Fig. 8 | Heritage Science

Fig. 8

From: Biofouling and biomineralization of tubular concretions attached to Longquan celadon from Shengbeiyu shipwreck, China (14th Century CE): a multi-analytical case study

Fig. 8

FT-IR and Raman analysis of tubular type of bio-concretion samples. a FT-IR spectra of samples No.1–8. b Region of interest (amide I band) in the second order derivative spectra of each spectrum shown in a. c Raman spectra of sample N1, N7, and different positions on the fracture surfaces of sample N10 as well as N11 (the spot scanning points of spectra 1, 2, 3, 4 and 5 are marked in Fig. 4a, b with red dots). d Raman spectra of attachment surface of sample N1 and N7, along with Raman spectra of different positions at the interface between bio-concretions and glaze of sample N10 (the spot scanning points of spectra 7, 8 and 9 are marked in Fig. 4a with tiny red squares)

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