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Geodiversity Index Map of Rio Grande do Norte State, Northeast Brazil: Cartography and Quantitative Assessment
Geoheritage ( IF 2.9 ) Pub Date : 2021-01-30 , DOI: 10.1007/s12371-021-00532-4
Marília Cristina Santos Souza Dias , Jéssica Oliveira Domingos , Silas Samuel dos Santos Costa , Marcos Antonio Leite do Nascimento , Matheus Lisboa Nobre da Silva , Larissa Praxedes Granjeiro , Rafael Felipe de Lima Miranda

The values of geodiversity, defined through different qualitative and/or quantitative methods, represent a fundamental asset for the development of geoconservation actions. Quantitative methods can be considered those of less subjectivity since their dependence on the evaluator and its scientific knowledge is restricted. In turn, aiming to clearly expose the achieved results, this work used geoprocessing tools, as it has been used in several studies of geodiversity index in Brazil. Rio Grande do Norte, a state located in the extreme northeast and one of the smallest of the country, still does not have an assessment for its entire territory, despite being geologically diverse, with rocks dated back from the Archean until the Holocene. Thus, the objective of this work is to fill this gap in the studies of Brazilian geodiversity. For this, we used the evaluation methodology based on the grid overlay, with 5.5 × 5.5 km mesh, on the available cartographic bases: lithology, mineral occurrences, geomorphology, pedology, and hydrography. The thematic subindexes were added, which resulted in the geodiversity index map for the entire state. It was classified into five classes: very low, low, medium, high, and very high. It was verified that most of the state is in low areas in the geodiversity index and that the high and very high areas are concentrated in specific portions, mainly in three distinct regions: Eastern Seridó, Center-East, and Eastern Coast. It was observed that Rio Grande do Norte state is endowed with high potential regions of geodiversity.



中文翻译:

巴西东北北里奥格兰德州地球多样性指数地图:制图和定量评估

通过不同的定性和/或定量方法定义的地球多样性价值,是发展地球保护行动的一项基本资产。定量方法可以认为是主观性较低的方法,因为它们对评估者及其科学知识的依赖受到限制。反过来,为了清楚地展示所取得的成果,这项工作使用了地理处理工具,因为该工具已在巴西的一些地球多样性指数研究中使用。北里奥格兰德州(Rio Grande do Norte)位于东北端,是该国最小的州之一,尽管地理位置多样,但其整个领土的评估仍未得到评估,其岩石可追溯到太古宙直到全新世。因此,这项工作的目的是填补巴西地理多样性研究的空白。为了这,我们使用基于5.5×5.5 km网格的网格覆盖层的评估方法,基于可用的制图基础:岩性,矿物赋存,地貌,土壤学和水文学。添加了主题子索引,从而生成了整个州的地球多样性指数图。它分为五类:极低,低,中,高和极高。事实证明,该州的大部分地区处于地球多样性指数的低洼地区,而高海拔和高海拔地区则集中在特定部分,主要集中在三个不同的区域:塞里多东部,中东部和东部海岸。据观察,北里奥格兰德州拥有高潜力的地球多样性地区。矿产,地貌,水文和水文。添加了主题子索引,从而生成了整个州的地球多样性指数图。它分为五类:极低,低,中,高和极高。事实证明,该州的大部分地区处于地球多样性指数的低洼地区,而高海拔和高海拔地区则集中在特定部分,主要集中在三个不同的区域:塞里多东部,中东部和东部海岸。据观察,北里奥格兰德州拥有高潜力的地球多样性地区。矿产,地貌,水文和水文。添加了主题子索引,从而生成了整个州的地球多样性指数图。它分为五类:极低,低,中,高和极高。事实证明,该州的大部分地区处于地球多样性指数的低洼地区,而高海拔和高海拔地区则集中在特定部分,主要集中在三个不同的区域:塞里多东部,中东部和东部海岸。据观察,北里奥格兰德州拥有高潜力的地球多样性地区。事实证明,该州的大部分地区处于地球多样性指数的低洼地区,而高海拔和高海拔地区则集中在特定部分,主要集中在三个不同的区域:塞里多东部,中东部和东部海岸。据观察,北里奥格兰德州拥有高潜力的地球多样性地区。事实证明,该州的大部分地区处于地球多样性指数的低洼地区,而高海拔和高海拔地区则集中在特定部分,主要集中在三个不同的区域:塞里多东部,中东部和东部海岸。据观察,北里奥格兰德州拥有高潜力的地球多样性地区。

更新日期:2021-01-31
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