GSNI Data Catalogue
The Tellus lithogeochemical survey of Northern Ireland
A reconnaissance rock sampling programme was completed after the main phase of Tellus fieldwork. A total of 114 samples were collected. Samples were collected randomly from outcrops across Northern Ireland.
Several donated samples of mineralisation from Curraghinalt (gold bearing base metals), South Armagh (base-metal) and Whitespots (lead mineralisation) were incorporated into the lithogeochemical program. In all cases only fresh unaltered material was collected/ analysed. At each site a c.15 kg representative sample of each outcrop was collected. Samples were prepared at the laboratories of the British Geological Survey, Keyworth, Nottingham. Preparation consisted of an initial thorough washing of the sample to remove any rock or soil debris. Samples were then chipped and 100 g of material was milled in an agate ball-mill to a specification identical to that for the soils. The rock powders were dried overnight at 105°C before loss on ignition (L.O.I.) and fused bead production. Any samples with visible mineralisation were prepared in a similar manner but in a separate facility dedicated to higher grade materials. The fused bead XRFS analysis was completed at the laboratories of the British Geological Survey.
All other analytical tests were completed at SGS Laboratories (Toronto). The analytical methods and detection limits for the lithogeochemical trace element suite are presented in Table 2 in the report https://nora.nerc.ac.uk/id/eprint/14008/1/OR07022.pdf. The parameters of lithogeochemical analyses were as follows;
1. Fused bead XRF- for major oxides.
2. Loss of ignition- determined after 1 hour at 1050°C.
3. Au, Pd, Pt Fire Assay/ ICP-MS- a 30 g sample was analysed. SGS Laboratories method code FAM303.
4. Multi-element suite by sodium peroxide fusion- completed on a 0.5 g sample with analysis by ICP-MS. SGS Laboratories method code ICM90A.
5. F by Specific Ion- completed on a 0.5 g sample. SGS Laboratories method code ISE07A.
6. C by Leco- completed on a 0.5 g sample. SGS Laboratories method code CSA01V.
7. S by Leco- completed on a 0.5 g sample. SGS Laboratories method code CSA06V.
8. Hg by Cold-Vapour Atomic Absorption Spectrometry- completed on a 0.6 g sample. SGS Laboratories method code CVA14C.
Prior to analysis certified reference materials and secondary reference materials were inserted into the sample batches. All reference materials were concealed in the sample batches sent for analysis. Chinese lithogeochemical certified reference materials GSR-1 to GSR-6 were used for all analytical tests (China National Analysis Center for Iron and Steel, 1986), except Au, Pd and Pt by fire assay.
The parameters of the GSR-1 to 6 reference materials are as follows;
GSR-1 Grey medium-grained biotite granite sample from Qianlishan rock body in Chenzhou, Hunan. Also referred to as GBW07103.
GSR-2 Mesozoic quartz hornblende andesite from the vicinity of the Meishan iron mine in Nanjing, Jiangsu. Also referred to as GBW07104.
GSR-3 Cenozoic alkali-olivine basalt from Zhangjiakou, Hebei. Also referred to as GBW07105.
GSR-4 Light and dark arkosic quartz-sandstone from Group Wutong, Silurian system in Tongling, Anhui. Also referred to as GBW07106.
GSR-5 Shale from Group Chuanlinggou, Sinian system in Jixian, Tianjin. Also referred to as GBW07107.
GSR-6 Banded argillaceous limestone, Triassic system in Tongling, Anhui. Also referred to as GBW07108.
For the analysis of Au, Pd, and Pt by fire assay the following CANMET Reference Materials (RMs) were used; TDB-1, WPR-1, and WGB-1. Separate insertions of the CANMET RM’s were also analysed and reported by SGS as part of the fire assay analysis. All GSR series and CANMET RMs were inserted into their respective batches at a rate of three samples per 87 field samples. Four field duplicate pairs were collected per field batch (100 samples). Secondary reference soils Antbas, Dal, LwrPala and S13B were inserted in rotation at a rate of two samples per field batch. Due to the unavailability of lithogeochemical secondary reference materials it was not possible to matrix match SRMs to the survey.
All analyses at SGS Laboratories were completed by a combination of ICP-OES and ICP-MS instrumentation. Data were reported as censored and uncensored datasets.
The Tellus survey was funded by the Department of Enterprise, Trade and Investment (DETI), now the Department for the Economy (DfE) in Northern Ireland and the INTERREG IVA programme of the European Union (EU) Regional Development Fund.
Simple
- Date (Creation)
- 2007
- Citation identifier
- https://gsni-data.bgs.ac.uk/geonetwork/srv/api/records/1755e746-810f-459f-9dd0-fdd7e0e88294
- Point of contact
-
Organisation name Individual name Electronic mail address Role Geological Survey of Northern Ireland
Publisher
- Maintenance and update frequency
- Not planned
- Metadata author
-
Organisation name Individual name Electronic mail address Role Geological Survey of Northern Ireland
Custodian
-
GEMET - INSPIRE themes, version 1.0
-
-
Geology
-
Tellus
-
- Keywords
-
- Access constraints
- Other restrictions
- Other constraints
- INSPIRE: no limitations
- Use constraints
- Other restrictions
- Other constraints
- Provided under the Open Government Licence: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ We request that you acknowledge that the resource contains Geological Survey of Northern Ireland materials provided under the Open Government Licence.
- Spatial representation type
- Vector
- Denominator
- 250000
- Language
- English
- Character set
- UTF8
- Topic category
-
- Geoscientific information
- Code
- NIR
))
- Begin date
- 2005-01-01
- End date
- 2006-12-31
- Unique resource identifier
- EPSG:29902
- Unique resource identifier
- EPSG:4258
- Unique resource identifier
- EPSG:3857
- Distribution format
-
Name Version OGC Geopackage
1.2.1
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://nora.nerc.ac.uk/id/eprint/14008/1/OR07022.pdf Methodology Report
- Hierarchy level
- Dataset
Conformance result
- Statement
-
Information on survey, processing and data conditioning can be found in the following reports:
A Guide to the Tellus Data edited by Young, M.E. and Donald, A.W. can be downloaded at https://nora.nerc.ac.uk/id/eprint/509171/
Methods used in the Tellus Geochemical Mapping of Northern Ireland Tellus Geochemistry Programme Open Report OR/07/022 https://nora.nerc.ac.uk/id/eprint/14008/1/OR07022.pdf
A reconnaissance rock sampling programme was completed after the main phase of Tellus fieldwork. A total of 114 samples were collected. Samples were collected randomly from outcrops across Northern Ireland.
Several donated samples of mineralisation from Curraghinalt (gold bearing base metals), South Armagh (base-metal) and Whitespots (lead mineralisation) were incorporated into the lithogeochemical program. In all cases only fresh unaltered material was collected/ analysed. At each site a c.15 kg representative sample of each outcrop was collected. Samples were prepared at the laboratories of the British Geological Survey, Keyworth, Nottingham. Preparation consisted of an initial thorough washing of the sample to remove any rock or soil debris. Samples were then chipped and 100 g of material was milled in an agate ball-mill to a specification identical to that for the soils. The rock powders were dried overnight at 105°C before loss on ignition (L.O.I.) and fused bead production. Any samples with visible mineralisation were prepared in a similar manner but in a separate facility dedicated to higher grade materials. The fused bead XRFS analysis was completed at the laboratories of the British Geological Survey.
All other analytical tests were completed at SGS Laboratories (Toronto). The analytical methods and detection limits for the lithogeochemical trace element suite are presented in Table 2 in the report https://nora.nerc.ac.uk/id/eprint/14008/1/OR07022.pdf. The parameters of lithogeochemical analyses were as follows;
1. Fused bead XRF- for major oxides.
2. Loss of ignition- determined after 1 hour at 1050°C.
3. Au, Pd, Pt Fire Assay/ ICP-MS- a 30 g sample was analysed. SGS Laboratories method code FAM303.
4. Multi-element suite by sodium peroxide fusion- completed on a 0.5 g sample with analysis by ICP-MS. SGS Laboratories method code ICM90A.
5. F by Specific Ion- completed on a 0.5 g sample. SGS Laboratories method code ISE07A.
6. C by Leco- completed on a 0.5 g sample. SGS Laboratories method code CSA01V.
7. S by Leco- completed on a 0.5 g sample. SGS Laboratories method code CSA06V.
8. Hg by Cold-Vapour Atomic Absorption Spectrometry- completed on a 0.6 g sample. SGS Laboratories method code CVA14C.
Prior to analysis certified reference materials and secondary reference materials were inserted into the sample batches. All reference materials were concealed in the sample batches sent for analysis. Chinese lithogeochemical certified reference materials GSR-1 to GSR-6 were used for all analytical tests (China National Analysis Center for Iron and Steel, 1986), except Au, Pd and Pt by fire assay.
The parameters of the GSR-1 to 6 reference materials are as follows;
GSR-1 Grey medium-grained biotite granite sample from Qianlishan rock body in Chenzhou, Hunan. Also referred to as GBW07103.
GSR-2 Mesozoic quartz hornblende andesite from the vicinity of the Meishan iron mine in Nanjing, Jiangsu. Also referred to as GBW07104.
GSR-3 Cenozoic alkali-olivine basalt from Zhangjiakou, Hebei. Also referred to as GBW07105.
GSR-4 Light and dark arkosic quartz-sandstone from Group Wutong, Silurian system in Tongling, Anhui. Also referred to as GBW07106.
GSR-5 Shale from Group Chuanlinggou, Sinian system in Jixian, Tianjin. Also referred to as GBW07107.
GSR-6 Banded argillaceous limestone, Triassic system in Tongling, Anhui. Also referred to as GBW07108.
For the analysis of Au, Pd, and Pt by fire assay the following CANMET Reference Materials (RMs) were used; TDB-1, WPR-1, and WGB-1. Separate insertions of the CANMET RM’s were also analysed and reported by SGS as part of the fire assay analysis. All GSR series and CANMET RMs were inserted into their respective batches at a rate of three samples per 87 field samples. Four field duplicate pairs were collected per field batch (100 samples). Secondary reference soils Antbas, Dal, LwrPala and S13B were inserted in rotation at a rate of two samples per field batch. Due to the unavailability of lithogeochemical secondary reference materials it was not possible to matrix match SRMs to the survey.
All analyses at SGS Laboratories were completed by a combination of ICP-OES and ICP-MS instrumentation. Data were reported as censored and uncensored datasets.
Metadata
- File identifier
- 1755e746-810f-459f-9dd0-fdd7e0e88294 XML
- Metadata language
- English
- Parent identifier
-
The Tellus geochemical surveys of Northern Ireland
909a799c-8767-4ad5-a1e1-7b824fb32e28
- Hierarchy level
- Dataset
- Date stamp
- 2024-10-23T15:15:08.399967Z
- Metadata standard name
-
ISO 19115:2003/19139
- Metadata standard version
-
1.0
- Metadata author
-
Organisation name Individual name Electronic mail address Role Geological Survey of Northern Ireland
Point of contact
)))