Element ratios of seawater and of aragonite precipitated in vitro from seawater at 25°C over variable pH and seawater saturation state and in the presence and absence of amino acids (aspartic acid, glutamic acid and glycine)
| Dataset title | Element ratios of seawater and of aragonite precipitated in vitro from seawater at 25°C over variable pH and seawater saturation state and in the presence and absence of amino acids (aspartic acid, glutamic acid and glycine) |
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| Dataset creators | Nicola Allison, University of St Andrews Maria Cristina Castillo Alvarez, University of St Andrews Adrian Finch, University of St Andrews Ed Hathorne, GEOMAR Kiel, Germany Kirsty Penkman, University of York Roland Kroger, University of York Matthieu Clog, SUERC, University of Glasgow |
| Dataset theme | Geoscientific Information |
| Dataset abstract | Strontium/calcium, magnesium/calcium, lithium/calcium and boron/calcium ratios of 107 aragonite samples precipitated in vitro using a pH stat titrator using the constant composition technique between August 2020 and April 2022. Measured seawater pH and dissolved inorganic carbon concentrations (DIC) are used to estimate the seawater aragonite saturation state (O) of each precipitation. Aragonite precipitation rates are estimated from the rate of titrant dosing. The trace element contents of the solid produced in the experiment was corrected for the composition of the seed used as a surface for aragonite growth. Seawater [Sr], [Mg], [Li], [B] and [Ca] were also measured and seawater [B(OH)4-] is estimated from total seawater [B] and pH. Data were collected to determine how changes in the calcification fluids of calcareous organisms affect aragonite precipitation. Data were collected by Cristina Castillo Alvarez and Ed Hathorne and interpreted by Cristina Castillo Alvarez, Nicola Allison, Adrian Finch, Kirsty Penkman, Roland Kröger, Ed Hathorne and Matthieu Clog. |
| Dataset content dates | 03/08/2020 to 29/04/2022 |
| Dataset spatial coverage | Not applicable |
| Dataset supply format | csv |
| Dataset language | English-United Kingdom |
| Dataset discovery metadata record | Discovery Link to the dataset's BGS Discovery Metadata record |
| Dataset publisher | NERC EDS National Geoscience Data Centre |
| Dataset publication date | 5th November 2024 |
| Dataset digital object identifier (DOI) | 10.5285/9d78d62e-19c1-4ebf-bd1b-2daaa325afac |
| Dataset citation text | Allison, N., Castillo Alvarez, M.C., Finch, A., Hathorne, E., Penkman, K., Kroger, R., Clog, M. (2024). Element ratios of seawater and of aragonite precipitated in vitro from seawater at 25°C over variable pH and seawater saturation state and in the presence and absence of amino acids (aspartic acid, glutamic acid and glycine). NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/9d78d62e-19c1-4ebf-bd1b-2daaa325afac |
| Constraints and terms of use | This data set is available under Open Government Licence, subject to the following acknowledgement accompanying any reproduced materials: "Contains data supplied by permission of the Natural Environment Research Council [YEAR]". |
| Access the dataset | https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item186473 |
| Further Information | Associated Paper: Castillo Alvarez , M C , Penkman , K , Kroger , R , Finch , A A , Clog , M , Hathorne , E & Allison , N 2024 , ' B(OH) 4 - and CO 3 2- do not compete for incorporation into aragonite in synthetic precipitations at pH total 8.20 and 8.41 but do compete at pH total 8.59 ' , Geochimica et Cosmochimica Acta , vol. 379 , pp. 39-52 . https://doi.org/10.1016/j.gca.2024.06.036 |