Desalination of Hamipterus tianshanensis fossil by electrokinetic method: evaluation for treatment of clay-rich sandstone

doi:10.1186/s40494-023-01059-3

IVPP-IR

	Desalination of Hamipterus tianshanensis fossil by electrokinetic method: evaluation for treatment of clay-rich sandstone
	Li, Ying 1,2,3; Yang, Yimin 2,3; Wang, Xiaolin3,4 ; Luo, Wugan 2,3
	2023-11-03
发表期刊	HERITAGE SCIENCE
ISSN	2050-7445
卷号	11 期号:1 页码:15
通讯作者	Wang, Xiaolin(wangxiaolin@ivpp.ac.cn) ; Luo, Wugan(xiahua@ucas.edu.cn)
摘要	The fossils of Hamipterus tianshanensis (Wang et al. in Curr Biol 24:1323-1330, 2014) and their eggs have important scientific significance because they can provide unique information about the reproduction, development, and evolution of pterosaurs. The fossils and the rock surrounding them have, however, been weathered, which including powdering and flaking, since they were relocated from Xinjiang to Beijing. The high content of soluble salts is a significant factor in fossil deterioration because the dissolution-recrystallization process can generate tremendous pressure and lead to decreased mechanical strength. This study evaluated the electrokinetic desalination performance for the fossils, and two types of poultices employed including paper pulp from Bioline (R) and CKS121 (cellulose: kaolin: sand = 1:2:1, w/w). Mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM), ion chromatography (IC), and other methods were applied to evaluate the desalination effect. The surface salt content reduction by applied direct current (DC) was about 70%, and the inner salt content reduction was about 80%. The experimental results suggest that the electrokinetic method is a promising way to desalinate fossils. Nonetheless, cracks appeared in the surrounding rock crack after electrokinetic desalination, which can be explained by the montmorillonite swelling-induced stresses. Pre-consolidation, especially for electro-chemical method may solve the cracking problem for the clay-rich sandstone desalination.
关键词	Salt weathering Desalination Electrochemistry Fossil matrix Poultice Pore size distribution
DOI	10.1186/s40494-023-01059-3
关键词[WOS]	BUILDING-MATERIALS ; POROUS MATERIALS ; POULTICE ; SALTS
收录类别	SCI
语种	英语
资助项目	The authors are indebted to the Chinese Academy of Cultural Heritage conservator CHEN Yue, DU Jing, HU Fengdan for their assistance in ion chromatography analyses. We express our gratitude to JIANG Shunxing, JIN Xun, ZHOU Hongjiao, XIANG Long, LI Yang, ZHA ; IVPP (the Institute of Vertebrate Paleontology and Paleoanthropology, Beijing, China)
项目资助者	The authors are indebted to the Chinese Academy of Cultural Heritage conservator CHEN Yue, DU Jing, HU Fengdan for their assistance in ion chromatography analyses. We express our gratitude to JIANG Shunxing, JIN Xun, ZHOU Hongjiao, XIANG Long, LI Yang, ZHA ; IVPP (the Institute of Vertebrate Paleontology and Paleoanthropology, Beijing, China)
WOS研究方向	Arts & Humanities - Other Topics ; Chemistry ; Materials Science ; Spectroscopy
WOS类目	Humanities, Multidisciplinary ; Chemistry, Analytical ; Materials Science, Multidisciplinary ; Spectroscopy
WOS记录号	WOS:001096195000001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22992
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Wang, Xiaolin; Luo, Wugan
作者单位	1.Chinese Acad Social Sci, Inst Archaeol, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Dept Archaeol & Anthropol, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Ying,Yang, Yimin,Wang, Xiaolin,et al. Desalination of Hamipterus tianshanensis fossil by electrokinetic method: evaluation for treatment of clay-rich sandstone[J]. HERITAGE SCIENCE,2023,11(1):15.
APA	Li, Ying,Yang, Yimin,Wang, Xiaolin,&Luo, Wugan.(2023).Desalination of Hamipterus tianshanensis fossil by electrokinetic method: evaluation for treatment of clay-rich sandstone.HERITAGE SCIENCE,11(1),15.
MLA	Li, Ying,et al."Desalination of Hamipterus tianshanensis fossil by electrokinetic method: evaluation for treatment of clay-rich sandstone".HERITAGE SCIENCE 11.1(2023):15.