Inorganic geochemistry is a powerful tool in paleolimnology. It has become one of the most
commonly used techniques to analyze lake sediments, particularly due to the development …

Reduction–oxidation (redox) reactions occur during burial because sediments contain
reactive mixtures of oxidised and reduced components. Diagenetic chemical reactions …

Paleoredox conditions are commonly evaluated based on elemental proxies but, despite
their frequency of use, most of these proxies have received little comparative evaluation or …

Existing redox classifications and the calibrations of elemental proxies to modern
environmental redox scales are in need of re-evaluation. Here, we review environmental …

Abstract The Middle Permian Lucaogou Formation in the Santanghu Basin (northwest
China) develops one of the thickest salinized lacustrine organic-rich shale (SLORS) in the …

Matrix-related pore networks in mudrocks are composed of nanometer-to micrometer-size
pores. In shale-gas systems, these pores, along with natural fractures, form the flow-path …

Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analyses of
1,407 sedimentary (diagenetic and syngenetic) pyrites from 45 carbonaceous shale and …

Abstract Lower to Middle Eocene organic-rich deep-water limestones of the∼ 335-m-thick
(1100 ft) Radwany (Thebes-equivalent) Formation represent a source rock and a potential …

Oceanic anoxic events (OAEs) record profound changes in the climatic and
paleoceanographic state of the planet and represent major disturbances in the global …

Sedimentary pyrite formed in the water column, or during diagenesis in organic muds,
provides an accessible proxy for seawater chemistry in the marine rock record. Except for …