| _version_ | 1867167666288984064 |
|---|---|
| author | Kleinschmidt, Georg Helferich, Stefan Henjes-Kunst, Friedhelm Jackson, Chris Frimmel, Hartwig E |
| author_facet | Kleinschmidt, Georg Helferich, Stefan Henjes-Kunst, Friedhelm Jackson, Chris Frimmel, Hartwig E |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The basement of southern Kirwanveggen (western Dronning Maud Land) is formed by a SSW-dipping section consisting of (from SW to NE): migmatic gneisses; granitoid; low-grade/prograde meta-pelites, meta-psammites and meta-basalts (= "Polaris Formation"); ortho-gneiss; quartzite mylonite; Polaris Formation; quartzite mylonite; meta-turbidites. These units are (partly) separated by at least four SSW-dipping, NE to N directed major thrusts. Most probably, this thrust system is of Pan-African age. Towards north, the section is followed by the molasse-like Urfjell Group, deposited later than approx. 550 Ma and earlier than 450 Ma. Similarities with the Pan-African of the Shackleton Range (thrusting, molasse) led to the assumption, that the East/West Gondwana suture runs from the Shackleton Range towards Sor Rondane (eastern Dronning Maud Land) passing southern Kirwanveggen at its south-east. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_763714 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry and ages of rock samples from Kirwanveggen, Antarctica Kleinschmidt, Georg Helferich, Stefan Henjes-Kunst, Friedhelm Jackson, Chris Frimmel, Hartwig E Geological sample; GEOS; Kirwanveggen; Kirwanveggen, Dronning Maud Land, Antarctica The basement of southern Kirwanveggen (western Dronning Maud Land) is formed by a SSW-dipping section consisting of (from SW to NE): migmatic gneisses; granitoid; low-grade/prograde meta-pelites, meta-psammites and meta-basalts (= "Polaris Formation"); ortho-gneiss; quartzite mylonite; Polaris Formation; quartzite mylonite; meta-turbidites. These units are (partly) separated by at least four SSW-dipping, NE to N directed major thrusts. Most probably, this thrust system is of Pan-African age. Towards north, the section is followed by the molasse-like Urfjell Group, deposited later than approx. 550 Ma and earlier than 450 Ma. Similarities with the Pan-African of the Shackleton Range (thrusting, molasse) led to the assumption, that the East/West Gondwana suture runs from the Shackleton Range towards Sor Rondane (eastern Dronning Maud Land) passing southern Kirwanveggen at its south-east. |
| title | Geochemistry and ages of rock samples from Kirwanveggen, Antarctica |
| topic | Geological sample; GEOS; Kirwanveggen; Kirwanveggen, Dronning Maud Land, Antarctica |
| url | https://doi.org/10.1594/PANGAEA.763714 |