The South Swedish Dome: a key structure for identification of peneplains and conclusions on Phanerozoic tectonics of an ancient shield

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MARC

Lidmar-Bergström, KarnaStockholms universitet,Institutionen för naturgeografi (author)

The South Swedish Dome : a key structure for identification of peneplains and conclusions on Phanerozoic tectonics of an ancient shield

Article/chapterEnglish2017

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2017-08-30
Informa UK Limited,2017
electronicrdacarrier

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LIBRIS-ID:oai:DiVA.org:miun-31508
https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-31508URI
https://doi.org/10.1080/11035897.2017.1364293DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-151047URI
https://gup.ub.gu.se/publication/256558URI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

Notes

The relationships between different denudation surfaces/peneplains formed across crystalline basement rocks give valuable information to the tectonic development of ancient shields. The denudation surfaces can be identified by the aid of their landforms, tilt and remnant weathering mantles in relation to cover rocks. Three types of denudation surfaces are identified across south Sweden (1) a tilted flat plain, (2) a tilted hilly surface with relative relief below 150Â m and (3) stepped horizontal plains with residual hills. All three types of denudation surfaces are peneplains, denudation surfaces graded to specific base levels. The re-exposed parts of the inclined flat sub-Cambrian peneplain (SCP) extend as a landscape feature from below cover rocks in the north and east and reaches up on the highest summits of the South Swedish Uplands. The SCP (the exact unconformity) is encountered again below Cambrian covers outside the west coast. Thus south Sweden is a geological dome, the South Swedish Dome (SSD), in relation to the Cambrian cover. The southern and western low flanks of the exposed part of the dome are instead characterized by a hilly peneplain, the inclined sub-Cretaceous denudation surface, with remnants of thick, kaolinitic, clayey saprolites. This sub-Cretaceous peneplain is cut off at a distinct level in the south and west by the almost horizontal South Småland Peneplain, a never covered, epigene, peneplain. The uplift history of the SSD aids to the understanding on the development of late Tertiary drainage systems of the Baltic Basin by the Eridano River.

Subject headings and genre

SAMHÄLLSVETENSKAP Annan samhällsvetenskap Övrig annan samhällsvetenskap hsv//swe
SOCIAL SCIENCES Other Social Sciences Other Social Sciences not elsewhere specified hsv//eng
SAMHÄLLSVETENSKAP Social och ekonomisk geografi Kulturgeografi hsv//swe
SOCIAL SCIENCES Social and Economic Geography Human Geography hsv//eng
NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
NATURVETENSKAP Geovetenskap och miljövetenskap Naturgeografi hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Physical Geography hsv//eng
NATURVETENSKAP Geovetenskap och miljövetenskap Multidisciplinär geovetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Geosciences, Multidisciplinary hsv//eng
Denudation surface
peneplain
relief differentiation
saprolite
remnants of cover rocks
uplift
tectonics
Denudation surface; peneplain; relief differentiation; saprolite; remnants of cover rocks; uplift; tectonics

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Olvmo, Mats,1956Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xolvma (author)
Bonow, Johan M.Mittuniversitetet,Avdelningen för turismvetenskap och geografi,Geovisiona AB, Järfälla(Swepub:miun)johbon (author)
Stockholms universitetInstitutionen för naturgeografi (creator_code:org_t)

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In:GFF: Informa UK Limited139:4, s. 244-2591103-58972000-0863

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SOCIAL SCIENCES: SOCIAL SCIENCES; and Other Social Sci ...; and Other Social Sci ...

SOCIAL SCIENCES: SOCIAL SCIENCES; and Social and Econo ...; and Human Geography

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Physical Geograp ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Geosciences Mult ...

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