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Fig. 2 | Journal of Palaeogeography

Fig. 2

From: First steps in reconstructing Early Jurassic sea water temperatures in the Andean Basin of northern Chile based on stable isotope analyses of oyster and brachiopod shells

Fig. 2

Preparation of the fossil material (modified after Alberti et al. 2012a, 2012b, 2017, 2019). a, b Sections of 5–10 mm thickness were cut from each shell and studied with a cathodoluminescence microscope to select sample areas; ce Three oyster specimens (CH18-006, CH18-017, and CH18-030) were used for high-resolution stable isotope analyses

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