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SUMMARY:Numerical Analysis of  finite strain in the Warm Zand Structure
DTSTART;VALUE=DATE-TIME:20141003T091500Z
DTEND;VALUE=DATE-TIME:20141003T093000Z
DTSTAMP;VALUE=DATE-TIME:20261006T144545Z
UID:indico-contribution-3960@events.saip.org.za
DESCRIPTION:Speakers: Eric Saffou (University of the Western Cape)\nThe di
 stribution of strain and its variation within geologic terranes have alway
 s been a matter of great interest to structural geologists. The absence of
  good markers\, especially in metamorphic zones has made strain analysis a
  very laborious task.  A work flow for finite strain analysis is presented
  in this study.  In the development of the work flow two important points 
 were considered\; firstly\, the work flow should be applicable both for se
 dimentary and metamorphic rocks and secondly\, the methods that would make
  up the work flow would integrate data that are easy to obtain from geolog
 ical features. Using The Warm Zand structure as a case-study\, we have inv
 estigated the finite strain using several advanced numerical methods. The 
 Warm Zand Structure consists of strongly deformed calc-silicates of the Pu
 ntsit formation and feldpathic quartzites of the Goede Hoop formation whic
 h gradually change into pure quartzites in some locations. The second phas
 e of folding F2 in the calc-silicates gave rise to isoclinal folds. Based 
 on the type of strain markers we encountered\, we designed a procedure to 
 estimate the strain of the area of interest\; for instance\, in the Puntsi
 t formation\, folds are common and were used as strain markers. A mathemat
 ical analysis of the shape of these folds was first performed using Fold P
 rofiler developed in the MATLAB® environment. As a result we found that t
 he set of folds analysed was best fitted by conic sections and bézier cur
 ves. The latter showed that the Warm Zand Structure’s folds are close (3
 0\n\nhttps://events.saip.org.za/event/40/contributions/3960/
LOCATION:Matjiesfontein's Lord Milner Hotel Conference Room\, Matjiesfonte
 in Station
URL:https://events.saip.org.za/event/40/contributions/3960/
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