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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

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

This dataset spatially represents an interpolated grid of the Otago Schist lineation azimuth (0-360 degree azimuth).

Credit

Martin, A.P., Cox, S.C., Smith Lyttle, B. 2016

Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role

GNS Science

GMNZ Data Manager

spatialdata@gns.cri.nz

Custodian
Maintenance and update frequency
As needed
Place
  • Middlemarch

  • New Zealand

  • Otago

Theme
  • minerals

  • geophysics

  • geology

  • lineation

Keywords
  • Downloadable Data

Use limitation

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

N
S
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Reference system identifier
EPSG / 2193 / 8.6.2
Distribution format
Name Version

File Geodatabase Raster Dataset

OnLine resource
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

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
Parent identifier

B81CCE55-D2E2-42B7-BE8D-6096FE1EA886

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
Organisation name Individual name Electronic mail address Role

GNS Science

GMNZ Data Manager

spatialdata@gns.cri.nz

Custodian
 
 

Overviews

Spatial extent

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S
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W
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Keywords

geology geophysics lineation minerals

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