Advantages of doubly polished thin sections for the study of microfossils in volcanic rock |
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Authors: | M Ivarsson |
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Institution: | (1) Dept. of Geology and Geochemistry, Stockholm University, Stockholm, Sweden |
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Abstract: | Doubly polished thin sections, originally prepared for fluid inclusion studies, present great advantages in the study of microfossils
in volcanic rocks. Better visibility and light conditions, variation in thickness of the thin sections and the possibility
to combine fluid inclusion studies with microfossil studies lead to a wide range of advantages over ordinary thin sections.
This includes the study of morphology, internal microstructures, colonies, association with the substrate that microfossils
are attached to and geological and environmental context in which the microfossil once lived. When meeting the criteria of
microfossil recognition the advantages of doubly polished thin sections are substantial and can be crucial in distinguishing
between biogenic microfossils and abiotically formed abiomorphs. |
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