There has been considerable controversy concerning the role of chemical weathering in the
regulation of the atmospheric partial pressure of carbon dioxide, and thus the strength 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 …

A total of 2128 calcitic and phosphatic shells, mainly brachiopods with some conodonts and
belemnites, were measured for their δ 18O, δ 13C and 87Sr/86Sr values. The dataset covers …

Variations in the 13C/12C value of total dissolved inorganic carbon (DIC) in the world's
oceans through time have been documented through stratigraphic study of marine …

The first book to review all the evidence concerning both the dinosaur extinctions and all the
other major extinctions-of plant, animal, terrestrial, and marine life-in the history of life. All the …

The Corg: P ratios of organic-rich facies (TOC> 1%) exhibit considerable variation through
the Phanerozoic, from< 10: 1 in the Permian Phosphoria Formation to> 1000: 1 in some …

Review of sea-level changes during the big five mass extinctions and several lesser
extinction events reveals that the majority coincide with large eustatic inflexions. The degree …

▪ Abstract Near the end of the Late Ordovician, in the first of five mass extinctions in the
Phanerozoic, about 85% of marine species died. The cause was a brief glacial interval that …

Gondwanaland lasted from the 650–500 Ma (late Neoproterozoic-Cambrian) amalgamation
of African and South American terranes to Antarctica–Australia–India through 320 Ma (mid …

L'influence de la glaciation du Gondwana à l'Ordovicien supérieur et au Silurien de la
Baltique. Un test de la cyclicité de l'environnement à l'aide des isotopes du carbone, Sur le …