Calcium and copper isotope signatures in hydrothermal sediments as proxies for hydrothermal activity on mid-ocean ridges

Research data for the paper "Calcium and copper isotope signatures in hydrothermal sediments as proxies for hydrothermal activity on mid-ocean ridges" submitted to Geochimica et Cosmochimica Acta. This dataset contains (1) a Word file containing the Ca and Cu isotope compositions of hydrothermal sediments collected from the Carlsberg Ridge, Northwest Indian Ocean; and (2) an Excel file with chemical compositions of the hydrothermal sediments.