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引用本文:周乐,刘元晴,李伟,朱庆俊,李凤哲,吕琳,邓启军,马雪梅,何锦. 山东大汶河流域中上游古近系含水岩组水文地质特征[J]. 中国地质, 2019, 46(2): 316-327.
ZHOU Le,LIU Yuanqing,LI Wei,ZHU Qingjun,LI Fengzhe,LÜ Lin,Deng Qijun,MA Xuemei,HE Jin. Characteristics of the Paleogene water-bearing Formation in the middle and upper reaches of the Dawenhe River basin, Shandong Province[J]. Geology in China, 2019, 46(2): 316-327(in Chinese with English abstract).
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山东大汶河流域中上游古近系含水岩组水文地质特征
周乐, 刘元晴, 李伟, 朱庆俊, 李凤哲, 吕琳, 邓启军, 马雪梅, 何锦
中国地质调查局水文地质环境地质调查中心, 河北 保定 071051
摘要:
利用古近系大汶口组及朱家沟组含水岩组5眼施工钻孔及55眼井孔调查资料,通过岩心、地下水常规离子组分及氢氧同位素样品测试结果,研究大汶河流域中上游莱芜盆地、大汶口盆地古近系含水岩组分布特征、物性及富水性、地下水化学及补给循环特征。结果表明:富水较好的大汶口组上段位于盆地腹部偏北,含水层岩性为半固结砂砾岩,水化学类型HCO3-Ca·Mg型为主;朱家沟组含水岩组位于盆地边界断裂下降盘,含水层岩性为溶蚀发育的灰质砾岩,水化学类型复杂多变。现代大气降水作为地下水主要补给来源,蒸发浓缩作用,方解石、白云石和石膏溶解及人类污染活动参与了地下水化学组分的形成。归纳总结3种古近系不同类型含水岩组地下水富集规律:构造裂隙控水模式、半固结含水岩组裂隙孔隙水富集模式和灰质砾岩裂隙岩溶水富集模式。
关键词:  大汶口组  朱家沟组  灰质砾岩  水文地质  富水模式
DOI:10.12029/gc20190208
分类号:P641
基金项目:国家自然科学基金项目(41240021)和中国地质调查局水工环地质调查项目(DD20160289,DD20190259)联合资助。
Characteristics of the Paleogene water-bearing Formation in the middle and upper reaches of the Dawenhe River basin, Shandong Province
ZHOU Le, LIU Yuanqing, LI Wei, ZHU Qingjun, LI Fengzhe, LÜ Lin, Deng Qijun, MA Xuemei, HE Jin
Center for Hydrogeology and Environmental Geology Survey, China Geological Survey, Baoding 071051, Hebei, China
Abstract:
Using data of 5 drill holes of the Dawenkou and the Zhujiagou Formation, combined with data from 55 drill holes obtained in hydrogeology survey, the authors studied the characteristics of distribution, physical properties, water-bearing condition, hydrochemistry and groundwater recharge cycle of the Paleogene water-bearing formation in the middle and upper reaches of the Dawenhe River basin. The results show that the watery upper section of Dawenkou Formation is distributed in the north of the basin. The lithology of the aquifer is semi-consolidated conglomerate with HCO3-Ca·Mg type. The Zhujiagou Formation is distributed in the depression plate of boundary faults, with good dissolution calcareous conglomerate aquifer media and complex hydrochemical types. Modern precipitation is the main source of groundwater recharge. Evaporation and concentration, dissolution of calcite, dolomite and gypsum and polluting activities have participated in the formation of hydrochemical components. This paper sums up 3 groundwater enrichment patterns of different Paleogene water-bearing formations:water controlled by structural fractures, fracture and pore water enrichment in semi-consolidated water-bearing formation, and fractured karst water enrichment in calcareous conglomerate.
Key words:  Dawenkou Formation  Zhujiagou Formation  calcareous conglomerate  hydrogeology  groundwater enrichment pattern