Table 2 Summary of Ni and elemental distributions in each map

Figure S4a—s10t2 region 1 map

x

x

x

x

x

Cr

Figure S4b—s10t2 region 1 map

x

x

x

Figure S5—s10t2 region 4 map

x

x

x

x

Cr/Zn

Figure S6a—s10t2 region 5 map

x

x

x

x

x

x

Cr

Figure S6b—s10t2 region 5 mini map J

x

x

Cr, Ti

Figure S6c—s10t2 region 5 mini map M&C

x

x

x

x

x

Cr/Zn, Ti

Figure S6d—s10t2 region 5 mini map Q

x

x

x

Cr/Zn, Ti

Figure S7—s10t2 clay particles map

x

x

Figure S8a—s10t2 silt particles map

–

–

–

–

–

–

–

–

Figure S8b—s10t2 silt particles map

x

x

x

x

x

Cr

Figure S9a—s10t2 medium sand map

–

–

–

–

–

–

–

–

Figure S9b—s10t2 medium sand map

x

x

x

x

Cr/Zn

Figure S10—s11unt map A1

x

x

Ti

Figure S11—s11unt map A2

x

x

x

x

Cr/Zn, Ti

Figure S12a—s11unt map B1

x

x

x

x

Figure S12b—s11unt map B1

–

–

–

–

–

–

–

–

Figure S13—s11unt map B2

x

x

x

Cr, Ti

Figure S14—s11unt map C

x

x

x

x

Ti, Ca

Figure S15—s11unt map D1

x

x

x

Zn

Figure S16a—s11unt map D2

x

x

x

x

x

x

Figure S16b—s11unt map D2

–

–

–

–

–

–

–

–

Figure S17—s11unt map E

x

x

x

x

Cr/Zn, Ti

Figure S18—s11unt map F

x

x

x

Cr, Ti, Ca

Figure S19a—s11unt silt map

–

–

–

–

–

–

–

–

Figure S19b—s11unt silt map

x

x

x

x

x

Figure S19c—s11unt silt high‐res

x

x

Cr/Zn, Ti, Ca

Figure S20—s20unt region 1 map

x

x

x

x

Figure S21—s20unt region 3 map

x

x

x

x

x

x

Cr/Zn/Fe

Figure S22—s20unt region 4 map

x

x

x

x

x

x

Cr/Zn

Figure S23a—s20unt region 6 map

x

x

x

x

x

x

x

Cr/Zn, Ti

Figure S23b—s20unt region 6 spot A map

–

–

–

–

–

–

–

–

Figure S23c—s20unt region 6 spot B map

–

–

–

–

–

–

–

–

# of occurrences

19

7

14

17

12

21

12

% of occurring

76

28

56

68

48

84

48