90381317-d7f3-21ad-e054-002128a47908 English dataset British Geological Survey +44 115 936 3100 Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-04-14 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13607505 WGS 84 / UTM zone 37N (EPSG::32637) Composition of Soil-Gas Efflux From the Artu Jawe Fault Zone, near Aluto volcano, Ethiopia (NERC grant NE/L013932/1) 2019-08-13 creation http://data.bgs.ac.uk/id/dataHolding/13607505 Composition of Soil-Gas Efflux From the Artu Jawe Fault Zone, near Aluto volcano, Ethiopia. Data are referenced in Hutchison et al., 2016a: Causes of unrest at silicic calderas in the East African Rift: New constraints from InSAR and soil-gas chemistry at Aluto volcano, Ethiopia; https://doi.org/10.1002/2016GC006395. Whaler, Kathy University of Edinburgh United Kingdom kathy.whaler@ed.ac.uk principalInvestigator Fiona Iddon University of Cambridge Department of Earth Sciences Downing Street Cambridge CB2 3EQ not available pointOfContact notApplicable https://resources.bgs.ac.uk/images/geonetworkThumbs/90381317-d7f3-21ad-e054-002128a47908.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Soil gas sampling Rift faults BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data dataCentre NERC_DDC otherRestrictions no limitations The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible. otherRestrictions 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. Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" English geoscientificInformation ISO 3166_1 alpha-2 2009 revision ET ISO 3166_1 alpha-3 2009 revision ETH British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation ETHIOPIA [id=692000] 38.7500 38.8500 7.7500 7.8500 2014-02-01 2014-02-28 Microsoft Excel witheld https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item129730 WWW:DOWNLOAD-1.0-http--download Data download https://doi.org/10.1002/2016GC006395 WWW:LINK-1.0-http--related Citation Information - Digital Object Identifier (DOI) information dataset dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false Table 3: Gas samples were analysed at the University of New Mexico. CH4, CO2, H2, and CO concentrations were measured using gas chromatography (GC) techniques. Ar, He, N2, and O2 were measured via quadrupole mass spectrometry (QMS). Analytical uncertainty for the GC measurements is at ±5%, and QMS analyses at <0.1% (concentration). Table S1: CO2-δ13C measurements were made at at INGV (Naples) and by Isotope Ratio Mass Spectrometer for seven samples at the Center for Stable Isotopes, UNM. Results for CO2-δ13C are shown in delta notation as per mil values (δ‰) relative to PDB (Pee Dee belemnite) and are characterized by a δ13C standard error of ±0.1‰.