New palaeogeographical reconstructions for the earlier Ordovician (480 Ma), and later
Ordovician (450 Ma) integrate revised longitude-calibrated palaeomagnetic reconstructions …

The porosity and permeability of sandstone and carbonate reservoirs (known as reservoir
quality) are essential inputs for successful oil and gas resource exploration and exploitation …

On multimillion-year time scales, Earth has experienced warm ice-free and cold glacial
climates, but it is unknown whether transitions between these background climate states …

Understanding ancient climate changes is hampered by the inability to disentangle trends in
ocean temperature from trends in continental ice volume. We used carbonate “clumped” …

The main controlling factors of organic matter accumulation in the Upper Ordovician Wufeng–
Lower Silurian Longmaxi Formations are complex and remain highly controversial. This …

The Ordovician Period, long considered a supergreenhouse state, saw one of the greatest
radiations of life in Earth's history. Previous temperature estimates of up to∼ 70° C have …

The extensive work carried out during more than a decade by the International
Subcommission on Ordovician Stratigraphy has resulted in a new global classification of the …

Following the Cambrian Explosion and the appearance in the fossil record of most animal
phyla associated with a range of new body plans, the Ordovician and Silurian periods …

The Late Ordovician period, ending 444 million years ago, was marked by the onset of
glaciations. The expansion of non-vascular land plants accelerated chemical weathering …

The Ordovician Period (~ 485-444 Ma) was an interval of major, causally interconnected 15
changes in the Earth's biotic, climatic, and environmental systems. The diversity of marine …