b8aa3ec7-e539-4255-a21a-0c780fbf89f6 eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2024-06-10 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Geochemical products of laboratory-simulated abrasion of natural quartz and alkali feldspar incubated at low temperatures 2024-06-10 creation 2024-06-10 revision 2024-06-10 publication 2024-06-10 released 1.0 https://doi.org/10.5285/b8aa3ec7-e539-4255-a21a-0c780fbf89f6 doi GB/NERC/BAS/PDC/01855 https://data.bas.ac.uk/ NE/S001670/1 award Please cite this item as: Gill-Olivas, B., Telling, J., & Tranter, M. (2024). Geochemical products of laboratory-simulated abrasion of natural quartz and alkali feldspar incubated at low temperatures (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/b8aa3ec7-e539-4255-a21a-0c780fbf89f6 Geochemical data collected during a 40 day incubation of crushed silicate minerals (quartz and alkali feldspar). Quartz and alkali were crushed separately under an oxygen-free atmosphere using a planetary ball mill. The crushed minerals where then incubated in serum vial under with oxygen-limited water, in an oxygen-free N2 atmosphere at 4 degrees C. Headspace gases were collected before the addition of water. Then, headspace gas samples and the water samples were collected 24, 48, 120, 240, 360 and 720 hours after the addition of water. Headspace gas samples were analysed for CH4, CO2 and H2 and O2. Water fraction samples were analysed for anions and organic acids (including acetate, formate, F-, Cl-, NO2-, NO3- and SO4 2-), cations (including Na+, K+, Mg2+ and Ca2+) and total dissolved iron (dFe). The research was supported by NERC grant NE/S001670/1, CRUSH2LIFE (BGO, MT, JT) and by European Research Council (ERC) Synergy Grant DEEP PURPLE under the European Union's Horizon 2020 Research and Innovation Program (Grant Number 856416). No credit. completed Gill-Olivas, Beatriz Aarhus Universitet Researcher author Telling, Jon Newcastle University Researcher author Tranter, Martyn Aarhus Universitet Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Land Surface > Erosion/Sedimentation > Weathering EARTH SCIENCE > Solid Earth > Geomorphology > Glacial Landforms/Processes EARTH SCIENCE > Solid Earth > Geochemistry theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Crushing Feldspar Geochemistry Mechanochemistry Microcosm incubations Quartz Subglacial theme Land cover Geology theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/ otherRestrictions This data is governed by the NERC data policy and supplied under Open Government Licence v.3 otherRestrictions None. url url crossReference textTable eng utf8 environment -180.0 180.0 -90.0 90.0 2020-06-01 2020-08-01 It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor bytes 1 http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=b8aa3ec7-e539-4255-a21a-0c780fbf89f6 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: 1. Sample preparation and dry crushing Quartz (Madagascar) and alkali feldspar (Norway) samples purchased from the Geology Superstore (http://www.geologysuperstore.com) were washed with 18.2 megaohm cm-1 water and dried at 75 degrees C for over 18 hours. Minerals were then wrapped in several layers of paper roll (to avoid metal-rock interaction) and broken down using a sledgehammer on a metal plate. Crushed feldspar samples were washed again using 18.2 megaohm cm-1 water, the 63 um to 2 mm size fraction was collected and dried at 100 degrees C prior to furnacing at 450 degrees C for four hours to remove any trace organics. Quartz samples were washed using 18.2 megaohm cm-1 water, the 63 um to 2 mm size fraction was collected and dried at 100 degrees C prior to furnacing at 1000 degrees C for two hours, to remove any organics and in an attempt to remove fluid inclusions (Bray et al., 1991, Kuznetsov et al., 2012). Crushed minerals were then milled under an oxygen-free nitrogen atmosphere (zero grade, BOC), using a Fritsch Planetary Mono Mill Pulverisette 6 at 500 r.p.m. for 30 mins. Roughly 15g of sample were crushed in the ball mill at any one time. Gas samples of the ball mill headspace were taken both before and after milling the samples. This process was repeated 10 times to generate sufficient crushed sample for sacrificial incubations of the minerals. After milling, the minerals were transferred to a Coy Vinyl Anaerobic Chamber (CoyLabs, MI, US), previously flushed repeatedly with zero grade N2 until Oxoid(TM) Resazurin Anaerobic Indicator (BR0055B, Thermo Fisher Scientific Inc) indicated anaerobic conditions. Within this chamber, crushed samples were transferred into a large serum vial, which was sealed with grey butyl rubber stoppers (previously boiled in 1 M NaOH for 1 hour and rinsed 6x with 18.2 megaohm cm-1 water), and crimp sealed. The headspace of the vial was then flushed with oxygen-free-N2 for 2 mins and stored in the dark until incubation. 2. Microcosm experiments Six x 6 g triplicate samples, one for each time point, were weighed into 50 ml borosilicate serum bottles (previously acid washed, rinsed 6 x with 18.2 megaohm cm-1 water, and furnaced at 450 degrees C for 4 hours). They were placed into an anaerobic chamber which had been repeatedly flushed with N2 until an Oxoid(TM) Resazurin Anaerobic Indicator showed that the headspace was anoxic. The serum bottles were then sealed with thick blue butyl rubber stoppers, previously boiled in 1 M NaOH for 1 hour, soaked in purite overnight and rinsed 6 times with 18.2 megaohm cm-1 water, which in turn were crimp sealed. The sealed vials were flushed for 2 mins with oxygen-free-N2 and stored at 0 degrees C until the addition of water and the start of the incubation experiments. Triplicate blank vials were prepared for each time point following the same methods. Once all vials were crimped and flushed, approximately 8 ml of 18.2 megaohm cm-1 water (flushed with N2 for over an hour) at 0 degrees C were added to each vial. 3. Headspace analysis Serum bottles were analysed prior to the addition of water by over pressurising the bottles with 10 mL of oxygen-free N2 (zero grade, BOC). A 10 mL headspace gas aliquot was transferred into a 5.9 mL double-wadded Exetainer(R) (Labco, Lampeter, UK) using a gas-tight syringe. Approximately 8 mL of 18.2 megaohm cm-1 water (at 4 degrees C and sparged with oxygen-free N2 for over an hour) was then added to the serum bottles. The headspace in the vials was subsampled after 24 hours following the same method. Headspace samples were then taken at 48, 120, 240, 360 and 720 hours after the addition of water to the vials, following this same procedure. A 5 mL gas subsample was taken from the exetainers and analysed using an Agilent 8860 Gas Chromatograph (Agilent Technologies, Santa Clara, CA, USA). Concentrations of CH4 and CO2 were determined by a...(34) Data collection: List of instrumentation mentioned in methodology: Fritsch Planetary Mono Mill Pulverisette 6 (Fritsch Milling and Sizing, NC, USA) Coy Vinyl Anaerobic Chamber (CoyLabs, MI, US) Agilent 8860 Gas Chromatograph (Agilent Technologies, Santa Clara, CA, USA) Dionex ICS 6000 (Thermo Fischer Scientific, MA, US) Gallery Automated Photometric Analyzer (Thermo Fischer Scientific, MA, US) NOVA 1200e BET Analysis System (Aanton-Paar, Austria) Data quality: Concentrations of gases were calculated using a standard-curve generated from the dilution of a mixed gas standard (173738-AH-C, BOC). Standards were run daily and gave a CV of 1.0 % (n = 15) for H2, with a limit of detection (LOD) of 9.6 ppm, equivalent to 4.4 nmol g-1, a CV of 0.8 % (n = 15) for CH4, with a LOD of 0.1 ppm, equivalent to 0.04 nmol g-1 and a CV of 0.9 % (n = 15) for CO2, with a LOD of 0.1 ppm, equivalent to 0.05 nmol g-1. Analysis of anions and organic acids, including acetate (LOD: 1.1 ppb, equivalent to 0.02 nmol g-1; CV: 1.4%), formate (LOD: 0.7 ppb, equivalent to 0.02 nmol g-1; CV: 2.3%), F- (LOD: 1.9 ppb, equivalent to 0.13 nmol g-1, CV: 8%), Cl- (LOD: 1.1 ppb, equivalent to 0.04 nmol g-1, CV: 2.6%), NO2- (LOD: 2.2 ppb, equivalent to 0.06 nmol g-1, CV: 2.2%), NO3- (LOD: 1.8 ppb, equivalent to 0.04 nmol g-1, CV: 1.9%), and SO42- (LOD: 3 ppb, equivalent to 0.4 nmol g-1; CV: 7%) and cations, including: Na+ (LOD: 0.3 ppb, equivalent to 0.50 nmol g-1; CV: 0.3%), K+ (LOD: 0.4 ppb, equivalent to 0.36 umol g-1; CV: 0.6%), Mg2+ (LOD: 1.6 ppb, equivalent to 0.26 umol g-1; CV: 1.0%) and Ca2+ (LOD: 1.1 ppb, equivalent to 0.35 umol g-1; CV: 1.1%). Total dissolved iron (dFe): LOD of 13 ppb, equivalent to 1.58 nmol g-1. asNeeded completed