Neotectonics, flooding patterns and landscape evolution in southern Amazonia
نویسندگان
چکیده
منابع مشابه
Miocene flooding events of western Amazonia
There is a considerable controversy about whether western Amazonia was ever covered by marine waters during the Miocene [23 to 5 Ma (million years ago)]. We investigated the possible occurrence of Miocene marine incursions in the Llanos and Amazonas/Solimões basins, using sedimentological and palynological data from two sediment cores taken in eastern Colombia and northwestern Brazil together w...
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This project aims to set-up and test a methodology for landscape mapping of Amazonia to assess the biological diversity by applying the knowledge and know-how of the local communities and involving them in Remote Sensing and Geographic Information System technology. The project will provide ground truth for the remote sensing of Amazonia and contribute to the baseline data sets of pristine biot...
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Fire histories contribute important information to contemporary fire planning, however, our knowledge is not comprehensive geographically. We evaluated the influence of topography on fire history patterns in two contrasting landscapes within the Santa Catalina Mountains of southeastern Arizona. Multiple fire-scarred trees from randomly selected 2-ha plots were used to develop plot composite mea...
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Precise characterization of hydroclimate variability in Amazonia on various timescales is critical to understanding the link between climate change and biodiversity. Here we present absolute-dated speleothem oxygen isotope records that characterize hydroclimate variation in western and eastern Amazonia over the past 250 and 20 ka, respectively. Although our records demonstrate the coherent mill...
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The main goal of this study was to reconstruct the Late Pleistocene-Holocene floristic composition in an area of the northern Brazilian Amazonia, comparing the results with other Amazonian localities in order to discuss the factors that have influenced phytophysiognomic changes over this time period. The work in eastern Marajó Island at the mouth of the Amazonas River was approached based on an...
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ژورنال
عنوان ژورنال: Earth Surface Dynamics
سال: 2014
ISSN: 2196-632X
DOI: 10.5194/esurf-2-493-2014