Shallow Thermal Anomalies and their Role in the Breakup Evolution along the Conjugate Margins of the Fram Strait (Svalbard and eastern North Greenland), Indicated by Low-temperature Thermochronology

Here we present thermochronology data from sedimentary rock samples of late Cretaceous to Paleogene age with unusually high thermal maturities from eastern North Greenland and western Svalbard. The data are interpreted and discussed in the article "Shallow Thermal Anomalies and their Role in the Breakup Evolution along the Conjugate Margins of the Fram Strait (Svalbard and eastern North Greenland), Indicated by Low-temperature Thermochronology", submitted to the journal Geochemistry, Geophysics, Geosystems. The data include apatite (U-Th-Sm)/He analyses (table S2) and apatite fission track analyses (dataset S1). We used the thermochronology data to derive time-temperature histories. In the document "Supporting Information", we provide the analytical protocols (Text S1-3, S5), data visualization and assessment for influences and relationships (Figures S2, S3, S4), modelling strategy, parameters and results (Text S4, Figure S5, Table S3), and thin section analyses of the host rock and associated quartz veins (Figures S6-9, Table S4-5). It also contains a summary of the analysed samples, their sampling locations and the resulting AFT and AHe ages (Table S1).本数据集收录了采自北格陵兰东部与斯瓦尔巴德西部的沉积岩样品的热年代学数据，这些样品形成于晚白垩世至古近纪，且具有异常高的热成熟度。相关数据的解读与讨论见于已投稿至《Geochemistry, Geophysics, Geosystems》期刊的论文《浅部热异常及其在弗拉姆海峡共轭边缘（斯瓦尔巴德与北格陵兰东部）裂解演化中的作用——基于低温热年代学的指示》。本数据集包含磷灰石（U-Th-Sm）/He分析数据（表S2）与磷灰石裂变径迹（Apatite Fission Track, AFT）分析数据（数据集S1）。我们利用该热年代学数据重建了时间-温度演化历史。在《支持信息》文档中，我们提供了分析流程（文本S1-3、S5）、数据可视化与影响因素、相关性评估内容（图S2、S3、S4）、模拟策略、参数及结果（文本S4、图S5、表S3），以及主岩与伴生石英脉的薄片分析结果（图S6-9、表S4-5）。该支持信息还汇总了所分析样品的相关信息，包括其采样位置与所得的AFT与AHe年龄数据（表S1）。