Imbricate Stacks and Helmsmen

Have no aptitude for science at all, but love the language of a few of its disciplines. Here are some geology tweets I came across with links to the vocabulary.

TWEET 1: Imbricate stacks of dolostone forming the Naukluft Plateau.

TWEET 2 : Blasskranz range front – see that isoclinal synform in the middle distance? Yah, that’s the Marinoan cap carbonate. SNOWBALL EARTH IN PTYGMATIC FOLDS  (ptymgatic).

…Have also come recently come across the name for birds’ flight feathers: remiges (singular remex, from Latin for “oarsmen”) for such feathers on the wing; rectrices (s. rectrix, from Latin for “helmsman”) for the tail feathers.

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