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| 熊家塚含鹽情況調查與分析=A Study on the Soluble Salt Contents and Occurrence State in the Soil of the Earthen Site at Xiongjiazong | ||
| 作者 | 錢玲 (著)=Qian, Ling (au.) |
|---|---|
| 出處題名 | 敦煌研究=Dunhuang Research |
| 卷期 | n.5 (總號=n.165) |
| 出版日期 | 2017 |
| 頁次 | 126 - 131 |
| 出版者 | 敦煌研究編輯部 |
| 出版者網址 | http://www.dha.ac.cn/ |
| 出版地 | 蘭州, 中國 [Lanzhou, China] |
| 資料類型 | 期刊論文=Journal Article |
| 使用語言 | 中文=Chinese |
| 附註項 | 作者單位：中國科學院蘭州化學物理研究所助理研究員 |
| 關鍵詞 | 土遺址=earthen sites; 鹽害=salt damage; 可溶鹽=salt content; 賦存狀態; 熊家冢=Xiongjiazong |
| 摘要 | 可溶鹽在一定溫濕度條件下在土遺址基體反復溶解—結晶是造成土遺址本體病害的主要原因。本文考察了荊楚故地大型古墓熊家塚土遺址本體的含鹽情況,對土遺址取樣並進行XRF、XRD、XPS、TEM及離子色譜等方法表徵並分析其鹽分種類及含量,結果表明,熊家塚實驗區域取樣基底土中主要含有的成鹽陽離子有Na+、K+、Mg2+、Ca2+等,陰離子有SO42-、NO3-、Cl-等,其中Cl-含量較少。遺址基體中鹽分主要以鈣芒硝及水合氯化鈣形式存在著。熊家塚土遺址取樣與所含鹽分分析為其遺址保護提供了必要的參考與基礎。 Repeated dissolution and crystallization of soluble salts at certain environmental temperatures and humidity is the main factor resulting in salt damage of earthen sites. The various types and concentrations of salts in the soil of the Xiongjiazhong ancient tomb were investigated with XRF, XRD, XPS, TEM, and IC techniques. The results show that there are Na+, K+, Mg2+, Ca2+ cations and SO42-, NO3-, Cl-anions in the tested samples,and that the Na+ and Ca2+ contents are higher than those of K+and Mg2+. The concentration of Na+cations varies between 13 and 48 ppm, while Ca2+ concentration was between 16 and 36 ppm. The main soluble anions were SO42-, NO3- and Cl-. The concentrations of SO42- and Cl-are higher than that of NO3-, in which the concentration of Cl-was between 16 and 39 ppm, while the concentration of SO42- was between 8 and 30 ppm. This chemical analysis has yielded several conclusive results: a clear tendency of concentration decrease with the increase of sampling depth has been observed; NO3-is not the main anion forming soluble salts in the tested samples;the observable enrichment of Ca2+, Na+, SO42- and Cl-ions in the ruins surface has been confirmed; and the main soluble salts exist in the ancient earthen grave sites as Ca Na2（SO4）2 and CaCl2·2 H2O. These research results regarding salt solubility will provide necessary reference data for future conservation of the Xiongjiazhong earthen sites. |
| 目次 | 1 引言 133 2 實驗部分 134 3 結果與討論 134 3.1 取樣位置 134 3.2 XRF分析 134 3.3 IC結果 135 3.4 XRD表徵 136 3.5 XPS表徵 137 3.6 TEM表徵 138 4 結論 139 |
| ISSN | 10004106 (P) |
| 點閱次數 | 41 |
| 建檔日期 | 2020.10.19 |
| 更新日期 | 2020.10.27 |
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