Date (Creation)

2024-06-10

Date (Revision)

2024-06-10

Date (Publication)

2024-06-10

Date (released)

2024-06-10

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/b8aa3ec7-e539-4255-a21a-0c780fbf89f6

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01855

Codespace

https://data.bas.ac.uk/

Unique resource identifier

NE/S001670/1

Codespace

award

Other citation details

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

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Aarhus Universitet	Gill-Olivas, Beatriz		Author
Newcastle University	Telling, Jon		Author
Aarhus Universitet	Tranter, Martyn		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency

As needed

Maintenance note

Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Land Surface > Erosion/Sedimentation > Weathering
• EARTH SCIENCE > Solid Earth > Geomorphology > Glacial Landforms/Processes
• EARTH SCIENCE > Solid Earth > Geochemistry

Theme

• Crushing

• Feldspar

• Geochemistry

• Mechanochemistry

• Microcosm incubations

• Quartz

• Subglacial

GEMET - INSPIRE themes, version 1.0

• Land cover
• Geology

Access constraints

Other restrictions

Other constraints

no limitations to public access

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

License

Other constraints

Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/

Use constraints

Other restrictions

Other constraints

This data is governed by the NERC data policy and supplied under Open Government Licence v.3

Use constraints

Other restrictions

Other constraints

None.

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Environment

Begin date

2020-06-01

End date

2020-08-01

Supplemental Information

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.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)

2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier

urn:ogc:def:crs:EPSG::3031

Version

6.18.3

Hierarchy level

Dataset

Statement

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.

Metadata

File identifier

b8aa3ec7-e539-4255-a21a-0c780fbf89f6 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2024-06-10

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact