Abstract The Permian Fengcheng Formation in the Mahu Sag in the Junggar Basin
represents deposition in a rare alkaline saline lake, with hydrologically closed conditions …

Lipid biomarkers have been extensively applied for tracing organisms and evolutionary
processes through Earth's history. They have become especially important for the …

Spectroscopic instruments are increasingly being implemented in the search for
extraterrestrial life. However, microstructural spectral analyses of alien environments could …

Evidence indicates that Gale crater on Mars harboured a fluvio-lacustrine environment that
was subjected to physio-chemical variations such as changes in redox conditions and …

If past life ever existed on Mars, what are the multiple ways it could have been preserved in
the Martian geological record? This crucial question is becoming especially relevant the …

Lipid biomarkers preserved in ancient rocks have the potential to reveal much about ancient
ecosystems. However, establishing that the compounds of interest are syngenetic has …

Modern microbialites in Argentina's Puna (Central Andes) are considered a reliable tool for
understanding the evolution of early life on our planet and developing strategies for …

In this work, the organic matter content present in core samples from the Mahogany Zone of
the Green River Formation was examined in order to better understand the sources of …

The Perseverance rover (Mars 2020) is equipped with an instrumental and analytical
payload capable of identifying a broad range of organic molecules in geological samples …

Biosignatures are any substance, compound, molecule, phenomenon, or pattern that signals
past or present life. Biosignatures can be morphological, isotopic, chemical, or molecular in …