Authors / CoAuthors
Edwards, D. | Boreham, C. | Buckler, T. | Cherukoori, R. | Sedgmen, A.
Abstract
<div>The soil gas database table contains publicly available results from Geoscience Australia's organic geochemistry (ORGCHEM) schema and supporting oracle databases for gas analyses undertaken by Geoscience Australia's laboratory on soil samples taken from shallow (down to 1 m below the surface) percussion holes. Data includes the percussion hole field site location, sample depth, analytical methods and other relevant metadata, as well as the molecular and isotopic compositions of the soil gas with air included in the reported results. Acquisition of the molecular compounds are by gas chromatography (GC) and the isotopic ratios by gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). The concentrations of argon (Ar), carbon dioxide (CO₂), nitrogen (N₂) and oxygen (O₂) are given in mole percent (mol%). The concentrations of carbon monoxide (CO), helium (He), hydrogen (H₂) and methane (C₁, CH₄) are given in parts per million (ppm). Compound concentrations that are below detection limit (BDL) are reported as the value -99999. The stable carbon (<sup>13</sup>C/<sup>12</sup>C) and nitrogen (<sup>15</sup>N/<sup>14</sup>N) isotopic ratios are presented in parts per mil (‰) and in delta notation as δ<sup>13</sup>C and δ<sup>15</sup>N, respectively.</div><div><br></div><div>Determining the individual sources and migration pathways of the components of natural gases found in the near surface are useful in basin analysis with derived information being used to support exploration for energy resources (petroleum and hydrogen) and helium in Australian provinces. These data are collated from Geoscience Australia records with the results being delivered in the Soil Gas web services on the Geoscience Australia Data Discovery portal at https://portal.ga.gov.au which will be periodically updated.</div>
Product Type
dataset
eCat Id
149321
Contact for the resource
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
Digital Object Identifier
Keywords
- ( Project )
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- EFTF – Exploring for the Future
- ( Project )
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- National Hydrogen
- ( Project )
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- Australia’s Future Energy Resources
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- Soil gas
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- molecular composition
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- isotopic composition
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- National Hydrogen
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- Hydrogen
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- Helium
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- Natural gas
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- Natural hydrogen
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- Gas seepage
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- Fairy Circles
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- Semi-circular depressions
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- Remote Sensing
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- ORGCHEM schema
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- Hydrocarbons
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- Laboratory analyses
- theme.ANZRC Fields of Research.rdf
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- Organic geochemistryIsotope geochemistryExploration geochemistrySoil sciences not elsewhere classifiedsocial and multimedia dataKnowledge and information management
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- Published_External
Publication Date
2024-08-12T02:07:37
Creation Date
2023-12-05T03:00:00
Security Constraints
Legal Constraints
Use - license otherRestrictions
Status
Purpose
Release of the Soil Gas database table abstract and web services in the Geoscience Australia Data Discovery Portal at https://portal.ga.gov.au
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
<div>Soil gas data from numerous surveys have been acquired in Geoscience Australia's laboratory and are released in several Geoscience Australia records. These data are collated in the Soil Gas database table of the Oracle ORGCHEM schema and released from the Soil Gas web service in the Geoscience Australia portal at https://portal.ga.gov.au</div>
Parent Information
Extents
[-44, -9, 112, 154]
Reference System
GDA94 / geographic 2D (EPSG: 4283)
Spatial Resolution
Service Information
Associations
Source Information