干旱区生态环境知识资源中心(Arid): Analytical methodology to evaluate the Terrestrial Weathering of Libyan Desert Glasses and Darwin Glasses after their formation

Arid

DOI	10.1007/s00216-019-02191-5
	Analytical methodology to evaluate the Terrestrial Weathering of Libyan Desert Glasses and Darwin Glasses after their formation
	Gomez-Nubla, Leticia 1; Aramendia, Julene 1; Fdez-Ortiz de Vallejuelo, Silvia 1,2; Castro, Kepa 1; Madariaga, Juan Manuel 1
通讯作者	Gomez-Nubla, Leticia
来源期刊	ANALYTICAL AND BIOANALYTICAL CHEMISTRY
ISSN	1618-2642
EISSN	1618-2650
出版年	2019
卷号	411 期号:29 页码:7869-7877
英文摘要	Libyan Desert Glasses (LDGs) and Darwin Glasses (DGs) are impact glasses produced by the impact of an extraterrestrial body into the Earth million years ago. LDGs were formed in the Libyan Desert (Africa) and DGs in Tasmania (Australia). From their formation, they have suffered terrestrial weathering processes due to their interaction with the environment. This is the first work that has evaluated their weathering processes according to their composition, the surrounding environment, and the climate. An innovative methodology based on the leaching of organic and inorganic ions and chemical modeling simulations was employed. Inductively coupled plasma-mass spectrometry (ICP-MS), ionic chromatography (IC), and solid-phase microextraction (SPME), and head space (HS) injections coupled to gas chromatography and mass spectrometry (GC-MS) detection were used. As a result, soluble organic compounds such as oxalates, n-hexadecanoic acid, and 4-chlorobenzalacetone were detected. The inorganic ions suffered a similar process, going inside the body of glasses and precipitating the corresponding salts when water evaporated. As these compounds are polar, they were probably transported by infiltration waters from outside the glasses, remaining inside in the pores, cavities, or cracks of the glasses during thousands of years. In the case of the DGs, it could be observed that under the oxidizing conditions of the terrestrial atmosphere, sulfides present in some samples transformed into sulfates. Finally, this methodology could be applied in other extraterrestrial materials discovered in deserts, ice fields, or in locations with great living activity like those of Tasmania.
英文关键词	Libyan Desert Glass Darwin Glass Leaching Weathering Soluble organic compounds
类型	Article
语种	英语
国家	Spain
收录类别	SCI-E
WOS记录号	WOS:000495396300002
WOS关键词	IMPACT GLASS
WOS类目	Biochemical Research Methods ; Chemistry, Analytical
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
EI主题词	2019-11-07
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310781
作者单位	1.Univ Basque Country UPV EHU, Fac Sci & Technol, Dept Analyt Chem, POB 644, Bilbao 48080, Spain; 2.Univ Valladolid, Dept Condensed Matter Phys Cristallog & Mineral, Associated Unit UVA CSIS, Astrobiol Ctr, Valladolid, Spain
推荐引用方式 GB/T 7714	Gomez-Nubla, Leticia,Aramendia, Julene,Fdez-Ortiz de Vallejuelo, Silvia,et al. Analytical methodology to evaluate the Terrestrial Weathering of Libyan Desert Glasses and Darwin Glasses after their formation[J],2019,411(29):7869-7877.
APA	Gomez-Nubla, Leticia,Aramendia, Julene,Fdez-Ortiz de Vallejuelo, Silvia,Castro, Kepa,&Madariaga, Juan Manuel.(2019).Analytical methodology to evaluate the Terrestrial Weathering of Libyan Desert Glasses and Darwin Glasses after their formation.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,411(29),7869-7877.
MLA	Gomez-Nubla, Leticia,et al."Analytical methodology to evaluate the Terrestrial Weathering of Libyan Desert Glasses and Darwin Glasses after their formation".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 411.29(2019):7869-7877.