Searching for biosignatures in sedimentary rocks from early Earth and Mars

T Bosak, KR Moore, J Gong… - Nature Reviews Earth & …, 2021 - nature.com
The recognition of past habitable environments on Mars has increased the urgency to
understand biosignature preservation in and characterize analogues of these environments …

[HTML][HTML] Fissure ridges: A reappraisal of faulting and travertine deposition (Travitonics)

A Brogi, E Capezzuoli, V Karabacak, MC Alcicek, L Luo - Geosciences, 2021 - mdpi.com
The mechanical discontinuities in the upper crust (ie, faults and related fractures) lead to the
uprising of geothermal fluids to the Earth's surface. If fluids are enriched in Ca2+ and HCO3 …

Carbonate build-ups in lacustrine, hydrothermal and fluvial settings: comparing depositional geometry, fabric types and geochemical signature

G Della Porta - Geological Society, London, Special Publications, 2015 - lyellcollection.org
Carbonate build-ups in lakes, hydrothermal and fluvial settings are characterized by
distinctive geometry, spatial distribution, fabrics and geochemical signature but also by …

Evaporitic carbonates in the pre-salt of Santos Basin–Genesis and tectonic implications

F Farias, P Szatmari, A Bahniuk, AB Franca - Marine and Petroleum …, 2019 - Elsevier
Since the first discoveries of oil accumulations in the carbonate reservoirs of the Lower
Cretaceous Barra Velha Formation of the Santos Basin, their genesis has been the subject …

The influence of microbial mats on travertine precipitation in active hydrothermal systems (Central Italy)

G Della Porta, M Hoppert, C Hallmann… - The Depositional …, 2022 - Wiley Online Library
The study of hydrothermal travertines contributes to the understanding of the interaction
between physico‐chemical processes and microbial mats in carbonate precipitation. Three …

What do we really know about early diagenesis of non-marine carbonates?

E De Boever, AT Brasier, A Foubert, S Kele - Sedimentary Geology, 2017 - Elsevier
Non-marine carbonate rocks including cave, spring, stream, calcrete and lacustrine-
palustrine sediments, are susceptible to early diagenetic processes. These can profoundly …

Shrub morpho-types as indicator for the water flow energy-Tivoli travertine case (Central Italy)

MM Erthal, E Capezzuoli, A Mancini, H Claes… - Sedimentary …, 2017 - Elsevier
Abstract Travertines from Tivoli area (Central Italy) possess abundant shrub-like fabrics that
are laterally continuous over hundreds of square meters. They occur dominantly in …

Hydrothermal fluids circulation and travertine deposition in an active tectonic setting: Insights from the Kamara geothermal area (western Anatolia, Turkey)

A Brogi, MC Alcicek, CÇ Yalçıner, E Capezzuoli… - Tectonophysics, 2016 - Elsevier
Coexistence of thermal springs, travertine deposits and tectonic activity is a recurring feature
for most geothermal areas. Although such a certainty, their relationships are debated mainly …

Travertine deposits constraining transfer zone neotectonics in geothermal areas: An example from the inner Northern Apennines (Bagno Vignoni-Val d'Orcia area …

A Brogi, D Liotta, E Capezzuoli, PF Matera, S Kele… - Geothermics, 2020 - Elsevier
Studying travertine deposits and the network of banded calcite veins that form their roots in
the substratum can place important constraints on neotectonic activity and the …

Unusual stable carbon and oxygen isotope signature of Brazilian pre-salt travertine: Depositional and geochemical significances

GT Fontaneta, MF Figueiredo, LC Vieira, LC Falcão… - Chemical …, 2024 - Elsevier
Travertines are continental carbonate rocks formed from hot spring waters rich in calcium
and bicarbonate. The stable carbon and oxygen isotope signature for these rocks is well …