Number,Letter,Variable,Explanation

1,,Sample,Sample name/label

2,A,Latitude,Coordinate information for the sample

3,B,Longitude,Coordinate information for the sample

4,C,Location-Type,"Information used for finding coordinates for the samples. The three possible values are: “GPS”, “Figure-Point”, and “Figure-Polygon”. Samples with a location in a coordinate system were transformed to decimal degrees (WGS84) and classified as “GPS”. Samples individually identified in a georeferenced geologic map were approximately located after georeferencing the map in Google Earth or ArcGis (“Figure-Point”). Samples identified with a polygon in a georeferenced map (through age, body name or unidentified sample locations), but without more detailed information were approximately located in the middle of the corresponding polygon after georeferencing the map in Google Earth or ArcGis (“Figure-Polygon”)."

5,D,Location/Body-Name,Description of the location or name of the igneous body if available

6,E,Age,Age value or range in million of years (Ma)

7,F,Age-number,Numeric value for the age of the sample

8,G,Age-Error,Numeric value for the error associated with the sample

9,H,Reference,Original Reference for geochemical isotopic data

10,I,Compilation-Reference,Reference of the compilation that includes the original data

11,J,Reference-Age,Numeric value for the age of the sample

12,K,Comment,Additional information about location or other information about the sample.

13,L,176Yb/177Hf,"Isotope ratio, Ytterbium-176/Hafnium-177"

14,M,2s_Yb/Hf,2-sigma error for the Ytterbium/Hafnium isotopic ratio

15,N,176Lu/177Hf,"Isotope ratio, Lutetium-176/Hafnium-177"

16,O,2s_Lu/Hf,2-sigma error for the Lutetium/Hafnium isotopic ratio

17,P,176Hf/177Hf,"Isotope ratio, Hafnium-176/Hafnium-177"

18,Q,2s_Hf/Hf,2-sigma error for the Hafnium/Hafnium isotopic ratio

19,R,EHf(0),Initial epsilon Hafnium values

20,S,EHf(t),Epsilon Hafnium values

21,T,1s_EHf,1-sigma error for the Epsilon Hafnium values

22,U,2s_EHf,2-sigma error for the Epsilon Hafnium values

23,V,176Yb/177Hfi,"Initial Isotope ratio, Ytterbium-176/Hafnium-177"

24,W,f(Lu/Hf),Fractionation factor. [(Lu-177/177-Hf)sample/(Lu-177/177-Hf)CHUR]-1

25,X,Sm,Samarium in ppm

26,Y,Nd,Neodymium in ppm

27,Z,147Sm/144Nd,"Isotope ratio, Samarium-147/Neodymium-144"

28,AA,143Nd/144Nd,"Isotope ratio, Neodymium-143/Neodymium-144"

29,AB,2s_Nd,2-sigma error for the Neodymium/Neodymium isotopic ratio

30,AD,ENd(t),Epsilon Neodymium values

31,AE,Rb,Rubidium in ppm

32,AF,Sr,Strontium in ppm

33,AG,87Rb/86Sr,"Isotope ratio, Rubidium-87/Strontium-86"

34,AI,87Sr/86Sr,"Isotope ratio, Strontium-87/Strontium-86"

35,AJ,87Sr/86Sri,"Initial Isotope ratio, Strontium-87/Strontium-86"