干旱区生态环境知识资源中心(Arid): Hydrogeological research in the Tuyajto Lake at the Flamingo National Reserve (Atacama, Chile)

Arid

DOI	10.21701/bolgeomin.130.4.011
	Hydrogeological research in the Tuyajto Lake at the Flamingo National Reserve (Atacama, Chile)
	Herrera Lameli, Christian; Urrutia Meza, Javier; Jodar Bermudez, Jorge; Lamban Jimenez, Luis Javier; Custodio Gimena, Emilio; Gamboa Palacios, Carolina
通讯作者	Lameli, CH
来源期刊	BOLETIN GEOLOGICO Y MINERO
ISSN	0366-0176
EISSN	2253-6167
出版年	2019
卷号	130 期号:4 页码:789-805
英文摘要	The Tuyajto Lake is a saline lake located in the Andean Altiplano of northern Chile, at the foot of the volcano of the same name. It is fed by springs located on its eastern and northern boundaries. These springs discharge groundwater from a volcanic aquifer. Arid conditions dominate in the area, with average precipitation less than 200 mm/year. The tritium content in some groundwater samples shows the contribution of modern recharge to the total groundwater flow. Recharge occurs by infiltration of snowmelt in the austral winter months and to a lesser extent by short but intense precipitation events during the summer. The vertical gradients of rainfall isotopic content (delta O-18, delta H-2) and precipitation points to the recharge zone of the springs being located at the northern area of the lake, above 4,900 m a.s.l. along the slopes of the Tuyajto volcano, whereas recharge to the springs discharging on the eastern area of the lake originates in the adjacent basins of Pampa Colorada and Pampa Las Tecas at altitudes between 4,400 and 4,700 m a.s.l. The water of these springs may contain measurable tritium. The chemical composition of groundwater is the result of meteoric water evaporation processes, high temperature water-rock interaction and dissolution of buried old salt flat deposits. The groundwater flow is shallow, due to the presence of a regional low permeability ignimbrite formation that precludes the formation of deep convective groundwater flow cells due to the high density of brines. At a local scale, the Tuyajto lake behaves as a flow-through system with respect to the regional groundwater flow. The persistence of the springs is essential for the existence of the brine sheet and maintaining the ecological conditions for the waterfowl.
类型	Article
语种	西班牙语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000518847700011
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334119
作者单位	[Herrera Lameli, Christian; Urrutia Meza, Javier; Gamboa Palacios, Carolina] Univ Catolica Norte, Dept Ciencias Geol, Antofagasta, Chile; [Jodar Bermudez, Jorge; Lamban Jimenez, Luis Javier] Inst Geol & Minero Espana, Unidad Zaragoza, C Manuel Lasala 44, Zaragoza 50006, Spain; [Custodio Gimena, Emilio] Univ Politecn Cataluna, Real Acad Ciencias, Grp Hidrol Subterranea, Dept Ingn Civil & Ambiental, C Jordi Girona,1-3 UPC Campus Nord,Edificio D2, Barcelona 08034, Spain
推荐引用方式 GB/T 7714	Herrera Lameli, Christian,Urrutia Meza, Javier,Jodar Bermudez, Jorge,et al. Hydrogeological research in the Tuyajto Lake at the Flamingo National Reserve (Atacama, Chile)[J],2019,130(4):789-805.
APA	Herrera Lameli, Christian,Urrutia Meza, Javier,Jodar Bermudez, Jorge,Lamban Jimenez, Luis Javier,Custodio Gimena, Emilio,&Gamboa Palacios, Carolina.(2019).Hydrogeological research in the Tuyajto Lake at the Flamingo National Reserve (Atacama, Chile).BOLETIN GEOLOGICO Y MINERO,130(4),789-805.
MLA	Herrera Lameli, Christian,et al."Hydrogeological research in the Tuyajto Lake at the Flamingo National Reserve (Atacama, Chile)".BOLETIN GEOLOGICO Y MINERO 130.4(2019):789-805.