Regional Geology of Eastern Labrador
Readme File for Excel Point Data

The GIS excel files contain the same data as the GIS layers in the file geodatabase and shapefiles of the same name.  The non-GIS excel files do not contain coordinate information for many of the records.

An explanation of each file is outlined below. For a description of each column of the point data files, please refer to the \Metadata\Metadata_Tables_Spreadsheets.xlsx file.

\GIS Layers
Note that for these excel files, cells in numeric columns containing no data for that record are left blank, whereas the associated GIS shapefile or file geodatabase contain the placeholder code -99 or -999 for blank cells, to keep the cell from being filled with zero’s when opened in a GIS.

Dykes: extracted from Structure layer (included in Structure as well)

GeochronArK: K-Ar and Ar-Ar geochronological data (hyperlinked to Data\Imagery\ScannedGeochron\ArK)

GeochronNdSm: Nd-Sm geochronological data

GeochronRbSr: Rb-Sr geochronological data (hyperlinked to Data\Imagery\ScannedGeochron\RbSr)

GeochronUPb: U-Pb geochronological data (hyperlinked to Data\Imagery\ScannedGeochron\UPb)

Geothermobarometry: geothermobarometric data

MineralOcc: mineral occurrences in eastern Labrador

MineralXRD: minerals identified by XRD method

OxygenIsotopeData: oxygen isotope data (7 records)

Paleomag: paleomagnetic data, some unpublished

PaleomagEmslie: a cross-referencing tool linking Emslie’s paleomag sites, with his field sites and labels used in journal publication

Petrography: petrographic data

Photomicrographs: photomicrographs (hyperlinked to Data\Imagery\Photomicrographs)

Photos: field photographs (hyperlinked to Data\Imagery\ScannedPhotos)

Samples: rock samples collected (hyperlinked to Data\Imagery\ScannedSlabs)

Stations: field station locations

Structure: listing of all structural data for eastern Labrador

StructureFiltered_Outcrop: structural data filtered using S. Colman-Sadd’s PlotSymbol program to move overlapping symbols at the 1:100 000-scale, remove lower priority symbols, and add outcrop locations
	
StructureKinematics: structural kinematic data

WholeRockGeochemistry: whole rock geochemical data with one column of compiled data for each element, as opposed to the non-GIS file below

\Non-GIS Files

StationsMappingPersonnel: names and academic level of mapping personnel

StructuralSymbols: key to NATMAP structural symbols

WholeRockGeochemistry_All: whole rock geochemical data for all samples including duplicates and controls (standards), with separate fields for each element (indicating units) AND analysis method (colour coded); includes separate sheets for Method Comparison graphs, Duplicate Data graphs and a summary list of the Controls.  To plot this data in a GIS, remove all extraneous records where Dupl_Stand = Duplicate and UTMEast = blank.