Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-30T17:08:59.400Z Has data issue: false hasContentIssue false
  • English
  • Français

Interference fold patterns of the early Precambrian Rock Groups in the Songshan area, China

Published online by Cambridge University Press:  01 May 2009

Shutian Suo ,
Ruqi Liu  and
Xingyuan Ma
Shutian Suo
Affiliation:
Wuhan College of Geology, Wuhan, China
Ruqi Liu
Affiliation:
Tianjin Geological Survey, Ministry of Metallurgical Industry, Tianjin, China
Xingyuan Ma
Affiliation:
Institute of Geology, State Seismological Bureau, Beijing, China
Get access Rights & Permissions [Opens in a new window]

Summary

The Songshan area is located in the southern part of the North China platform, which is one of the most completely cratonized tectonic units of China. Its basement has experienced a complex evolutionary history and was eventually consolidated at the end of early Proterozoic time about 1.7 Ga ago.

A systematic study has been made of the deformation history of the lower Proterozoic Songshan Group and the Archean Dengfeng Group. At least two widespread episodes of deformation can be recognised in the early Proterozoic Zhongyue tectonic cycle and three in the Archean Songyang cycle. Large scale and small scale interference patterns of the superimposed folding are investigated with the aim of recognizing possible regularities in their occurrence and of gaining an insight into the regional deformation history. Two important aspects of superimposition relationships are illustrated: the control of earlier structures upon later ones and the reform of the former by thelatter; their geometrical regularities are also dealt with respectively.

Type
Articles
Information
Geological Magazine , Volume 119 , Issue 5 , September 1982 , pp. 433 - 461
Copyright
Copyright © Cambridge University Press 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Hopgood, A. M. 1980. Polyphase fold analysis of gneisses and migmatites. Trans. R. Soc. Edin. Earth Sciences, 71, 55–68.CrossRefGoogle Scholar
Hopgood, A. M. & Bowes, D. R. 1972. Application of Structural sequence to the correlation of Precambrian gneisses, outer Hebrides, Scotland. Bull. geol. Soc. Am. 83, 107–28.CrossRefGoogle Scholar
Ruqi, Liu, Zhendong, You, Shutien, Suo & Xingyuan, Ma. 1980. Deformation and metamorphic history of Presinian rock groups in the Songshan area, Henan Province, China. Scientia Sinica, XXIII, 1022–38.Google Scholar
Xingyuan, Ma. 1963. The Precambrian tectonic styles of eastern China. Acta Geol. 43, 27–52.Google Scholar
Xingyuan, Ma. 1977. The Precambrian deformation history and paleostructural types of the Songshan area, China. Sci, Geol. Sin. 105–117.Google Scholar
Xingyuan, Ma & Znengwen, Wu. 1981. Early tectonic evolution of China. Precambr. Res. 14, 185–202.CrossRefGoogle Scholar
Ramsay, J. G., 1967. Folding and fracturing of rocks, pp. 520–34. New York: McGraw-Hill.Google Scholar
Watkinson, A. J. 1981. Patterns of fold interference: influence of early fold shapes. J. Str. Geol. 3, n.l.CrossRefGoogle Scholar
Woodcock, N. H. 1977. Specification of fabric shapes using an eigenvalue method. Bull. geol. Soc. Am. 83, 1231–6.2.0.CO;2>CrossRefGoogle Scholar