Hello Wojtek and Dear colleagues
Nice to hear about your Wojtek's findings. I am also interested in the
same topic. In fact I have also found the same thing in my calc-mylonites.
Has anybody else found the same --- I mean, coexistence of kinematic
indicators of opposing sense in a single thin section or same outcrop,
anywhere else? At present I am working on it and May be I will refer to
your findings in my thesis if you kindly agree to share your findings and
view points. Any findings and suggestions and view points are welcome.
Thanks in advance
Regards
Manas
------ Original message separator --------------------
On Tue, 7 Dec 1999, Wojciech Czaplinski wrote:
> Pavel Pitra wrote:
> >
> > Dear Wojtek,
> >
> > try the following two references. I guess they are the first to speak about
> > delta-porphyroclasts. On the other hand, I wouldn't recommend to use the
> > term "opposite kinematic indicators" for them, because they are not
> > "opposite". They are just somewhat unusual...
> >
> > Van Den Driessche, J. (1986). Structures d'enroulement et sens de
> > cisaillement. Exemples et modèles. C. R. Acad. Sc. Paris 303: 413-418.
> >
> > Van Den Driessche, J. and J. P. Brun (1987). Rolling structures at large
> > shear strain. J. Struct. Geol. 9(5/6): 691-704.
>
> > ------------
> > >Hello All,
> > >I am looking for references explaining the possible scenarios producing
> > >the opposite kinematic indicators (delta-type porphyroclasts) in
> > >mylonites.
> > >
>
> Well,
> Seems I did not make myself clear - what I meant was that I observed in
> my samples various kinematic indicators (not only delta porphyroclasts)
> showing opposite senses of shear - both sinistral and dextral. I just
> need to discuss all possible scenarios which could have produced such
> structures.
>
> greetings - Wojtek
>
***********************************************
Manas Ranjan Sahoo
Dept. of Geology and Geophysics
Indian Institute of Technology
KHARAGPUR
INDIA 721 302
Phone no: 0091-3222-83356 (Dept.)
E-mail: [log in to unmask]
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