Table 1: List of variables describing the samples and major elements analysed (see Table 2 for a list of trace elements analysed).

Variable

Description

Count

LabNum

lab sample number assigned to all samples by NL DNR GS*

5081

Longitude

east geographic coordinate in decimal degrees

5081

Latitude

north geographic coordinate in decimal degrees

5081

Datum

datum upon which the latitude and longitude are based

5081

NTS

1:50,000 NTS sheet within which the sample was taken

5081

SiO2

percent, by method listed in column MajorsMeth

5080

Al2O3

percent, by method listed in column MajorsMeth

5080

Fe2O3

percent, by method listed in column MajorsMeth

4794

Fe2O3_TTR

percent, by titration method

119

FeO

percent, by method listed in column MajorsMeth

921

FeO_TTR

percent, by titration method

2034

MgO

percent, by method listed in column MajorsMeth

5051

CaO

percent, by method listed in column MajorsMeth

5077

Na2O

percent, by method listed in column MajorsMeth

4887

Na2O_AAS

percent, by AAS method where other majors by XRF

173

K2O

percent, by method listed in column MajorsMeth

5078

TiO2

percent, by method listed in column MajorsMeth

5079

MnO

percent, by method listed in column MajorsMeth

5025

P2O5

percent, by method listed in column MajorsMeth

2474

P2O5_COL

percent, by colourimetric method

2292

Cr2O3

percent, by method listed in column MajorsMeth

236

LOI

percent, loss-on-ignition by gravimetric method

4924

H2O_IGA

percent, by infrared-gas analysis

651

CO2_IGA

percent, by infrared-gas analysis

667

S_IGA

percent, by infrared-gas analysis

621

MajorsMeth

analysis method used for major elements listed above (see Table 4)

5080

Labcode

lab used to analyse main major elements elements (see Table 3)

 5081

Year

year of field work, analysis or report

 5081

Source

geologist or company

 5081

Reference

code indicating the reference (see Table 7)

 5081

Geofile

NL DNR GS* Geofile number of the reference (if available; see Table 7)

 3471

FieldNum

field sample number assigned by geologist

 5081

Rock_Class

rock classification based on chemistry (see Tables 5 and 6)

 5081

Age

age of rock unit, ranging from Archean to Devonian

 5070

Comments

notes from original database (Saunders, 1995)

 5081

*Newfoundland and Labrador Department of Natural Resources Geological Survey