BOULDER, Colorado, Feb. 5 -- Geosphere, a journal on geosciences from the Geological Society of America, published research articles on the following topics in its February 2024 edition (Vol. 20, No. 1): Current Issue Articles: * Reconciling complex stratigraphic frameworks reveals temporally and geographically variable depositional patterns of the Campanian Ignimbrite * Precursors to a continental-arc ignimbrite flare-up: Early central volcanoes of the San Juan Mountains, Colorado, USA * T  more