Facies and diagenesis distribution in an Aptian pre-salt carbonate reservoir of the Santos Basin, offshore Brazil: a comprehensive quantitative approach

AMA Carvalho, Y Hamon, OG De Souza Jr… - Marine and Petroleum …, 2022 - Elsevier
Aptian carbonate rocks of Santos Basin in the Brazilian southeastern continental margin
show a highly heterogeneous reservoir quality conditioned by many controlling factors. This …

Model for calcite spherulite formation in organic, clay-rich, lacustrine carbonate shales (Barbalha Formation, Aptian, Araripe Basin, NE Brazil)

H Claes, T Miranda, TC Falcão, J Soete… - Marine and Petroleum …, 2021 - Elsevier
The formation of carbonate spherulites, recognized as part of the South-Atlantic Pre-Salt
reservoir rocks, remains enigmatic. Well-chosen analogues provide insights into …

Depositional controls in an ancient, closed lake system: A high-resolution and multi-scalar case study from the Yacoraite Formation (Salta Basin, Argentina)

M Vallati, S Tomás, C Galli, G Winterleitner, M Mutti - Sedimentary Geology, 2023 - Elsevier
Abstract The Yacoraite Formation (Cretaceous–Paleogene) is a mixed carbonate–
siliciclastic microbialite-bearing lacustrine succession deposited in the intra-continental …

Early diagenetic evolution based on petrography and stable isotope analysis in the Barra Velha Formation of the Brazilian Pre‐salt

JPB Gomes, RB Bunevich, ACL Sartorato… - The Depositional …, 2024 - Wiley Online Library
Mineralogy and texture of diagenetic phases in the Aptian Pre‐Salt Barra Velha Formation
are described, quantified and compared by facies and structural setting to understand their …

A comprehensive methodology for monitoring evaporitic mineral precipitation and hydrochemical evolution of saline lakes: the case of Lake Magadi soda brine (East …

M Getenet, JM García-Ruiz, F Otálora… - Crystal Growth & …, 2022 - ACS Publications
Lake Magadi, East African Rift Valley, is a hyperalkaline and saline soda lake highly
enriched in Na+, K+, CO32–, Cl–, HCO3–, and SiO2 and depleted in Ca2+ and Mg2+ …

Paleoenvironmental implications of authigenic magnesian clay formation sequences in the Barra Velha Formation (Santos Basin, Brazil)

PRA Netto, M Pozo, MD da Silva, MEB Gomes… - Minerals, 2022 - mdpi.com
The characterization of Mg-clays in rock samples (well P1) from the Barra Velha Formation
(Early Cretaceous) allowed the establishment of mineral assemblages on the basis of their …

Tailoring CaCO3 microstructure to improve trace phosphate removal from water

A Acevedo-Macias, JR Rangel-Mendez… - Journal of Water …, 2023 - Elsevier
The phosphorus raw material is in crisis, and the demand for P-fertilizer production is
increasing, therefore different sources are sought. The trace concentration of phosphorus in …

Towards a morphology diagram for terrestrial carbonates: Evaluating the impact of carbonate supersaturation and alginic acid in calcite precipitate morphology

R Mercedes-Martín, M Rogerson, TJ Prior… - … et Cosmochimica Acta, 2021 - Elsevier
Ancient and recent terrestrial carbonate-precipitating systems are characterised by a
heterogeneous array of deposits volumetrically dominated by calcite. In these environments …

[HTML][HTML] The role of phosphate on non-skeletal carbonate production in a Cretaceous alkaline lake

R Pietzsch, NJ Tosca, JP Gomes, S Roest-Ellis… - … et Cosmochimica Acta, 2022 - Elsevier
Alkaline carbonate-rich systems may, under some circumstances, result in significant
accumulation of aqueous phosphorus. Additionally, the geochemistry of modern alkaline …

Coeval primary and diagenetic carbonates in lacustrine sediments challenge palaeoclimate interpretations

J McCormack, O Kwiecien - Scientific Reports, 2021 - nature.com
Lakes are sensitive to climate change and their sediments play a pivotal role as
environmental recorders. The oxygen and carbon isotope composition (δ18O and δ13C) of …