NZL_GNS_GM5_lineation_azimuth
This data layer is an interpolated grid of lineation azimuth (0-360 degree) in the Otago Schist, at 100m x 100m cell size. Structural observations used in the interpolation were the prominent quartz-rodding lineations derived from QMAP 1:250,000 and local observations by Simon Cox (1:10,000 mapping at Nenthorn and Barewood) and Adam Martin (for Middlemarch CD16 1:50,000 sheet).
Simple
- Date (Creation)
- 2015-06-01
- Presentation form
- Digital map
- Other citation details
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Martin, A.P., Cox, S.C., Smith Lyttle, B. 2016. Geology of the Middlemarch area. GNS Science Geological Map 5. GNS Science, Lower Hutt.
- Purpose
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This dataset spatially represents an interpolated grid of the Otago Schist lineation azimuth (0-360 degree azimuth).
- Credit
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Martin, A.P., Cox, S.C., Smith Lyttle, B. 2016
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role GNS Science
GMNZ Data Manager
Custodian
- Maintenance and update frequency
- As needed
- Place
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Middlemarch
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New Zealand
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Otago
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- Theme
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minerals
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geophysics
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geology
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lineation
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- Keywords
-
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Downloadable Data
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- Use limitation
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Use of these data must acknowledge GNS Science 2016 as the original source of the data under a Creative Commons Attribution 4.0 International License. These data should not be used for site-specific investigations.
- Spatial representation type
- Grid
- Denominator
- 50000
- Language
- English
- Character set
- UTF8
- Topic category
-
- Geoscientific information
- Environment description
-
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959
))
- Reference system identifier
- EPSG / 2193 / 8.6.2
- Distribution format
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Name Version File Geodatabase Raster Dataset
- OnLine resource
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Protocol Linkage Name WWW:LINK-1.0-http--link
https://shop.gns.cri.nz/gnsgm5/ Buy Geological Data
WWW:LINK-1.0-http--link
https://data.gns.cri.nz/gis/rest/services/NZL_GNS_GM5_Geology_of_the_Middlemarch_area ArcGIS Services for the Geological Map of the Middlemarch area
WWW:LINK-1.0-http--link
https://www.gns.cri.nz/Home/Our-Science/Land-and-Marine-Geoscience/Regional-Geology Regional Geology Home
- Statement
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This grid was created using the natural neighbours algorithm in ArcGIS, by converting each structural observation into its unit vector east-west and north-south components (direction cosines), interpolating separate sine and cosine grids from these components, dividing the grids (sin/cos) and inverting values using an atan function. To obtain final azimuths data need to be classified to distinguish the four (+ or -) possible values of cosine and sine values depending on whether the azimuth is 0-90, 90-180, 180-270, or 270-360 degrees.
Metadata
- File identifier
- 73312233-1A6F-4218-B5E0-A4A7126B7672 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2024-06-20T03:37:34.534143Z
- Metadata standard name
-
ISO 19139 Geographic Information - Metadata - Implementation Specification
- Metadata standard version
-
2007
- Metadata author
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Organisation name Individual name Electronic mail address Role GNS Science
GMNZ Data Manager
Custodian
