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Gas composition in headspace of borehole NB04, Cambodia, southeast of Phnom Penh, 2019 - 2020

Data on gas composition in headspace of borehole NB04. Contains 11 columns of data taken from the headspace of borehole NB04 (at the clay-dominated site) using a GasClam 2.0 (Salamander Group, UK) that continuously measure temperature, atmospheric pressure, borehole pressure, and the percentage of carbon dioxide, oxygen, and methane in the borehole. All data collection for the GOAM project was performed on the same sites located in the Kien Svay district of northern Kandal Province, Cambodia, southeast of Phnom Penh. These sites are referred to as "clay-dominated" and "sand-dominated" in reference to the known lithology and are known for high arsenic concentrations (Richards et al., 2017). Each site contained four 18 m boreholes installed in January 2019 using manual drilling described in Richards et al (2015), spaced evenly about ~1.5 m apart. The boreholes that were located at the clay-dominated site are referred to NB01, NB02, NB03 and NB04. The boreholes that were located at the sand-dominated site are referred to as NB05, NB06, NB07 and NB08. The data taken are from the headspace of borehole NB04 (at the clay-dominated site) This file contains part of the data produced for NERC grant NE/P01304X/1 - called Genetic and molecular basis of organic-arsenic-microbe interactions in arsenic prone aquifers ("GOAM") project. References: Richards, L. A., Lapworth, D. J., Magnone, D., Gooddy, D. C., Chambers, L., Williams, P. J., van Dongen, B. E., Polya, D. A. Dissolved Organic Matter Tracers Reveal Contrasting Characteristics across High Arsenic Aquifers in Cambodia: A Fluorescence Spectroscopy Study. Geoscience Frontiers 2019, 10 (5), 1653-1667. Richards, L. A., Magnone, D., Sovann, C., Kong, C., Uhlemann, S., Kuras, O., van Dongen, B. E., Ballentine, C. J., Polya, D. A. High Resolution Profile of Inorganic Aqueous Geochemistry and Key Redox Zones in an Arsenic Bearing Aquifer in Cambodia. Science of The Total Environment 2017, 590-591, 540-553. Richards, L. A., Magnone, D., van Dongen, B. E., Ballentine, C. J., Polya, D. A. Use of Lithium Tracers to Quantify Drilling Fluid Contamination for Groundwater Monitoring in Southeast Asia. Applied Geochemistry 2015, 63, 190-202.

Simple

Date (Creation)
2024-08-26
Identifier
http://data.bgs.ac.uk/id/dataHolding/13608273
Originator
  University of Manchester - Prof David Polya ( School of Earth and Environmental Sciences )
Williamson Building-G27 , Manchester , M13 9PL , United Kingdom
Originator
  University of Manchester - Prof Jonathan Lloyd ( School of Earth and Environmental Sciences )
Manchester , M13 9PL ,
Originator
  University of Manchester - Dr Naji Bassil ( School of Earth and Environmental Sciences )
Williamson Building , Manchester , M13 9PL ,
Originator
  University of Manchester - Bart van Dongen
Originator
  Swedish University of Agricultural Sciences - Oliver Charles Moore
Department of Forest Mycology and Plant Pathology, Box 7026 , Uppsala , 750 07 , Sweden
Originator
  University of Manchester - Laura A Richards
Originator
  Royal University of Agriculture - Chivuth Kong
Distributor
  British Geological Survey - Enquiries
Point of contact
  British Geological Survey - Enquiries
Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes, version 1.0
  • Geology
BGS Thesaurus of Geosciences
  • Methane
  • Arsenic
  • Groundwater
  • Gases
  • NGDC Deposited Data
dataCentre
  • NGDC Deposited Data
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Other constraints
licenceOGL
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Use constraints
otherRestrictions Other restrictions
Other constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
Begin date
2019-03-19
End date
2020-01-27

Reference System Information

No information provided.
Distribution format
  • MS Excel ()

Distributor
  British Geological Survey - Enquiries
OnLine resource
Data
OnLine resource
Digital Object Identifier (DOI)
Hierarchy level
nonGeographicDataset Non geographic dataset
Other
non geographic dataset

Conformance result

Date (Publication)
2011
Explanation
See the referenced specification
Pass
No

Conformance result

Date (Publication)
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Pass
No
Statement
Tab “GasClam_ClaySite” contains 11 columns of data taken from the headspace of borehole NB04 (at the clay-dominated site) using a GasClam 2.0 (Salamander Group, UK) that continuously measure temperature, atmospheric pressure, borehole pressure, and the percentage of carbon dioxide, oxygen, and methane in the borehole. Divers that continuously measure pressure, temperature, and electrical conductivity (CTD-Diver, Schlumberger Water Services) were suspended from the GasClam unit to a depth of 15 m relative to the top of the well casing and set to record at 60 min intervals. Water-level measurements were corrected for barometric pressure collected from the GasClam units using Diver Office (Version 2012.1, Schlumberger Water Services). Groundwater data were calibrated with reference to the Mekong River Commission elevation datum at the Monitoring Station Phnom Penh Chaktomuk (Bassac).
File identifier
21d7c4ca-09d0-634b-e063-0937940a9eee XML
Metadata language
EnglishEnglish
Hierarchy level
nonGeographicDataset Non geographic dataset
Hierarchy level name
non geographic dataset
Date stamp
2025-11-13
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  British Geological Survey
Environmental Science Centre,Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
+44 115 936 3100
Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13608273
 
 

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