saurabh.sen23 Posted October 31, 2016 Share Posted October 31, 2016 How to identify the nature of amphibolite lenses within the marble? No alteration is observed along the boundary, except a thin dark coloured zone (baked margin?) along the amphibolite. At places, the amphibolite varies in the range of less than a cm to tens of cms. calcite lens are preserved within the larger amphibolite lenses. Link to comment Share on other sites More sharing options...
Ophiolite Posted October 31, 2016 Share Posted October 31, 2016 I am not clear what you mean by asking about "the nature of the amphibolite lenses". I don't think you mean identifying their mineralogy, since by describing the lenses as being amphibolite you must have noted their mineral composition. I don't think you mean the structural character of the lenses, since you have also described that. I don't think you mean the origin of the lenses, since - given the context of lenses in marble - that is likely prograde amphibolite facies metamorphism of a dolomite, or limestone with interbedded clays and marls. So, what am I missing? 1 Link to comment Share on other sites More sharing options...
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