Skip to main content
Swiss Journal of Palaeontology
Fig. 3 | Swiss Journal of Palaeontology

Fig. 3

From: Geochemical evidence (C and Sr isotopes) for methane seeps as ammonite habitats in the Late Cretaceous (Campanian) Western Interior Seaway

Fig. 3

Seep-associated carbonates. a Portion of large pipe ~30 cm long x ~10 cm diameter; composition is Mg-rich calcite with apatite and pyrite (AMNH 64594, loc. 3545); b angular concretion (AMNH 80770, loc. 3419); c massive, billowy concretion (AMNH 645611, loc. 3528); d platy carbonate (top view)  with included shells of inoceramids and lucinids (AMNH loc. 3529)

Back to article page