Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology

• DOI: 10.1130/ges02277.1
• Publication Date: 2021-02-25T21:34:57Z
• Authors: Steven D. Andrews; Andrew Morton; Audrey Decou; Dirk Frei
• Keywords: Shetland; Geochronology

Abstract In this study, single-grain mineral geochemistry, detrital zircon geochronology, and conventional heavy-mineral analysis are used to elucidate sediment transport pathways that existed in the North Atlantic region during Triassic. The presence of lateral axial drainage systems is identified their source regions constrained. Axial suggested have likely delivered sourced East Greenland (Milne Land–Renland) as far south Viking Graben (>800 km). Furthermore, data highlight existence issuing from Western Norway Shetland Platform well a major east-west–aligned divide positioned adjacent Milne Land–Renland region. This separated catchments flowed north Boreal Ocean those into series endoreic basins and, ultimately, Tethys Sea. A further potential west Shetland. presented conclusions reached implications for reservoir prediction, correlation, throughout understanding networks Triassic can help constrain paleogeographic reconstructions provides an important framework construction facies models