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Hoffimann Jlio Augusto Jos Resende Lucas Mathias Marlon Mazzinghy Douglas Bianchetti Matheus Mendes Mnica Souza Thiago Andrade Vitor Domingues Tarcsio Silva Wesley Silva Ruberlan Couto Danielly Fonseca Elisabeth Gonalves Keila 《Mathematical Geosciences》2022,54(7):1227-1253
Mathematical Geosciences - In mine planning, geospatial estimates of variables such as comminution indexes and metallurgical recovery are extremely important to locate blocks for which the energy... 相似文献
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Danielly Godiva Heitor Evangelista Milton Kampel Marcus Vinicius Licinio Casimiro Munita 《Estuarine, Coastal and Shelf Science》2010
Coral and reef environments in shallow waters are negatively affected by human activities in several coastal areas worldwide. It has been demonstrated that sediment influx and macronutrient discharges induce decline of coral population structure and diversity. Therefore, efforts to quantify sediment flux, sources and the biological response to sedimentation were conducted by several marine researchers. Herein, we investigated the case study of Armação dos Búzios/Brazil/Western South Atlantic, where coral colonies (mostly Siderastrea stellata) are under stress due to sediment apportionment as a consequence of regional human occupation. Classification of potential sediment source regions was based on a high-resolution aerogammaspectrometry survey for 232Th, 238U and 40K in main land near shore, used as primarily tool, in combination with sediment geochemistry. This approach allowed distinguishing three hydrographic basins (Macaé river basin, São João river basin and Una river basin) as potential sources. Hierarchical cluster analysis applied to the set of parameters identified the Macaé River as the most probable sediment contributor to the coralline site. 相似文献
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