#thinsectionthursday — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #thinsectionthursday, aggregated by home.social.
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A garnet muscovite schist in cross-polarized light. Horizontal field of view ~ 4cm.
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Plain light thin section (~ 4 cm wide)
Pale pink garnets (inclusion-rich cores and inclusion-free rims) surrounded by mostly biotite.From the Nuvvuagittuq formation near #Inukjuak Canada.
Coupled Sm-Nd isotopes suggest that the original rock (the protolith) may be as old as 4.3 billion years. This sample has been pervasively metamorphosed at least four times since then.
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Plain light thin section (~ 4 cm wide)
Pale pink garnets (inclusion-rich cores and inclusion-free rims) surrounded by mostly biotite.From the Nuvvuagittuq formation near #Inukjuak Canada.
Coupled Sm-Nd isotopes suggest that the original rock (the protolith) may be as old as 4.3 billion years. This sample has been pervasively metamorphosed at least four times since then.
-
Plain light thin section (~ 4 cm wide)
Pale pink garnets (inclusion-rich cores and inclusion-free rims) surrounded by mostly biotite.From the Nuvvuagittuq formation near #Inukjuak Canada.
Coupled Sm-Nd isotopes suggest that the original rock (the protolith) may be as old as 4.3 billion years. This sample has been pervasively metamorphosed at least four times since then.
-
Plain light thin section (~ 4 cm wide)
Pale pink garnets (inclusion-rich cores and inclusion-free rims) surrounded by mostly biotite.From the Nuvvuagittuq formation near #Inukjuak Canada.
Coupled Sm-Nd isotopes suggest that the original rock (the protolith) may be as old as 4.3 billion years. This sample has been pervasively metamorphosed at least four times since then.
-
Plain light thin section (~ 4 cm wide)
Pale pink garnets (inclusion-rich cores and inclusion-free rims) surrounded by mostly biotite.From the Nuvvuagittuq formation near #Inukjuak Canada.
Coupled Sm-Nd isotopes suggest that the original rock (the protolith) may be as old as 4.3 billion years. This sample has been pervasively metamorphosed at least four times since then.