Bilans hydrologique et isotopiques (18O et 2H) du lac Massoko, Tanzanie. Quantification des échanges lac–eaux souterraines

Autor:	Laurent Bergonzini, Ouassila Merdaci, Anne Winckel, E. Gibert
Rok vydání:	2001
Předmět:	Hydrology geography geography.geographical_feature_category Rift Flux Ocean Engineering Inflow Maar Volcano East African Rift Environmental science Outflow Ecology Evolution Behavior and Systematics Groundwater
Zdroj:	Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science. 333:617-623
ISSN:	1251-8050
DOI:	10.1016/s1251-8050(01)01672-x
Popis:	This paper deals with the study of Lake Massoko (9°20′00S–33°45′20E, Tanzania), a maar lake of the East-African Rift. Although some water flux of the hydrologic balance of this lake are easily quantified, only the net flux between the Lake and groundwater can be appreciated. Overpassing this limit requires the establishment of stable isotopic (18O and 2H) budgets. This approach is discussed with a special attention on the atmospheric vapour estimation. Results allow to estimate the underground outflow at 60 % and underground inflow at 25 %, with regard of the total water input. This confirms the importance of the groundwater circulation in volcanic lakes of the East African Rift.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e991f8d657ba1ca788d49a179faa608 https://doi.org/10.1016/s1251-8050(01)01672-x Zobrazit plný text záznamu