Paleomagnetic dating of fluid-flow events in dolomitized Caledonian basement rocks, central Scotland

摘要

Paleomagnetic results suggest that there was a fluid-flow event which caused dolomitization and hematite authigenesis in serpentinite within the Highland Border Group along the Highland Boundary Fault in central Scotland in the late Carboniferous/early Permian. Geochemical data indicate that the fluid was hydrothermal in origin, and in addition to causing hematite authigenesis, the fluid also thermally remagnetized pre-existing magnetite in the serpentinite.