Geochemical products of laboratory-simulated abrasion of natural quartz and alkali feldspar incubated at low temperatures

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).

Alternate title: Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01855

Date (Publication): 2024-06-10

Citation identifier: http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01855

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey		pdc@bas.ac.uk	Custodian
NERC EDS UK Polar Data Centre	Gill-Olivas, B., Telling, J., & Tranter, M.	pdc@bas.ac.uk	Originator

Maintenance and update frequency: Unknown

Keywords

NDGO0001

NERC OAI Harvesting

NERC_DDC

GCMD Parameter Valids

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

BAS Free-text keywords

Crushing
Feldspar
Geochemistry
Mechanochemistry
Microcosm incubations
Quartz
Subglacial

Use limitation: This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.

Access constraints: Other restrictions

Other constraints: This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.

Language: English

Topic category

Environment

Begin date: 2020-06-01

End date: 2020-08-01

Reference system identifier: OGP / urn:ogc:def:crs:EPSG::4326

Distribution format

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Polar Data Centre - British Antarctic Survey		pdc@bas.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
http	http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=b8aa3ec7-e539-4255-a21a-0c780fbf89f6	GET DATA

Hierarchy level: Dataset

Domain consistency

Measure identification: INSPIRE / Conformity_001

Conformance result

Title: INSPIRE Data Specification on unknown theme Guidelines

Date

Explanation: See the referenced specification

Pass: No

Statement: 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.