Aptian carbonate rocks of Santos Basin in the Brazilian southeastern continental margin
show a highly heterogeneous reservoir quality conditioned by many controlling factors. This …

The recognition of past habitable environments on Mars has increased the urgency to
understand biosignature preservation in and characterize analogues of these environments …

The lacustrine carbonate rocks of the giant Pre-salt oil-fields in the Santos and Campos
Basins differ in a number of important aspects from classic lake deposits. Prior work has …

Abstract During the Aptian (Cretaceous), in what is now the South Atlantic, the largest
chemogenic (abiotic) carbonate factory so far identified in the Phanerozoic geological record …

A key problem of how to distinguish between biotic and abiotic carbonate minerals in nature
and/or in the laboratory has confused researchers for some time. Although numerous …

The Aptian lacustrine carbonates of the Barra Velha Formation, offshore Brazil, have
undergone a highly unusual paragenetic and diagenetic history and present significant …

Abstract The “Dolomite Problem” has been a controversy for over a century, owing to
massive assemblages of low-temperature dolomite in ancient rocks with little dolomite …

Rock samples from two cores within the Triassic interval of the Puglia 1 well, were studied to
reveal the sedimentary facies and diagenesis. The Core 1 (5.048–5.056 m deep) is …

Travertines, which precipitate from high temperature water saturated with calcium carbonate,
are generally considered to be dominated by physico-chemical and microbial precipitates …

Biomineralization induced by microorganisms has become a hot spot in the field of
carbonate sedimentology; however, the mechanisms involved still need to be explored. In …