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February 12, 2026Sedimentology

Carbonate spherulites in a Lower Cretaceous hydrocarbon seep (Outer Carpathians, Poland)

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Authors

SGStefano GiuntiFTFabian TrammBKBarbara Kremer

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Overview

Research uncovers carbonate spherulites' formation in a hydrocarbon seep, illuminating geological processes.

Key Points

  • This research aims to understand the origin and characteristics of carbonate spherulites in a Lower Cretaceous hydrocarbon seep.
  • Investigated mineralogy, petrography, and geochemistry of spherulites
  • Characterized spherulites' morphology and crystal arrangement
  • Analyzed carbon isotopes to deduce origins of carbonate precipitation
  • Spherulites showed radial internal structure and measured from sub-millimetric to 10 mm in diameter
  • Origin linked to anaerobic oxidation of methane, indicated by 13C-depleted values
  • Preserved original peloidal texture and formations suggested both microbial and abiotic processes contributed to their growth

Cite This Study

Giunti et al. (2026) studied this question.

synapsesocial.com/papers/698d6e925be6419ac0d5467chttps://doi.org/10.1111/sed.70088
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