Terrestrial fluvial and lacustrine sediments accumulated in small basins of mid Devonian to early Carboniferous age.
The Cobequid Highlands include the only thick early Carboniferous basalt succession in Atlantic Canada, overlying several kilometres of latest Devonian rhyolite.
In contrast, mid Devonian to early Carboniferous rocks of the Murphy Brook Formation, Fountain Lake Group, and Horton Group show rapid changes in facies and thickness, with common occurrence of conglomerate and lacustrine deposits, all suggesting deposition in fault-bound terrestrial basins.
Occurrence of high-Zr rhyolites, early Carboniferous, Cobequid Highlands, Nova Scotia: temperature effect of a contemporaneous mafic magma.
Early Carboniferous hydrothermal events of the western Cobequid Highlands, Nova Scotia.
The stratigraphy and geochemistry of late Devonian to early Carboniferous volcanic rocks of the northern Chignecto peninsula, Cobequid Highlands, Nova Scotia.
Despite the relative large analytical uncertainties, the data clearly show that the sill intruded and crystallized in Early Carboniferous times.
In terms of composition and age, the intrusions in NE Poland and the sills in the Baltic Sedimentary Basin fit the early Carboniferous magmatic activity in the northern Variscan foreland west of the Teisseyre-Tornquist Zone (TTZ; mainly Great Britain and Ireland).
Yet, the compressional tectonic phase was most likely initiated after cessation of igneous activity as no cause for far-field tectonic compression can be identified for the Early Carboniferous.
39]Ar plateau age for groundmass plagioclase shows that the sills intruded in the Early Carboniferous and a considerable age gap exists between the magmatic activity in the Baltic Sea and the 310-250 Ma magmatic rocks in southern Scandinavia and northern Germany.
Hidden alkaline and carbonatite province of Early Carboniferous age in northeast Poland: zircon U-Pb and pyrrhotite Re-Os geochronology.