Digital data sets that describe aquifer characteristics of the alluvial and terrace deposits along the North Canadian River from Oklahoma City to Eufaula Lake in east-central Oklahoma

This data set consists of digital aquifer boundaries for the alluvial and terrace deposits along the North Canadian River from Oklahoma City to Eufaula Lake in east-central Oklahoma. Ground water in 710 square miles of Quaternary alluvial and terrace deposits along the North Canadian River is an important source of water for irrigation, industrial, municipal, stock, and domestic supplies. The aquifer, composed of alluvial and terrace deposits, consists of sand, silt, clay, and gravel. The aquifer is underlain and in hydraulic connection with the upper zone of the Permian-age Garber-Wellington aquifer and the Pennsylvanian-age Ada-Vamoosa aquifer. The aquifer boundaries were digitized from a published ground-water modeling report and some lines were extracted from published digital geology data sets.本数据集包含俄克拉荷马州中东部地区沿北加拿大河（North Canadian River）从俄克拉荷马城至尤法卢湖（Eufaula Lake）一带的冲积与阶地沉积层的数字化含水层（aquifer）边界。该河流沿岸、面积达710平方英里的第四纪（Quaternary）冲积与阶地沉积层中的地下水，是灌溉、工业、市政、畜牧及生活供水的重要水源。该含水层由冲积与阶地沉积层构成，其组成物质包括砂、粉土、黏土与砾石。该含水层下伏于二叠纪（Permian）盖伯-威灵顿（Garber-Wellington）含水层上部区域及宾夕法尼亚纪（Pennsylvanian）阿达-瓦穆萨（Ada-Vamoosa）含水层上部区域，且二者之间存在水力联系。 本次含水层边界数据源自已公开的地下水模拟报告的数字化处理，部分界线则从已公开的数字化地质数据集中提取得到。