Saspiturry.et.al.2020.Mauléon.basin.RSCM.peak.temperatures

The fossil rift in the North Pyrenean Zone, which underwent high temperature–low pressure metamorphism and alkaline magmatism during Early Cretaceous hyperextension, was studied to explore the geothermal regime at the time of rifting. In this work, we used Raman lab analysis to shed light on the distribution of geothermal gradients across the inverted hyperextended Mauléon rift basin. Data from a set of 155 samples from densely spaced outcrops and boreholes, has been analyzed using Raman spectroscopy of carbonaceous material.本研究针对早白垩世超伸展作用期间经历高温低压变质作用与碱性岩浆作用的北比利牛斯带古裂谷展开探究，旨在揭示该裂谷作用时期的地热体制。本次工作借助拉曼实验室分析方法，阐明了经反转的超伸展莫利永（Mauléon）裂谷盆地的地热梯度分布特征。研究对采自密间距露头与钻孔的155件样品所组成的数据集，采用含碳物质拉曼光谱分析法（Raman spectroscopy of carbonaceous material）进行了分析。