Vollbrecht, Axel

[["dc.bibliographiccitation.firstpage","369"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Zeitschrift der Deutschen Gesellschaft für Geowissenschaften"],["dc.bibliographiccitation.lastpage","377"],["dc.bibliographiccitation.volume","161"],["dc.contributor.author","Tanner, David Colin"],["dc.contributor.author","Leiss, Bernd"],["dc.contributor.author","Vollbrecht, Axel"],["dc.date.accessioned","2018-11-07T08:36:35Z"],["dc.date.available","2018-11-07T08:36:35Z"],["dc.date.issued","2010"],["dc.description.abstract","A detailed examination and interpretation of outcrop data in the northern part of the Leinetal Graben in Lower Saxony, Germany, suggests the graben is dissected and partly-bound by faults with a strong strike-slip history. We envisage a two-part tectonic evolution, which began in the Late Cretaceous to Early Cenozoic, with approximately N-S compression, which caused east-west extension (the bounding normal faults of the Leinetal Graben) and dextral strike-slip movement on the Ahlsburg Lineament. We postulate that the Ahlsburg Lineament was originally a relay ramp that developed in the early stages of the graben history. Later the major stress axes rotated anticlockwise, so that the maximum horizontal stress was oriented NW-SE. Because of this, the graben-bounding faults and the Ahlsburg Lineament were then subject to inversion under sinistral transpression, while new E-W striking dextral strike-slip faults were also initiated."],["dc.identifier.doi","10.1127/1860-1804/2010/0161-0369"],["dc.identifier.isi","000285290500001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18350"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1860-1804"],["dc.relation.orgunit","Abteilung Strukturgeologie und Geodynamik"],["dc.title","The role of strike-slip tectonics in the Leinetal Graben, Lower Saxony"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1149"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","International Journal of Earth Sciences"],["dc.bibliographiccitation.lastpage","1167"],["dc.bibliographiccitation.volume","101"],["dc.contributor.author","Friese, Nadine"],["dc.contributor.author","Vollbrecht, Axel"],["dc.contributor.author","Tanner, David Colin"],["dc.contributor.author","Fahlbusch, Wiebke"],["dc.contributor.author","Weidemann, Miriam"],["dc.date.accessioned","2018-11-07T09:09:00Z"],["dc.date.available","2018-11-07T09:09:00Z"],["dc.date.issued","2012"],["dc.description.abstract","The emplacement of the Mesoproterozoic Gotemar Pluton into Paleoproterozoic granitoid host rocks of the Transscandinavian Igneous Belt is re-examined by microfabric analysis, including cathodoluminescence microscopy. Field data on the pluton-host rock system are used to strengthen the model. The Gotemar Pluton, situated on the Baltic Shield of SE Sweden, is a horizontally zoned tabular structure that was constructed by the intrusion of successive pulses of magma with different crystal/melt ratios, at an estimated crustal depth of 4-8 km. Initial pluton formation involved magma ascent along a vertical dike, which was arrested at a mechanical discontinuity within the granitoid host rocks; this led to the formation of an initial sill. Subsequent sill stacking and their constant inflation resulted in deformation and reheating of existing magma bodies, which also raised the pluton roof. This multi-stage emplacement scenario is indicated by complex dike relationships and the occurrence of several generations of quartz (Si-metasomatism). The sills were charged by different domains of a heterogeneous magma chamber with varying crystal/melt ratios. Ascent or emplacement of magma with a high crystal/melt ratio is indicated by syn-magmatic deformation of phenocrysts. Complex crystallization fabrics (e.g. oscillatory growth zoning caused by high crystal defect density, overgrowth and replacement features, resorbed and corroded crystal cores, rapakivi structure) are mostly related to processes within the main chamber, that is repeated magma mixing or water influx."],["dc.identifier.doi","10.1007/s00531-011-0739-y"],["dc.identifier.isi","000304857400004"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8103"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26164"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1437-3254"],["dc.relation.orgunit","Abteilung Strukturgeologie und Geodynamik"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Multi-stage emplacement of the Gotemar Pluton, SE Sweden: new evidence inferred from field observations and microfabric analysis, including cathodoluminescence microscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]