Glycerol dialkyl glycerol tetraether (GDGT) lipids are membrane lipids which were long
thought to be synthesized mainly by archaea, organisms thought to be limited to extreme …

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

Early Cretaceous life and the environment were strongly influenced by the accelerated
break up of Pangaea, which was associated with the formation of a multitude of rift basins …

Abstract The Early Cretaceous Ontong Java Plateau was emplaced at almost the same time
as marine biotic changes that culminated in oceanic anoxic event 1 (OAE1a). A causative …

The mid-Cretaceous was marked by emplacement of large igneous provinces (LIPs) that
formed gigantic oceanic plateaus, affecting ecosystems on a global scale, with biota forced …

Sedimentary 2-methyhopanes have been used as biomarker proxies for cyanobacteria, the
only known bacterial clade capable of oxygenic photosynthesis and the only group of …

Several studies have been conducted to reconstruct temperature variations across the
Aptian Stage, particularly during early Aptian Oceanic Anoxic Event (OAE) 1a. There is a …

Abstract During the Aptian Oceanic Anoxic Event 1a, about 120 million years ago, black
shales were deposited in all the main ocean basins. The event was also associated with …

An abrupt rise in temperature, forced by a massive input of CO 2 into the atmosphere, is
commonly invoked as the main trigger for Oceanic Anoxic Events (OAEs). Global warming …

The two major oceanic anoxic events of the Cretaceous, those of the Early Aptian (OAE 1a)
and the Cenomanian–Turonian boundary (OAE 2), registered some of the highest …