Journal of Chemistry / 2016 / Article / Tab 2 / Research Article
REE Geochemistry of Euphrates River, Turkey Table 2 North American Shale (NAS), upper continental crust (UCC), and chondrite (Ch.) from Yang et al. [
8 ], Condie [
22 ], Taylor et al. [
23 ], and Sholkovitz [
50 ,
51 ] and normalized REE summary statistical values (ppm) in Euphrates River sediments;
Obaje et al. [
18 ].
LREE Mean St. dev. HREE Mean St. dev. La/NAS 0.28 0.08 — Tb/NAS 0.39 0.11 — La/UCC 0.29 0.09 — Tb/UCC 0.52 0.15 — La/Ch. 26.77 8.08 39.76 Tb/Ch. 6.51 1.85 — Ce/NAS 0.27 0.09 — Dy/NAS 0.52 0.13 — Ce/UCC 0.28 0.09 — Dy/UCC 0.62 0.15 — Ce/Ch. 20.12 6.34 17.96 Dy/Ch. 7.23 1.78 — Pr/NAS 0.29 0.09 — Ho/NAS 0.42 0.10 — Pr/UCC 0.31 0.10 — Ho/UCC 0.53 0.13 — Pr/Ch. 17.10 5.46 — Ho/Ch. 5.74 1.41 — Nd/NAS 0.28 0.06 — Er/NAS 0.42 0.10 — Nd/UCC 0.30 0.06 — Er/UCC 0.52 0.13 — Nd/Ch. 14.26 2.97 18.96 Er/Ch. 5.73 1.39 — Sm/NAS 0.38 0.11 — Tm/NAS 0.35 0.09 — Sm/UCC 0.48 0.14 — Tm/UCC 0.51 0.14 — Sm/Ch. 10.20 3.00 — Tm/Ch. 5.22 1.41 — Eu/NAS 0.48 0.12 — Yb/NAS 0.36 0.09 — Eu/UCC 0.65 0.17 — Yb/UCC 0.51 0.12 — Eu/Ch. 7.70 1.98 404.62 Yb/Ch. 6.18 1.47 25.52 Gd/NAS 0.45 0.12 — Lu/NAS 0.33 0.09 — Gd/UCC 0.58 0.16 — Lu/UCC 0.47 0.12 — Gd/Ch. 7.35 1.98 58.50 Lu/Ch. 4.68 1.23 —
