## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Samples**} & **n*** & \multirow{2}{*}{**Quartz**} & **K-** & \multirow{2}{*}{**Plagioclase**} & \multirow{2}{*}{**Dolomite**} & **Mica** & **Clay** & \multirow{2}{*}{**Q/F** **\(\ast\)**} & **Sand** & **n** \\  & & & & & & & & **Minerals** & & **b-64 \(\mu\)m** \\ \hline \multirow{8}{*}{ARA09C-St03} & Unit 1 & 5 & 22.4 & 4.6 & 12.1 & 4.2 & 12.6 & 41.6 & 1.3 & 1.3 & 76 \\  & Unit 2 & 5 & 38.2 & 4.7 & 7.3 & 7.3 & 10.2 & 30.1 & 3.2 & 13.2 & 956 \\  & Unit 3 & 4 & 22.0 & 3.8 & 14.3 & 0.2 & 11.8 & 45.0 & 1.2 & 0.2 & 10 \\ \cline{1-1}  & Unit 4 & 9 & 22.2 & 4.3 & 14.2 & 3.3 & 11.5 & 41.1 & 1.2 & 4.3 & 287 \\ \cline{1-1}  & Unit 5 & 10 & 22.9 & 4.4 & 14.8 & 0.1 & 11.3 & 44.3 & 1.2 & 0.1 & 0 \\ \cline{1-1}  & Unit 6 & 7 & 21.9 & 4.3 & 15.3 & 0.9 & 11.5 & 43.8 & 1.1 & 0.3 & 10 \\ \cline{1-1}  & Unit 7 & 3 & 20.7 & 4.4 & 11.3 & 11.0 & 12.1 & 38.3 & 1.3 & 6.1 & 362 \\ \cline{1-1}  & Unit 8 & 4 & 21.5 & 4.2 & 13.8 & 0.4 & 12.5 & 45.5 & 1.2 & 0.3 & 9 \\ \hline \multicolumn{11}{c}{Laptev Sea} & 1 & 23.6 & 16.3 & 21.1 & 0.1 & 7.3 & 28.8 & 0.6 & - & - \\ \multicolumn{11}{c}{East Siberian Sea} & 5 & 27.1 & 9.2 & 17.3 & 0.1 & 14.9 & 31.1 & 1.0 & - & - \\ \multicolumn{11}{c}{Chuckh Sea} & 4 & 28.5 & 5.5 & 15.1 & 1.1 & 17.3 & 31.1 & 1.4 & - & - \\ \multicolumn{11}{c}{Canada Archipelago} & 7 & 21.8 & 3.7 & 6.4 & 16.9 & 14.2 & 31.4 & 2.2 & - & - \\ \multicolumn{11}{c}{Beaufort Sea} & 3 & 39.3 & 3.7 & 5.1 & 8.0 & 10.2 & 25.4 & 4.5 & - & - \\ \multicolumn{11}{c}{Bering Strait} & 1 & 31.4 & 14.0 & 18.3 & 0.2 & 14.4 & 19.2 & 1.0 & - & - \\ \hline \hline \end{tabular}  
* n: number of samples. ** Q/F: quartz/feldspar is the sum of K-feldspar and plagioclase. *** IRD: ice-rafted debris.  
\end{table} 
Table 1: Average bulk mineral compositions (%), sand content (%) and number of IRD of core ARA09C-St03 and potential provenances from [PERSON] et al. [18]. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Samples** & **n** * & **Illite** & **Chlorite** & **Kaolinite** & **Smectite** & **K/C** ** & **Reference** \\ \hline \multirow{8}{*}{ARA09C-St03} & Unit 1 & 6 & 64.1 & 19.0 & 11.8 & 5.1 & 0.6 & \\  & Unit 2 & 5 & 54.9 & 17.9 & 25.1 & 2.1 & 1.4 & \\  & Unit 3 & 4 & 64.6 & 20.0 & 8.8 & 6.6 & 0.4 & \\  & Unit 4 & 9 & 62.8 & 18.9 & 10.6 & 7.8 & 0.6 & \\  & Unit 5 & 10 & 65.8 & 18.5 & 8.0 & 7.6 & 0.4 & \\  & Unit 6 & 7 & 65.6 & 17.4 & 9.5 & 7.5 & 0.5 & \\  & Unit 7 & 3 & 63.4 & 16.5 & 10.4 & 9.7 & 0.6 & \\  & Unit 8 & 4 & 65.0 & 18.6 & 8.9 & 7.5 & 0.5 & \\ \hline \multirow{2}{*}{Laptev Sea—west} & 48/64 & 38.6 & 22.5 & 14.5 & 24.4 & 0.6 & \\  & Laptev Sea—east & 35/96 & 41.9 & 22.2 & 11.7 & 24.3 & 0.5 & \\ \hline \multirow{2}{*}{East Siberian Sea} & 20/84 & 66.3 & 19.9 & 8.3 & 5.9 & 0.4 & [16,24] \\ \cline{1-1}  & 17/8 & 58.1 & 23.7 & 9.4 & 8.7 & 0.4 & [16,24] \\ \hline \multirow{2}{*}{Canada Archipelago} & 13/4 & 57.8 & 10.0 & 14.4 & 17.7 & 1.4 & [16,17] \\ \hline \multirow{2}{*}{Beaufort Sea} & 19/40 & 63.1 & 16.7 & 12.0 & 8.1 & 0.7 & [13,16] \\ \hline \hline \end{tabular}  
* n: number of samples. ** K/C: kaolinite/chlorite.  
\end{table} 
Table 2: Average relative compositions of clay minerals in core ARA09C-St03 and potential provenances.