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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).

Simple

Alternate title
Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01855
Date (Publication)
2024-06-10
Identifier
http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01855
Custodian
  British Antarctic Survey
High Cross, Madingley Road , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Originator
  NERC EDS UK Polar Data Centre - Gill-Olivas, B., Telling, J., & Tranter, M.
High Cross, Madingley , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Maintenance and update frequency
unknown 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
otherRestrictions 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/.
Metadata language
EnglishEnglish
Topic category
  • Environment
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Begin date
2020-06-01
End date
2020-08-01
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
Distributor
  Polar Data Centre - British Antarctic Survey
+44 (0)1223 221400
OnLine resource
GET DATA ( http )
Hierarchy level
dataset Dataset

Domain consistency

Measure identification
INSPIRE / Conformity_001

Conformance result

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.

File identifier
GB_NERC_BAS_PDC_01855 XML
Metadata language
EnglishEnglish
Hierarchy level
dataset Dataset
Date stamp
2024-06-10
Metadata standard name
NERC profile of ISO19115:2003
Metadata standard version
1.0
Point of contact
  British Antarctic Survey
+44 (0)1223 221400
Dataset URI
http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/01855
 
 

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