Abstract：The architecture of coral reefs, which support the world’s most diverse marine ecosystem, relies heavily on the fast biogenic carbonate accretion. In recent decades, the worldwide decreasing of coral calcification rate has drawn increasing concerns. The decreasing of coral calcification rate was proposed to link with anthropogenic ocean warming and ocean acidification, but the underlying mechanism remains unknown. The aragonitic skeletons of coral accrete in a semi-isolated extracellular calcifying fluid (CF), whose chemistry properties, especially dissolved inorganic carbon (DICcf) and pHcf, are critical in the biomineralization and growth of coral. Recently, the isotopic composition of Boron (δ11B) and the B/Ca ratio in coral were suggested as the new proxies in reconstructing CF chemistry during coral growing. Here we introduce the fundamental principles of using the joint system of δ11B-B/Ca as the proxy of CF chemistry, review the latest research progress and achievement of applying this system in reconstructing the coral calcification process, and look into the future of this research field.
刘羿, 陈懋卿. 珊瑚钙化流体化学和珊瑚钙化率下降机制研究新进展[J]. 矿物岩石地球化学通报, 2021, 40(5): 1121-1129.
LIU Yi, CHEN Mao-qing. New Progress on Fluid Chemistry of Coral Calcification and Mechanism of the Coral Calcification Rate Decline. Acta Metallurgica Sinica, 2021, 40(5): 1121-1129.
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