The Cambrian diversification of animals was long thought to have begun with an explosive
phase at the start of the Tommotian Age. Recent stratigraphic discoveries, however, suggest …

The end of the Proterozoic Eon was a time of pronounced biological, biogeochemical,
climatic and tectonic change. New bio-and chemostratigraphic data provide an improved …

An improved and updated version of the statistical LOWESS fit to the marine 87Sr/86Sr
record and a revised look-up table (V3: 10/99; available from j. mcarthur@ ucl. ac. uk) based …

The recent proliferation of stratigraphic studies of δ13C variation in carbonates and organic
C in later Neoproterozoic and basal Cambrian successions (∼ 850-530 Ma) indicates a …

Sr and C isotopic data obtained on stratigraphic suites of well-preserved marine limestone
from Siberia, Namibia, Canada, Svalbard and East Greenland provide a relatively detailed …

Glacial deposits of Sturtian and Marinoan age occur in the well-studied Neoproterozoic
successions of northern Namibia, South Australia, and northwestern Canada. In all three …

New Sr and C isotopic data, both obtained on the same samples of marine carbonates,
provide a relatively detailed record of isotopic variation in seawater through the latest …

We report C, Sr, and O isotopic as well as selected major and trace element data from Late
Proterozoic (ca. 540–900 Ma) marine carbonates in three widely separated basins. The …

Chemostratigraphy has diverse applications to investigating the rock record, such as
reconstructing paleoenvironments, determining the tectonic setting of sedimentary basins …

We present REE patterns determined by isotope dilution mass spectrometry from 20
Precambrian banded iron formation (BIF) samples, ranging in age from 3.4 to 0.65 Ga. The …