CAJ | 학술논문

贵德县是青海省地方病危害最严重的地区之一.通过区域地质、构造及水文地质调查,表明:赋存于贵德群中的承压自流热水是当地饮水型氟中毒和砷中毒的致病水体;深度多小于400m,分布明显受控于NNW向压扭性断裂和NWW向张扭性断裂,并形成了两个异常中心.异常区围绕NEE向张扭性断裂带呈椭圆形展布,南北宽约5km,东西长约10km;其氟离子含量0.32～4.57mg/L,砷元素含量0.112～0.318mg/L,随深度和温度呈增高趋势;水温在16.0～45.9℃,pH较高,一般大于8.0,多属TDS 0.2～0.5g/L的HCO_3·SO_4·Cl-Na型淡水.为该地区防病改水提供了水文地质依据.
귀덕현시청해성지방병위해최엄중적지구지일.통과구역지질、구조급수문지질조사,표명:부존우귀덕군중적승압자류열수시당지음수형불중독화신중독적치병수체;심도다소우400m,분포명현수공우NNW향압뉴성단렬화NWW향장뉴성단렬,병형성료량개이상중심.이상구위요NEE향장뉴성단렬대정타원형전포,남북관약5km,동서장약10km;기불리자함량0.32～4.57mg/L,신원소함량0.112～0.318mg/L,수심도화온도정증고추세;수온재16.0～45.9℃,pH교고,일반대우8.0,다속TDS 0.2～0.5g/L적HCO_3·SO_4·Cl-Na형담수.위해지구방병개수제공료수문지질의거.
Guide county is one of the most serious areas for endemic in Qinghai Province. The survey results of regional geology, tectonics, and hydrogeology show that the confined and artesian thermal water from the Guide Group is pathogenic reason for fluorosis and arseniasis. The confined aquifer with two abnormal centers has a buried depth less than 400 meter and its distribution is controlled clearly by the compression-shear fault with NNW striking and tension-shear fault with NEE striking. The abnormal area around the tension-shear fault with NEE striking spreads as an ellipse with a 5 kilometer width and a 10 kilometer length. Fluorin and arsenic concentrations vary between 0. 35-4.57mg/L and 0. 112-0. 318mg/L, respectively, and their concentrations increase with depth and temperature. Occurrence temperature ranges from 16. 0 ℃to 45. 9 ℃, and pH is generally higher than 8. 0. Thermal water with TDS of 0. 2-0. 5g/L is of HCO_3 ·SO_4 ·Cl-Na type. The present study provides hydrogeological evidences for preventing endemic and improving water quality.