Careful evaluation of the local geochemical conditions in past marine settings can provide a window to the average redox state of the global ocean during episodes of extensive organic carbon deposition. These comparisons aid in identifying the interplay between climate and biotic feedbacks contributing to and resulting from these events. Well‐documented examples are known from the Mesozoic Era, which is characterized by episodes of widespread organic carbon deposition known as Oceanic Anoxic Events. This organic carbon burial typically leads to coeval positive carbon‐isotope excursions. Geochemical data are presented here for several palaeoredox proxies (Cr/Ti, V, Mo, Zn, Mn, Fe speciation, I/Ca and sulphur isotopes) from a section exposed at Furlo in the Marche–Umbrian Apennines of Italy that spans the Cenomanian–Turonian boundary. Here, Oceanic Anoxic Event 2 is represented by a
This content will become publicly available on May 1, 2024
- Award ID(s):
- 1657690
- NSF-PAR ID:
- 10492092
- Publisher / Repository:
- Elsevier
- Date Published:
- Journal Name:
- Geochimica et Cosmochimica Acta
- Volume:
- 348
- Issue:
- C
- ISSN:
- 0016-7037
- Page Range / eLocation ID:
- 239 to 257
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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