Microbially catalyzed dolomite formation: from near-surface to burial

DA Petrash, OM Bialik, TRR Bontognali… - Earth-Science …, 2017 - Elsevier
Over the past century a number of models have been developed to explain the vast
stratigraphic distribution of authigenic dolomite. These models include hydrogeological …

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 …

Carbonate and silicate biomineralization in a hypersaline microbial mat (Mesaieed sabkha, Qatar): Roles of bacteria, extracellular polymeric substances and viruses

E Perri, ME Tucker, M Słowakiewicz, F Whitaker… - …, 2018 - Wiley Online Library
In a modern peritidal microbial mat from Qatar, both biomediated carbonates and Mg‐rich
clay minerals (palygorskite) were identified. The mat, ca 5 cm thick, shows a clear lamination …

Experimental evidence for abiotic formation of low-temperature proto-dolomite facilitated by clay minerals

D Liu, Y Xu, D Papineau, N Yu, Q Fan, X Qiu… - … et Cosmochimica Acta, 2019 - Elsevier
The origin of sedimentary dolomite is a subject of long-standing enigma that still awaits
resolution. Previous studies have shown that room temperature synthesis of abiotic dolomite …

Genesis mechanism and Mg isotope difference between the Sinian and Cambrian dolomites in Tarim Basin

G Zhu, X Li, T Li, L Zhou, Y Wu, B Shen… - Science China Earth …, 2023 - Springer
Dolomite genesis is a century-old mystery in sedimentology. To reveal the mechanism of
dolomite genesis, two core problems need to be addressed. The first is the origin and …

Modern dolomite formation caused by seasonal cycling of oxygenic phototrophs and anoxygenic phototrophs in a hypersaline sabkha

ZA Diloreto, S Garg, TRR Bontognali, M Dittrich - Scientific reports, 2021 - nature.com
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 …

High salinity facilitates dolomite precipitation mediated by Haloferax volcanii DS52

X Qiu, H Wang, Y Yao, Y Duan - Earth and Planetary Science Letters, 2017 - Elsevier
Although most modern dolomites occur in hypersaline environments, the effects of elevated
salinity on the microbial mediation of dolomite precipitation have not been fully evaluated …

Variability of blue carbon storage in arid evaporitic environment of two coastal Sabkhas or mudflats

ZA Al Disi, K Naja, S Rajendran, H Elsayed… - Scientific Reports, 2023 - nature.com
Coastal Sabkhas are mudflats found in arid coastal regions that are located within the
supratidal zone when high rates of evaporation lead to high salinity. While evaporitic …

[HTML][HTML] Phanerozoic variation in dolomite abundance linked to oceanic anoxia

M Li, PB Wignall, X Dai, M Hu, H Song - Geology, 2021 - pubs.geoscienceworld.org
The abundance of dolomitic strata in the geological record contrasts with the general rarity of
locations where dolomite forms today, a discrepancy that has long posed a problem for their …

Calibration of the oxygen and clumped isotope thermometers for (proto-) dolomite based on synthetic and natural carbonates

IA Müller, JD Rodriguez-Blanco, JC Storck… - Chemical …, 2019 - Elsevier
Dolomite is a very common carbonate mineral in ancient sediments, but is rarely found in
modern environments. Because of the difficulties in precipitating dolomite in the laboratory at …