Results 61 to 70 of about 569 (166)

Tracing Groundwater‐Surface Water Interactions in a Volcanic Maar Lake Using Stable Isotopes and 222Rn

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 129, Issue 12, December 2024.
Abstract Isotope hydrological studies to understand groundwater‐surface water interactions in tropical, high‐elevation catchments are limited. These interactions are important in controlling lake water residence time, aqueous biogeochemistry, and water availability for downstream communities and ecosystems. To better comprehend the complexity of spatio‐
Germain Esquivel‐Hernández   +8 more
wiley   +1 more source

Microbialites on the northern shelf of Lake Van, eastern Türkiye#: Morphology, texture, stable isotope geochemistry and age

open access: yesSedimentology, Volume 71, Issue 3, Page 850-870, April 2024.
ABSTRACT Lake Van, the world's largest alkaline lake, hosts some of the largest microbialite towers worldwide, which are considered as modern analogues of ancient stromatolites. This study investigates the links between microbialite evolution, geology, climate and hydrology, and the role of biotic and abiotic processes in microbialite growth and ...
M. Namık Çağatay   +3 more
wiley   +1 more source

Preliminary investigations on picoplankton-related precipitation of alkaline-earth metal carbonates in meso-oligotrophic lake Geneva (Switzerland)

open access: yesJournal of Limnology, 2013
In the course of a routine water-quality survey in meso-oligotrophic lake Geneva (Switzerland), suspended matter was collected by filtration on 0.2 μm membranes in July and August 2012 at the depth of maximal chlorophyll a (Chl a) concentration (2 mg m–3)
Jean-Michel Jaquet   +2 more
doaj   +1 more source

Lead-210 (Pb-210) dating of a sediment core from Lake Alchichica (Puebla, Mexico)

open access: yes
Lead-210 (Pb-210) dating of sediment core LAc22-1 retrieved from Lake Alchichica in April ...
Rantala, Marttiina V   +11 more
core   +1 more source

Ciliate food vacuole content and bacterial community composition in the warm-monomictic crater Lake Alchichica, México [PDF]

open access: yesFEMS Microbiology Ecology, 2011
To evaluate trophic relationships between ciliates and bacterioplankton during the stratification period in a lake, samples from three different layers [the upper part of the metalimnion (UM), the base of the metalimnion (BM) and the hypolimnion] were studied. The autotrophic picoplankton numbers, phylogenetic composition of heterotrophic picoplankton (
Fernando, Bautista-Reyes   +1 more
openaire   +2 more sources

Planktonic bloom-forming Nodularia in the saline Lake Alchichica, Mexico [PDF]

open access: yes, 2009
Lake Alchichica displays a characteristic cyanobacterial bloom associated with the onset of the stratification period. It mostly consists of the nitrogen-fixing cyanobacterium Nodularia spumigena.
Peralata, Laura   +4 more
core   +1 more source

Ensamble de crustáceos bentónicos en un lago salino tropical Benthic crustaceans assemblage in a tropical, saline lake

open access: yesRevista Mexicana de Biodiversidad, 2010
El presente trabajo reconoce la composición, estructura y distribución espacial del ensamble de crustáceos bentónicos de Alchichica, un lago salino tropical ubicado en el extremo oriental del altiplano mexicano. El lago presenta una riqueza taxonómica de
Ma. del Carmen Hernández   +2 more
doaj  

Pollen determination from sediment core of Lake Alchichica in Mexico

open access: yes
The pollen samples were collected from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. A total of 39 wet sediment
Rantala, Marttiina V   +9 more
core   +1 more source

Gray value determination from sediment core of Lake Alchichica in Mexico

open access: yes
The grey values were measured from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube.
Rantala, Marttiina V   +9 more
core   +1 more source

Downcore sediment biogeochemical and physical data from Lake Alchichica (Puebla, Mexico)

open access: yes
Multiproxy biogeochemical and physical data of sediment core LAc22-1 retrieved from Lake Alchichica in April 2022. Measurements (elemental and isotope biogeochemistry, visible range spectroscopy, loss on ignition) were performed on discrete sediment ...
Rantala, Marttiina V   +11 more
core   +1 more source

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