干旱区生态环境知识资源中心(Arid): Microbial mat contribution to the formation of an evaporitic environment in a temperate-latitude ecosystem

Arid

DOI	10.1016/j.jhydrol.2019.05.027
	Microbial mat contribution to the formation of an evaporitic environment in a temperate-latitude ecosystem
	Liliana Perillo, Vanesa 1,2; Maisano, Lucia 1,3; Maria Martinez, Ana 4,5; Emma Quijada, Isabel 6; Graciela Cuadrado, Diana 1,3
通讯作者	Liliana Perillo, Vanesa
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	575 页码:105-114
英文摘要	An evaporitic environment is characterized by having high salinity, climatic, and hydrological factors that promote a negative water balance; however, biological factors may also influence their development. Modern coastal flat Paso Seco (40 degrees 33'S; 62 degrees 14'W) is located in a semi-arid region with low precipitation and dry winds coming mainly from the NW. The site is an old tidal channel, which nowadays behaves like a shallow coastal saline-like basin, separated from the sea by a sand barrier, which the sea periodically overcomes, flooding the flat with eventual water evaporation. Microbial mats of up to 1 cm thick colonize the sandy sediments of this evaporitic environment. Water samples were taken during five field trips (2017-2018) from interstitial water of the flat, a tidal creek that crosses the flat, and two shallow tidal depressions (TDs) within the flat with different degrees of evaporation. In comparison to the sea, the maximum salinity values measured in Austral spring (September 2017) in the tidal creek were doubled, tripled in interstitial water, and 5.9 to 8 times higher in TDs. Ionic concentration denotes that evaporite chemical divides are followed as water evaporates, corresponding to the presence of CaCO3, gypsum and halite found in TDs. On-site permeability of microbial mat-covered surfaces presented semi-pervious properties. Microbial mat presence is condition for CaCO3, gypsum, and halite precipitation as they allow for water retention and its consequent evaporation due to the impermeability they confer to the sedimentary surface, Thus, microbial mats are a biological factor affecting the development of an evaporitic environment.
英文关键词	Saline basin Evaporite Calcium carbonate Water retention Salinity
类型	Article
语种	英语
国家	Argentina ; Spain
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000488143000009
WOS关键词	EVOLUTION
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217170
作者单位	1.UNS, CONICET, Inst Argentino Oceanog, IADO, Camino La Carrindanga Km 7 El,B8000FWB, Bahia Blanca, Buenos Aires, Argentina; 2.Univ Nacl Sur, Dept Biol Bioquim & Farm, San Juan 670 Piso 1,B8000ICN, Bahia Blanca, Buenos Aires, Argentina; 3.Univ Nacl Sur, Dept Geol, Alem 1253 Piso 2,Cuerpo B,B8000ICN, Bahia Blanca, Buenos Aires, Argentina; 4.Univ Nacl Sur, Dept Quim, Ave Alem 1253 Planta Baja,B8000CPB, Bahia Blanca, Buenos Aires, Argentina; 5.UNS, CONICET, INQUISUR, Inst Quim Sur, Ave Alem 1253 Planta Baja,B8000CPB, Bahia Blanca, Buenos Aires, Argentina; 6.Univ Oviedo, Dept Geol, C Jesus Arias Velasco S-N, E-33005 Oviedo, Spain
推荐引用方式 GB/T 7714	Liliana Perillo, Vanesa,Maisano, Lucia,Maria Martinez, Ana,et al. Microbial mat contribution to the formation of an evaporitic environment in a temperate-latitude ecosystem[J],2019,575:105-114.
APA	Liliana Perillo, Vanesa,Maisano, Lucia,Maria Martinez, Ana,Emma Quijada, Isabel,&Graciela Cuadrado, Diana.(2019).Microbial mat contribution to the formation of an evaporitic environment in a temperate-latitude ecosystem.JOURNAL OF HYDROLOGY,575,105-114.
MLA	Liliana Perillo, Vanesa,et al."Microbial mat contribution to the formation of an evaporitic environment in a temperate-latitude ecosystem".JOURNAL OF HYDROLOGY 575(2019):105-114.