Evans, Guy NSeyfried Jr., William E2024-06-272024-06-272024-06-27https://hdl.handle.net/11299/264007Major chemical parameters and trace elemental analyses of nine seafloor vent fluid samples obtained from 'Sanya' vent at Main Endeavour Field, northeast Pacific Ocean. Sample were obtained between October 2019 and May 2020 using a serial vent fluid sampler developed at University of Minnesota deployed using the NEPTUNE cabled array of Ocean Networks Canada. Samples were analyzed at University of Minnesota in 2020-2022 using pH electrode, iodometric titration, gas chromatography, ion chromatography, inductively coupled plasma optical emission spectrometry and inductively coupled plasma mass spectrometry. Elemental analyses include analyses of reverse aqua regia digestions of sampler particulate fractions, which are mathematically added to analyses for acidified dissolved fractions.This dataset contains chemical and elemental analyses of a vent fluid time series collected from 'Sanya' vent, Main Endeavour Field (northeast Pacific Ocean, 47° 57’ N, 129° 06’ W, ~2200 m water depth) using the U. Minn. serial vent fluid sampler, deployed at the MEF South science node of Ocean Networks Canada's NEPTUNE cabled observatory. The time series comprises nine samples of seafloor vent fluids collected from 2019-10-08 to 2020-05-26. Sampling methods are described in: Seyfried Jr, W. E., Tan, C., Wang, X., Wu, S., Evans, G. N., Coogan, L. A., Mihaly, S. F., & Lilley, M. D. (2022). Time series of hydrothermal vent fluid chemistry at Main Endeavour Field, Juan de Fuca Ridge: Remote sampling using the NEPTUNE cabled observatory. Deep Sea Research Part I: Oceanographic Research Papers, 186, 103809. Analytical methods are described in: Evans, G. N., Seyfried Jr, W. E., & Tan, C. (2023). Nutrient transition metals in a time series of hydrothermal vent fluids from Main Endeavour Field, Juan de Fuca Ridge, Pacific Ocean. Earth and Planetary Science Letters, 602, 117943. Analytical methods includeseafloor hydrothermaltrace elementsMain Endeavour FieldElemental analyses of 2019-2020 vent fluid time series from 'Sanya' vent, Main Endeavour Field (northeast Pacific Ocean, 47° 57’ N, 129° 06’ W, ~2200 m water depth) collected using the U. Minn. serial vent fluid samplerDataset