2018
DOI: 10.1590/0001-3765201820170349
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Abstract: High-resolution satellite images, digital elevation models, bathymetric and sedimentological surveys coupled with statistical analysis were used to understand the physical environment and discuss their influence on water quality of the five upland lakes of Serra Sul dos Carajás, southeast Amazonia. The lakes have mid-altitude ranges (elevation), very small (catchment) and shallow to very shallow (central basins). Based on the length, area and volume, Violão and TI (Três Irmãs)-3 lakes may present large vertica… Show more

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Cited by 27 publications
(18 citation statements)
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“…Bathymetric data and seismic profiling were conducted in the active lakes using a 200 kHz Raytheon DE719E and StrataBox™ SyQuest Echo Sounders, respectively. The bathymetric maps and digital terrain model were designed for planimetric map with 1 m isobaths of interval and 3D view to allow a precise visualization of the lake morphology according to Silva et al (2018). Based on these maps, 145 surficial (0-10 cm) sediment samples were collected using a Van Veen Grab sampler.…”
Section: Methodsmentioning
confidence: 99%
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“…Bathymetric data and seismic profiling were conducted in the active lakes using a 200 kHz Raytheon DE719E and StrataBox™ SyQuest Echo Sounders, respectively. The bathymetric maps and digital terrain model were designed for planimetric map with 1 m isobaths of interval and 3D view to allow a precise visualization of the lake morphology according to Silva et al (2018). Based on these maps, 145 surficial (0-10 cm) sediment samples were collected using a Van Veen Grab sampler.…”
Section: Methodsmentioning
confidence: 99%
“…This is particularly interesting for Amazonian ULs, which are located in the Carajás mineral province, as these lakes are best fit for paleoclimate studies (Guimarães et al, 2016(Guimarães et al, , 2017. The active ULs of the Carajás region have mid-altitude ranges (695-725 m), very small surface areas (< 0.5 km 2 ), shallow to very shallow depths (< 10 m: mean depth), and catchments with relatively high declivities (> 20º and maximum of ~ 60º) (Silva et al, 2018). Violão and Amendoim lakes are separated by an intermediate basin that prevents any surface connection of water among them (Fig.…”
Section: Modern Sedimentation Patterns: Basin Morphology and Source-tmentioning
confidence: 99%
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