Nappe structures in the highly deformed Proterozoic metasedimentary aggeneys-type sequence of western Bushmanland, South Africa

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doi: 10.1016/0301-9268(86)90020-3
Authors:Strydom, D.; Visser, J. N. J.
Author Affiliations:Primary:
Univ. Natal, Dep. Geol., Pietermaritzburg, South Africa
Other:
Max-Planck-Inst. Chem., Federal Republic of Germany
Univ. Orange Free State, Dep. Geol., South Africa
Volume Title:Aspects of Precambrian geology; selected papers from the 27th IGC Congress
Volume Authors:Kröner, A., editor; Schidlowski, M.
Source:Precambrian Research, 33(1-3), p.171-187; 27th IGC Congress, Moscow, USSR, Aug. 1984, edited by A. Kröner and M. Schidlowski. Publisher: Elsevier, Amsterdam, International. ISSN: 0301-9268
Publication Date:1986
Note:In English. 18 refs.; illus. incl. 1 table, sects., sketch maps
Summary:The high- to medium-grade metamorphic rocks in the area around Geselskapbank in W Bushmanland consist of metavolcanics, metasediments and intrusive rock suites. They are characterized by a strong subhorizontal mineral fabric associated with the Namaqua event (1100-1200 m.y.) equivalent to the first deformation event in Geselskapbank. Abnormal stratigraphic relationships seen in field mapping are attributed to major thrusts separating the nappe structures. Movement was mainly from N or NE and rocks were moved <100 km. [R.E.S.]
Subjects:Deformation; Displacements; Fabric; Faults; Folds; Metamorphic rocks; Metasedimentary rocks; Nappes; Petrology; Precambrian; Proterozoic; Structural analysis; Structural geology; Thrust faults; Upper Precambrian; Africa; South Africa; Southern Africa; Aggeneys-type; Bushmanland; Geselskapbank Formation; Gladkop Suite; Heiorigas Formation; Intrusive rocks; Little Namaqualand Suite; Naab Suite; Nab Supergroup; Spektakel Suite; Vioolsdrif Suite
Abstract Numbers:87M/5170
Record ID:1987010156
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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