福建省东部浅层地下水地球化学

Geochemistry of shallow groundwater on east of Fujian province

摘要

摘要: 本文对福建东部地区3.8万平方公里陆地浅层地下水(井水)1206件样品中19种元素的含量特征、元素间的相关关系、元素空间分布特点与地质背景的关系等方面进行了研究。研究表明,该地区浅层地下水中以Ba、Cl-、F-、Fe、Mn、Sr、Zn元素含量高、变化幅度大为显著特征;元素含量与pH没有明显的相关关系,Cl-、Sr、Co、Ni、Pb等元素间则具显著的正相关关系,Cl-具有决定性作用;地下水中元素的空间分布特征受地质背景及地理条件的制约。
- 浅层地下水 /
- 地球化学 /
- 地质背景
Abstract: This paper describes the characteristics of ion contents, relativity, distribution of 19 elements in 1 206 shallow groundwater samples in the east of Fujian Province within 38 000km~2 . The relationships between hydrochemistry and geologic background is also examined. It is found that Ba, Cl~-, F~-, Fe, Mn, Sr, and Zn contents are high with a alrge range of vcalue. All the elements have no correlation with pH, while there is clear positive correlation among Cl~-、Sr、Co、Ni、Pb. Cl~-plays a decisive part on the elemental relationship. The distribution of elements is controlled by the geologic background and geographic condition.
- shallow groundwater /
- geochemistry /
- geologic background