Barite-bearing “septarian concretions” (upper Cretaceous – Paleocene) from the Biban area (north Algeria)

Gaci, Nabila; Sami, Lounis; Boutaleb, Abdelhak; Kechiched, Rabah; Martire, Luca; Barale, Luca; Meddane, Sofiane; Bakelli, Aboulyakdane

doi:10.1016/j.jafrearsci.2024.105280

Journal of African Earth Sciences

2024

DOI: 10.1016/j.jafrearsci.2024.105280

|View full text |Cite

Barite-bearing “septarian concretions” (upper Cretaceous – Paleocene) from the Biban area (north Algeria)

Nabila Gaci,

Lounis Sami,

Abdelhak Boutaleb

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Barite septarian concretions in the Albian (Cretaceous) of the Subbetic (Southern Spain)

Molina,

Reolid

2024

J Iber Geol

View full text Add to dashboard Cite

This works analyses the Albian barite septarian concretions of the Fardes Formation located in the Geopark of Granada within the Subbetic (Betic Cordillera, SE Spain) from a stratigraphic, textural, mineralogical and geochemical point of view. The early diagenetic conditions that favoured the development of the concretions and their septaria are interpreted, taking into account the importance of the organic-rich clay facies (black shales) in which they are found as well as the interruptions in the sedimentation rate. The barite concretions formed in different stages: (1) Sedimentation of black shales containing Ba of organic origin and deposited in low oxygen environments; (2) diffusion of seawater interstitial solutions containing Ba2+ mainly from organic matter and sulfate originating from the decomposition of organic matter by bacterial reduction; (3) crystallization of barite on nucleation sites and rapid growth of concretion at the water–sediment interface when the depth of the barite front stabilized at a few meters depth due to a very low or no sedimentation rate; (4) rapid growth of the concretions and sediment load favoured the formation of septarian cracks that were filled first with Sr-rich barite crystals and finally by calcite. The association of barite concretions and stratigraphic discontinuities can be very useful for the recognition of depositional hiatuses in thick monotonous clayey or marly sequences.

show abstract

Barite septarian concretions in the Albian (Cretaceous) of the Subbetic (Southern Spain)

Molina,

Reolid

2024

J Iber Geol

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Barite-bearing “septarian concretions” (upper Cretaceous – Paleocene) from the Biban area (north Algeria)

Cited by 1 publication

References 78 publications

Barite septarian concretions in the Albian (Cretaceous) of the Subbetic (Southern Spain)

Barite septarian concretions in the Albian (Cretaceous) of the Subbetic (Southern Spain)

Contact Info

Product

Resources

About