Geogenic Petrothermal Potential Assessment based on a Stratigraphic Grid of the Hessian Mid-German Crystalline High

Large scaled geothermal potential assessments often require geological 3D-structural models of the area of interest. For assessing petrothermal potentials of the Hessian basement, a regional scaled geological 3D-structural model of the hessian Mid German Crystalline High (Weinert et al. 2022a) was created within the scope of the project Hessen 3D 2.0 (Federal Ministry for Economic Affairs and Energy; funding number:0325944A). The spatial confinement is defined by the scope of Hessen 3D 2.0, and therefore, the lateral extension of the basement model is constrained within the (simplified) boarder of federal state of Hesse. Vertical constraints are set to 400 m b.g.l. and a maximum model depth of 6,000 m below sea level. A qualitative petrothermal potential assessment is calculated based on a SKUA-GOCAD SGrid of the Hessian Mid-German Crystalline High (Weinert et al. 2023). In total, the SGrid contains 8 modeling units comprising (I) Frankenstein complex, (II) Flasergranitoid zone, (III) Weschnitz pluton, (IV) Tromm pluton, (V) Heidelberg granites, (VI) granites and granodiorites, (VII) diorites and gabbros and (VIII) metamorphic rocks. Data in the repository is provided as GOCAD-SKUA stratigraphic grid in .sg-file format. The provided SGrid is parameterized and contains the following properties: (I) cell volume of all regions (II) results of a heat in place calculation and (III) results of a heat in place calculation per m³.

大规模地热潜力评估通常需要针对目标区域构建地质三维结构模型。为评估黑森州基底的岩石热潜力，研究团队在"Hessen 3D 2.0"项目（联邦经济事务与能源部资助，资助编号：0325944A）框架内，构建了黑森州境内中德国结晶高地（Hessian Mid German Crystalline High，Weinert等，2022a）的区域尺度地质三维结构模型。该模型的空间范围由"Hessen 3D 2.0"项目的研究边界确定，因此基底模型的横向延展范围被约束在黑森州（简化）边界内。垂向约束设置为地面以下400米，模型最大埋深为海平面以下6000米。基于黑森州境内中德国结晶高地的SKUA-GOCAD SGrid网格（Weinert等，2023），研究人员完成了定性岩石热潜力评估。该SGrid网格共包含8个建模单元，分别为：(I) 弗兰肯斯坦杂岩体、(II) 纤长花岗岩质岩带、(III) 韦施尼茨深成岩体、(IV) 特罗姆深成岩体、(V) 海德堡花岗岩体、(VI) 花岗岩与花岗闪长岩、(VII) 闪长岩与辉长岩以及(VIII) 变质岩。本数据集仓库中的数据以GOCAD-SKUA地层网格的.sg文件格式提供。本次提供的SGrid网格已完成参数化处理，包含以下三类属性：(I) 各区域的单元体积、(II) 原地热总量计算结果以及(III) 单位立方米原地热含量计算结果。