GSNI Data Catalogue
The Tellus geochemical surveys of Northern Ireland
Surface soil/ 'A' sample
Samples from the 5–20 cm depth were analysed as follows:
1. BGS laboratory:
a. XRF analysis for major oxides and trace elements on pressed powder pellets.
b. pH: a sub-sample (10 g ±2 g) of the <2 mm fraction (obtained by cone and quartering), slurried with 0.01M CaCl2 solution, with a soil/solution ratio of 1:2.5. Soil pH was measured using a calibrated pH meter.
c. Loss on ignition (LOI): 1 g of milled sample was dried in an oven at 105°C for a minimum of 4 hours. The sample was then heated in a furnace at 450°C for 4 hours. LOI was calculated using the weight loss between the sample heated at 450°C and dried at 105°C.
2. SGS Laboratories (Toronto): aqua regia digestion of a 1 g sub-sample, followed by trace element analysis by ICP-OES and ICP-MS.
Deep soil/ 'S' sample
Samples from the 35–50 cm depth were analysed as follows at SGS Laboratories:
1. Aqua regia digestion of a 1 g sub-sample, followed by trace element analysis by ICP-OES and ICP-MS.
2. Multi acid (HF-HClO4-HCl-HNO3) ‘Near-total’ digestion, followed by trace element analysis by ICP-OES and ICP-MS.
3. Lead fire assay of a 10 g sub-sample of milled material followed by Au, Pd and Pt analysis by ICP-MS.
4. Dilute hydrochloric acid digestion of a 1 g sub-sample followed by sulphate analysis by ICP-OES.
Stream sediments
1. BGS laboratory: XRF analysis for major oxides and trace elements on pressed powder pellets.
2. Acme Analytical Laboratories Ltd. (Vancouver): lead fire assay of a 10 g sub-sample of milled material followed by Au, Pd and Pt analysis by ICP- MS; boron analysis by ICP-MS.
Waters
1. ALcontrol Laboratories, Hoogvliet,Netherlands: anion and NPOC by Ion Chromatography.
2. GTK, Espoo, Finland: trace element analysis by ICP-AES and ICP-MS.
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)
- 2007-12-31
- Citation identifier
- https://gsni-data.bgs.ac.uk/geonetwork/srv/api/records/909a799c-8767-4ad5-a1e1-7b824fb32e28
- Point of contact
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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
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Geology
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Tellus
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- Access constraints
- Other restrictions
- Other constraints
- INSPIRE: no limitations
- Use constraints
- Other restrictions
- Other constraints
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Available to view under the Open Government Licence: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
Please acknowledge that the resource contains Geological Survey of Northern Ireland materials provided under the Open Government Licence.
- Spatial representation type
- Text, table
- Denominator
- 200000
- Language
- English
- Character set
- UTF8
- Topic category
-
- Geoscientific information
- Code
- NIR
))
- Begin date
- 2004-01-01
- End date
- 2007-12-31
- Unique resource identifier
- EPSG:29902
- Unique resource identifier
- EPSG:4258
- Distribution format
-
Name Version CSV
Excel
ESRI Shapefile
ESRI Geodatabase
OCG Geopackage
1.2.1
XYZ
Oasis Montaj Grid
- Hierarchy level
- Series
Conformance result
- Statement
-
For lineage of each output from the Tellus surveys see the individual metadata record.
Metadata
- File identifier
- 909a799c-8767-4ad5-a1e1-7b824fb32e28 XML
- Metadata language
- English
- Parent identifier
-
The Tellus geochemical and geophysical surveys of Northern Ireland
15579da7-a1d5-47db-86a6-01ffb923c84b
- Hierarchy level
- Series
- Hierarchy level name
-
series
- Date stamp
- 2023-11-08T08:32:20
- Metadata standard name
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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
)))