This ArcGIS-based project built on the preceding 2013-2014 Circum-Arctic Provenance Database Project by updating previously complied datasets and integrating the following data into the Circum-Arctic Provenance Database: 1) CASP and literature U-Pb detrital zircon age data from Late Palaeozoic to Mesozoic strata from across the circum-Arctic region; 2) combined detrital zircon U–Pb and Hf isotope data, acquired as part of this project, from CASP samples of Triassic to Jurassic strata of the Sverdrup Basin and the Barents Shelf; and 3) a set of tectonic polygons from the Arctic region that were generated to help constrain when different areas were being uplifted and available for erosion. The project concluded by reviewing the stratigraphic and geographic distribution of Carboniferous-Triassic detrital zircons in Arctic Mesozoic strata. The source(s) of these grains and their potential sediment routing pathways were also explored. This was achieved by integrating the aforementioned datasets with palaeogeographic reconstructions created in GPlates. Studying the sediment routing of Arctic Late Palaeozoic to Mesozoic sandbodies has the potential to help test and refine tectonic models for the evolution of the Arctic region, including the opening of the Arctic Ocean, and to improve regional reservoir quality prediction.
The database now contains 3,570 sample records and 133,565 individual U-Pb analyses, together with 11,450 Lu-Hf analyses from 468 samples. Four reports were issued, each accompanied by an ArcGIS database.
Completed: July 2019.
Contact: Michael Flowerdew