Extended Data Fig. 3: SEM images of CaCO3 precipitates on the leaf surface of Vallisneria americana collected from Susquehanna Flats in 2018.
From: Chesapeake Bay acidification buffered by spatially decoupled carbonate mineral cycling
a, semi-spherical crystallites; b, ellipsoidal crystallites; c, polycrystalline maze-like aggregates; d, aggregates with other materials; e, arborisation-like aggregates; f, rice-like aggregates. The atomic composition in Spectrum 32: 41.8% C, 18.4% Ca, 17.2% O, 10.5% K, 6.5% C, 1.9% Na, 1.6% S, 1.3% Mg, 0.8% P; Spectrum 27: 40.8% C, 25.2% O, 14.4% Ca, 9.2% N, 5.3% K, 2.4% Mg, 1.6% P, 1.0% Na; Spectrum 1: 42.9% O, 27.7% Ca, 25.4% C, 1.4% K, 1.2% Si, 0.9% Al, 0.2% Na, 0.2% Mg; sum spectrum in (e): 31.1% C, 29.9% O, 22.3% Ca, 4.6% Fe, 4.4% Si, 3.8% Al, 2.0% K, 1.9% Mg; Spectrum 13: 41.6% O, 38.1% Ca, 12.5% C, 3.7% K, 1.5% Cl, 1.1% Mg, 0.9% Si, 0.5% Na, 0.2% Al.
