Aptian-Albian paleoenvironmental geochemistry: Araripe Basin, Northeastern Brazil

IHR Azevedo, LD Lacerda, AÁF Saraiva, AN Sial… - Journal of South …, 2024 - Elsevier
The geochemical record of the early Aptian and the transition to the Albian exposes the
presence of Hg/TOC anomalies, revealing the interference of LIPs in paleoenvironmental …

Organic and isotopic geochemistry of evaporites and shales of the Santana Group (Araripe Basin, Brazil): clues on the evolution of depositional systems and global …

NV Pontes, DB das Chagas, ACB de Souza… - Minerals, 2021 - mdpi.com
Even being the more studied of the interior basins of Northeast Brazil, the Araripe Basin still
lacks research in organic geochemistry designed to support interpretations of depositional …

Paleohydrology of an Upper Aptian lacustrine system from northeastern Brazil: integration of facies and isotopic geochemistry

JDS Paz, DF Rossetti - Palaeogeography, Palaeoclimatology …, 2006 - Elsevier
The Codó Formation records the initial evolutionary stages of an intracontinental rift system
formed along the Brazilian equatorial margin in the late Aptian. Deposits of this unit exposed …

Late Barremian/early Aptian Re–Os age of the Ipubi Formation black shales: Stratigraphic and paleoenvironmental implications for Araripe Basin, northeastern Brazil

T Lúcio, JAS Neto, D Selby - Journal of South American Earth Sciences, 2020 - Elsevier
Abstract The Ipubi Formation of the Santana Group, Araripe Basin, Brazil, is characterized by
black shales and overlying evaporite deposits and is suggested to record the transition from …

Analysis of a Cretaceous (late Aptian) high-stress ecosystem: The Romualdo Formation of the Araripe Basin, northeastern Brazil

FT Fürsich, MA Custódio, SA Matos, M Hethke… - Cretaceous …, 2019 - Elsevier
Abstract The Cretaceous (upper Aptian) Romualdo Formation of the Araripe Basin,
northeastern Brazil, is a marine-influenced, predominantly fine-grained siliciclastic unit. In …

Paleoenvironmental evolution of the Aptian Romualdo Formation, Araripe Basin, Northeastern Brazil

MHH Bom, D Ceolin, KGD Kochhann, G Krahl… - Global and Planetary …, 2021 - Elsevier
The tectonic evolution of the Equatorial Atlantic Gateway (EAG) throughout the early
Cretaceous had global implications. This break-up of western Gondwana has played a …

Expression of Early Cretaceous global anoxic events in Northeastern Brazilian basins

LPH Bastos, E Pereira, D da Costa Cavalcante… - Cretaceous …, 2020 - Elsevier
In different basins around the world, organic-rich layers from the Cretaceous are being
associated with perturbations in the global carbon cycle that reflect abrupt climatic and …

Upper Aptian–lower Albian of the southern-central Araripe Basin, Brazil: Microbiostratigraphic and paleoecological inferences

RC Araripe, FAP Lemos, LAC do Prado… - Journal of South …, 2022 - Elsevier
The aim of this study was to produce an integrative analysis of macroinvertebrates
(decapods, gastropods, and bivalves) and microfossils collected in the Romualdo …

Depositional environments of the organic matter of Aptian-Albian sediments from the Araripe basin (NE Brazil); Environnements de depot de la matiere organique des …

F Baudin, PY Berthou - Bulletin des Centres de Recherches, Exploration …, 1996 - osti.gov
The geochemical study of Aptian and Albian sediments from the Araripe Basin allows the
recognition of three organic-rich intervals. The older corresponds to black argilites from the …

Mercury chemostratigraphy as a proxy of volcanic-driven environmental changes in the Aptian-Albian transition, Araripe Basin, northeastern Brazil

APA Benigno, AÁF Saraiva, AN Sial… - Journal of South American …, 2021 - Elsevier
The stratigraphy of mercury (Hg) in sections of the Araripe Basin straddling the Aptian-Albian
transition, encompassing the Romualdo, Ipubi, Crato and Barbalha (formerly Rio da …