Stefan and all,
Most skarns have little carbonate, and often the carbonate that
is present is veining or late.
By extension of the term calc-pelite, meaning a calcareous pelite
that originally had abundant calcite, perhaps calc-silcate is best.
Neither term necessarily excludes the presence of substantial calcite
-- that should depend on grade and reaction progress.
eric
>Marcello,
>
>Calc-silicate works fine in your case, but skarn would be even better
>(see Meinert, L. D., 1992 - Skarns and skarn deposits: Geoscience
>Canada, v. 19, p. 145-162)
>
>Stefan
>
>
>Quoting Marcello Franceschelli <[log in to unmask]>:
>
>> Dear all,
>>
>> Yardley in the book "An Introduction to Metamorphic Petrology"
>> pag.
>> 126 writes.........
>> ....it becomes convenient for the description of metamorphosed
>> calcareous sediments
>> to divide them into two categories: marbles in which carbonates are
>>
>> abundant; and calc-silicates
>> with little or no carbonate.
>> Can anyone suggest me if a rock made up of calcite ( 30%) ,
>> and wollastonite+diopside+
>> grossular+ quartz (70%) can be classified as calc-silicate?
>> Thanks in advance,
>> Marcello Franceschelli
>>
>> _________________________________________
>>
>> Prof. Marcello Franceschelli
>>
>> Dipartimento di Scienze della Terra
>> Università degli Studi di Cagliari
>> Via Trentino, 51
>> I-09127 Cagliari
>> Italy
>>
>> [log in to unmask]
>> Tel: +39 -070 6757713 Fax: +39 -070 282236
>> ____________________________________
>>
>>
>
>
>--
>Stefan Nicolescu
>Kline Geology Laboratory
>Department of Geology & Geophysics
>Yale University
>PO Box 208109
>New Haven, CT 06520-8109
>USA
>Phone:
>+1 203 432-3169 - Office
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>
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