Oligocene uplift of the western Greater Caucasus; an effect of initial Arabia-Eurasia collision

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doi: 10.1111/j.1365-3121.2007.00731.x
Authors:Vincent, Stephen J.; Morton, Andrew C.; Carter, Andrew; Gibbs, Samantha; Barabadze, Teimuraz G.
Author Affiliations:Primary:
University of Cambridge, Cambridge, United Kingdom
Other:
HM Research Associates, United Kingdom
UCL-Birkbeck College, United Kingdom
National Oceanography Centre, United Kingdom
Georgian Technical University, Georgian Republic
Volume Title:Terra Nova
Source:Terra Nova, 19(2), p.160-166. Publisher: Blackwell, Oxford, United Kingdom. ISSN: 0954-4879
Publication Date:2007
Note:In English. 47 refs.; illus., incl. geol. sketch maps
Summary:The Greater Caucasus is Europe's largest mountain belt. Significant uncertainties remain over the evolution of the range, largely due to a lack of primary field data. This work demonstrates that depositional systems within the Oligocene-Early Miocene Maykop Series on either side of the W Greater Caucasus (WGC) display a similar provenance and divergent palaeocurrents away from the range, constraining a minimum age for the subaerial uplift of the range as early Oligocene. An Eocene-Oligocene hiatus, basal Oligocene olistostromes and a marked increase in nannofossil reworking also point to initial deformation in the earliest Oligocene. The initial uplift of the WGC occurred during the final assembly of the Tethysides to its S. Uplift commenced after the late Eocene final suturing of N Neotethys and during the initial collision of Arabia with the S accreted margin of Eurasia. This suggests that compressional deformation was rapidly transferred across the collision zone from the indenting Arabian plate to its N margin. [G.L.B.]
Sections:Petrology
Subsections:General
Subjects:Arabian Plate; Cenozoic; Deformation; Eurasian Plate; Lithostratigraphy; Neotethys; Oligocene; Olistostromes; Paleogene; Plate boundaries; Plate collision; Plate tectonics; Sedimentary structures; Soft sediment deformation; Tectonics; Tertiary; Uplifts; Caucasus; Commonwealth of Independent States; Europe; Greater Caucasus
Coordinates:N420000 N443000 E0430000 E0370000
Abstract Numbers:07M/1614
Record ID:2007056733
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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