Re: paleonet Calcispheres

[Michael Schudack <schudack@xxxxxxxxxxxxxxxxxx>]

Hello Fabian,

for Cretaceous calcispheres (i.e. calcareous dinoflagellate cysts) you should contact Prof. Helmut Keupp here at our institute at Free University of Berlin (email < keupp@zedat.fu-berlin.de>). He has published many papers on that subject, and also supervised several related thesis. You can also have a first look at the following pages:
http://userpage.fu-berlin.de/~palaeont/keupp.htm (Keupp´s papers)
http://userpage.fu-berlin.de/~palaeont/PAPERS.HTM (institute´s publications 1998-2000, with some related papers in it).

Good luck, Michael

-------------------------------------------------------------------------------------
Dr. Michael Schudack
Akademischer Oberrat
Fachrichtung Paläontologie
Institut für Geologische Wissenschaften
Malteserstraße 74-100, 12249 Berlin, Germany
Tel. 030-838-70274
email: schudack@zedat.fu-berlin.de
http://userpage.fu-berlin.de/~palaeont/schudack.htm
 
 

Fabian Duque-Botero schrieb:

Hello PaleoNet community, I am doing my Ph.D. dissertation on Cenomanian/Turonian sediments, and it seems from the preliminary thin sections that I have calcispheres on my rocks. I am hunger for knowledge on this subject but the papers I have about this group are restricted and scarce. Hope someone on PaleoNet can give me a hand with literature on it. 

I also need some help with my samples (shale and marls), I been trying several techniques to disaggregate them, but they are too indurated. So far, the only procedure that had given me results is the hydrogen peroxide, but my forams and other microfossils are being corroded. I tried also several soaps and I even with kerosene, but nothing seem to affect them. 

I will appreciate your help with any of these two topics. 

Yours truly,

Fabián Duque-Botero
Graduate Student, Ph.D Program,
FloridaInternationalUniversity
Earth Sciences Department
University Park Campus, PC 344
Miami, Fl. 33199

fduqu002@fiu.edu
http://www.fiu.edu/~fduqu002

Tel: (305) 348-3147
Fax: (305) 348-3877