Growing spherulitic calcite grains in saline, hyperalkaline lakes : Experimental evaluation of the effects of Mg-clays and organic acids

Acknowledgements BP Exploration Co. is thanked for funding, and particularly the Carbonate Team (Anna Matthews, Teresa Sabato Ceraldi, and Darryl G. Green) for supporting this research and for fruitful discussions. Mark Anderson, Kim Rosewell, and Tony Sinclair (University of Hull) are thanked for laboratory assistance, and for SEM sample preparation and set-up respectively. The technical and human support from Prof. Jörg Hardege and Maggy A. Harley (University of Hull) was key to perform these experiments. We would like to acknowledge an anonymous reviewer for the detailed and constructive comments, and Brian Jones's editorial handling of the manuscript which is greatly appreciated.

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