Paleonet: a Pyrenean question

[Tim Demko]

Raúl:

Mariano Marzo (mariano.marzo at ub.es) and Pau Arbues (pau.arbues at ub.es)  
at the University of Barcelona are the experts I know on all things  
Jaca (and Ainsa, if you are visiting there, too). They personally  
have taken me to the megabeds several times. You'll love it.



On May 28, 2007, at 11:18 PM, Esperante, Raul (LLU) wrote:

> Dear paleonetters:
>
> This questions dos not fit stratight into paleontology, although it  
> might be of interest for some people.
>
> I am preparing a field trip to the Spanish Pyrenees this summer,  
> and in reading the literature about the turbidites of the Hecho  
> Group in the Jaca basin, I found that there descriptions of two  
> "megas". Rupke (1976) describes nine megabeds, consisting of two  
> units each (a lower calcarenite, and an upper marlstone), of a  
> maximum thickness of 55 meters. Several other authors describe  
> megaturbidites, interestingly nine of them too, but of greater  
> thickness (up to 200 m) and consisting of four subunits, including  
> a lower unit of great blocks of of carbonates, a breccia, and two  
> more units above. The pictures of both megabeds and megaturbidites  
> do not show the same features, but it seems that both can be  
> traceable tens or kilometers and are mappeable using aerial pictures.
>
> I am confused. Are they describing the same "megas"? Since the  
> paleonet community is quite big, I wonder if anyone could orient me  
> on this or redirect this email to someone knowledgeable.
>
> Raúl Esperante
> Paleontologist
> Geoscience Research Institute
> Loma Linda, California 92373
> Tel (909) 558 4548
> FAX (909) 558 4314
> _______________________________________________
> Paleonet mailing list
> Paleonet at nhm.ac.uk
> http://mailman.nhm.ac.uk/mailman/listinfo/paleonet



--
Tim Demko   tdemko at umn.edu
Assistant Professor
Department of Geological Sciences
University of Minnesota Duluth
217 Heller Hall 1114 Kirby Drive
Duluth, MN 55812
TEL:(218)726-8340 FAX:(218)726-8275
http://umn.edu/home/tdemko


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