干旱区生态环境知识资源中心(Arid): GEOCHEMISTRY AND MINERALOGY OF ALLUVIAL DEPOSITS IN THE RIACHO DO TIGRE BASIN, SEMI-ARID REGION OF THE PARAIBA

Arid

	GEOCHEMISTRY AND MINERALOGY OF ALLUVIAL DEPOSITS IN THE RIACHO DO TIGRE BASIN, SEMI-ARID REGION OF THE PARAIBA
	Pereira de Lima Silva, Adonai Felipe; Praca de Souza, Jonas Otaviano
通讯作者	Silva, AFPD
来源期刊	GEOGRAPHIA-UFF
ISSN	1517-7793
出版年	2020
卷号	22 期号:49
英文摘要	The water deficit in the Brazilian semi-arid region is a problem both in terms of economics and concerning water quality and human health. In this sense, sediment analysis gains importance for environmental planning, as it is the final destination of polluting heavy metals and soluble salts contained in groundwater or surface water. This research consisted of the geochemical and mineralogical analysis of the alluvial deposits of the Riacho do Tigre Basin - PB, such as the variety and occurrence of specific chemical and mineral elements identified in the samples, using the techniques of X-Ray Fluorescence (FRX) and X-Ray Diffraction (XRD). Samples were collected from five points of analysis, selected by the proximity of the alluvial section with shallow wells used by the local community, considering the possibility of contamination of the aquifer by sediment in different units. The results indicated that the widest variety of minerals on sections 1, and 3, the only point with traces of heavy metal, chromium. On sections 2 and 4 showed a predominance of silicon oxide minerals, such as quartz, tridymite (in section 2) and cristobalite (in section 4). In section 5, silica corresponds only to quartz, and it was also possible to identify another mineral, which is magnetite, despite having a diffraction peak with low intensity. The identified minerals coincide with the lithological characteristics of the Riacho do Tigre basin.
英文关键词	Dryland Environmental Geochemistry Alluvial Deposits
类型	Article
语种	葡萄牙语
收录类别	ESCI
WOS记录号	WOS:000591513600011
WOS类目	Geography
WOS研究方向	Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334748
作者单位	[Pereira de Lima Silva, Adonai Felipe] Univ Fed Paraiba, Geog, Joao Pessoa, Paraiba, Brazil; [Praca de Souza, Jonas Otaviano] Univ Fed Paraiba, Ctr Ciencias Exatas & Nat, Dept Geociencia, Joao Pessoa, Paraiba, Brazil
推荐引用方式 GB/T 7714	Pereira de Lima Silva, Adonai Felipe,Praca de Souza, Jonas Otaviano. GEOCHEMISTRY AND MINERALOGY OF ALLUVIAL DEPOSITS IN THE RIACHO DO TIGRE BASIN, SEMI-ARID REGION OF THE PARAIBA[J],2020,22(49).
APA	Pereira de Lima Silva, Adonai Felipe,&Praca de Souza, Jonas Otaviano.(2020).GEOCHEMISTRY AND MINERALOGY OF ALLUVIAL DEPOSITS IN THE RIACHO DO TIGRE BASIN, SEMI-ARID REGION OF THE PARAIBA.GEOGRAPHIA-UFF,22(49).
MLA	Pereira de Lima Silva, Adonai Felipe,et al."GEOCHEMISTRY AND MINERALOGY OF ALLUVIAL DEPOSITS IN THE RIACHO DO TIGRE BASIN, SEMI-ARID REGION OF THE PARAIBA".GEOGRAPHIA-UFF 22.49(2020).