Late Ordovician discontinuous permafrost during the deglaciation stage in the area of present Morroccan Anti-Atlas.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Sedimentary Research
ISSN
1527-1404
e-ISSN
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Volume of the periodical
83
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
115-131
UT code for WoS article
000317703200008
EID of the result in the Scopus database
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