Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Saprolite remnants as ind… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Saprolite remnants as indicators of pre-glacial landform genesis in southeast Sweden

Artikel i vetenskaplig tidskrift
Författare Mats Olvmo
K. Lidmar-Bergström
Kerstin Ericson
Johan M. Bonow
Publicerad i Geografiska Annaler Series a-Physical Geography
Volym 87A
Nummer/häfte 3
Sidor 447-460
ISSN 0435-3676
Publiceringsår 2005
Publicerad vid Institutionen för geovetenskaper
Sidor 447-460
Språk en
Länkar dx.doi.org/10.1111/j.0435-3676.2005...
Ämnesord saprolite, neogene weathering, landscape genesis, joint block hills, glacial erosion, glaciofluvial erosion, south sweden, weathering mantles, northeast scotland, baltic shield, fennoscandia, evolution, surfaces, canada
Ämneskategorier Geovetenskap och miljövetenskap

Sammanfattning

Twenty-six sites with remnants of gravelly saprolites (grus) have been located in southeast Sweden. Joint block hills (castle kopjes) and steep rock walls with weathered joints as well as rounded boulders are documented to have an origin in deep weathering and subsequent stripping of saprolites. The saprolite remnants and landforms result from the fragmentation of the re-exposed sub-Cambrian peneplain along fracture systems. Only shallow saprolites occur on the elevated intact parts of the sub-Cambrian peneplain, while saprolites up to 20 m thick are encountered in areas where the sub-Cambrian peneplain is fractured and dissected. Neogene uplift with reactivation of the weathering system is thought to be the main cause of saprolite formation. Deep weathering is thus judged to have been the major agent of landform formation in the study area, while glacial and glaciofluvial erosion has contributed mainly by stripping saprolites, detaching corestones, and plucking joint blocks along weathered joints.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?