DOI: 10.1007/s10533-015-0067-6
Scopus记录号: 2-s2.0-84925482102
论文题名: Rare earth elements and Sr–Nd isotopes in mosses from Romagna (Italy) and their environmental significance
作者: Castorina F. ; Masi U.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 123, 期: 2018-01-02 起始页码: 251
结束页码: 263
语种: 英语
英文关键词: Italy
; Mosses
; Pollution
; REY
; Sources
; Sr–Nd isotopes
英文摘要: Sr and Nd isotopes were applied to the study of a large number of moss samples from Romagna, northern Italy, to investigate whether these isotopes can provide useful information on environmental quality. Sr, Ca, and rare earth elements plus Y, i.e. REY, were also determined in selected samples. The REY contents (0.014–2.65 mg/kg) likely correlate with the different age of the samples. The REY patterns normalized to Post-Archean Australian Shale show a middle REY enrichment suggestive of phosphate assimilation by the mosses, whereas the Gd and Y positive anomalies along with the Ce negative anomaly envisage carbonate assimilation and, lastly, the Nd negative anomaly may refer to either Nd retention onto soil clay or Nd substitution for Ca under Ca deficiency. The δ87Sr values of the samples (from −1.4 to 0.2) collected from tree canopy-protected areas support the hypothesis of Sr provenance from marine carbonates. In contrast, the uppermost of the samples from open spaces display δ87Sr values (0.1–3.6) suggestive of a significant Sr contribution from crustal silicates. The εNd range (from −10.9 to −4.1) supports the hypothesis of a Nd crustal source for all the mosses. As a whole, there is no evidence of contribution of Sr and Nd from pollution sources. Lastly, this paper yields the largest data base ever carried out about the Sr–Nd isotopic composition of a moss species. © 2015, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83547
Appears in Collections: 气候减缓与适应 气候变化事实与影响
There are no files associated with this item.
作者单位: Dipartimento di Scienze della Terra, Università di Roma “La Sapienza”, Rome, Italy; IGAG-CNR, c/o Dipartimento di Scienze della Terra, Università di Roma “La Sapienza”, Rome, Italy
Recommended Citation:
Castorina F.,Masi U.. Rare earth elements and Sr–Nd isotopes in mosses from Romagna (Italy) and their environmental significance[J]. Biogeochemistry,2015-01-01,123(2018-01-02)