Table 2. Key to data presentation.

for a relative 95% confidence limit

() of

the best value () is presented in

this type style

 

example

<3%

bold

 

7.38

310%

normal

 

7.4

1030%

italic

 

7.

>30%

(italic)

 

(7.)

other information

     

standard value

red

 

38.6

(all other values based on this value)

     

estimated value (rare-earth elements)

[ ]

 

[7.4]

heterogeneity suspected; see text
s is significantly greater than and



H
h

 



7.4
H
7.4h

mass-weighted mean;
highly heterogeneous; see text

< >H

 

<7.>H

one highly anomalous value excluded
from mean; see text

(H)

 

7.4(H)

not analyzed, i.e., <3 values

n.a.

 

n.a.

below detection limit (3s)

<

 

<7.

LOD

loss on drying at 110 C overnight

   

n

number of analyses

   

mt

total mass of
analyzed material