Abstract Cyclostratigraphic analyses of Upper Pliensbachian and Lower Toarcian carbon-13
isotope (δ 13 C) data, together with radiometric dating, are used to calibrate biozones and …

The study of well-preserved organic matter (OM) within mineral concretions has provided
key insights into depositional and environmental conditions in deep time. Concretions of …

Throughout Earth's history, variations in atmospheric CO2 concentration modulated climate.
Understanding changes in atmospheric carbon cycle is therefore pivotal in predicting …

A sequence stratigraphic framework predicts that time averaging and hiatus durations will be
long at times of fastest sea‐level rise. This prediction does not necessarily apply to …

Authigenic carbonate (AC) forms in siliciclastic marine sediments in part as a result of the
degradation of organic matter and methane. Degradation pathways vary considerably and …

Mm-scale and/or µm-scale in situ inorganic geochemical analyses of organic-rich, laminated
fine-grained sediments increasingly offer decadal or even seasonal perspectives of …

Marine calcium cycling is closely linked with carbon cycling in the ocean, in which
authigenic carbonates precipitated in sediments play a non-negligible role. However …

A sedimentological, biostratigraphical and geochemical (stable isotopes and Rock‐Eval
parameters) analysis was performed on four Swiss successions, in order to examine the …

Carbonate concretions are concentrated along discrete stratigraphic horizons within Middle
and Upper Devonian carbonaceous black and organic-deficient gray shale of western New …

In the vast majority of fossils, the organic matter is degraded with only an impression or cast
of the organism remaining. In rare cases, ideal burial conditions result in a rapid fossilisation …