Thermal history of deeply buried sedimentary rocks in the vicinity of salt diapirs (Schleswig-Holstein area)

盐底辟附近深埋沉积岩的热史（石勒苏益格-荷尔斯泰因地区）

• 批准号: 5403425
• 负责人: Professor Dr. Ralf Littke
• 金额: --
• 依托单位: Lehrstuhl für Organische Biogeochemie in Geo-Systemen (OBG)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5403425?language=en
• 关键词: Thermal; history; deeply; buried; sedimentary

A detailed study of the thermal evolution of deeply buried Mesozoic and Palaeozoic sedimentary rocks in the Schleswig-Holstein area is proposed to bridge the gap to adjacent areas in the Central European Basin studied previously. The Schleswig-Holstein area has a complex basin evolution reaching maximum burial and hence thermal maturation partly during Mesozoic (Jurassic) times and partly during the Neogene. Furthermore, it is characterized by the most intensive salt tectonics within the entire basin. As salt has a much higher thermal conductivity than other sedimentary rocks, the temperature and maturity distribution in the basin will be significantly affected by salt tectonics. Accordingly, it is one major goal of this project to study maturity evolution in the vicinity of salt domes. Many other sedimentary basins, including major oil and gas provinces, are also charaterized by abundant salt diapirs and other salt structures. Therefore, the results of this part can be applied to other basins as well. The German petroleum industry meanwhile agreed to allow sampling in the vicinity of two important salt structures within the Central European Basin. Finally high levels of maturation are to be expected in the Palaeozoic section of the Schleswig-Holstein area, but evolution of vitrinite maturation at such high maturation levels has not been studied sufficiently. Therefore laboratory experiments on maturation of prematured vitrinite should be perfomed. The results can be of great importance in other numerical basin modelling studies.

建议对石勒苏益格-荷尔斯泰因地区深埋的中、古生代沉积岩进行详细的热演化研究，以弥合先前研究的中欧盆地与邻近地区之间的差距。石勒苏益格-荷尔斯泰因地区具有复杂的盆地演化，达到最大埋藏，因此热成熟部分在中生代(侏罗纪)，部分在新近纪。此外，它的特点是整个盆地内最强烈的盐构造。由于盐岩具有比其他沉积岩更高的导热系数，盆地内的温度和成熟度分布将受到盐构造的显著影响。因此，研究盐丘附近的成熟度演化是本项目的主要目标之一。许多其他沉积盆地，包括主要的石油和天然气省，也具有丰富的盐底辟和其他盐构造的特点。因此，这一部分的研究成果也可以推广到其他流域。与此同时，德国石油业同意允许在中欧盆地内两个重要盐岩构造附近进行采样。石勒苏益格-荷尔斯泰因地区古生代剖面具有较高的成熟度，但镜质组在如此高成熟度下的演化还没有得到充分的研究。因此，应开展早熟镜质组的室内成熟度实验。研究结果对其他数值盆地模拟研究具有重要意义。