Ancient Hydrocarbon Seeps of the World

Hryniewicz, Krzysztof

doi:10.1007/978-3-031-05623-9_20

Cited by 4 publications

(2 citation statements)

References 263 publications

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“…Abundant fossil seep ecosystems have been recognized in the rock record (e.g., Campbell, 2006; Hryniewicz, 2022; Peckmann & Thiel, 2004). The dominant taxa have changed in the course of geological history, recording short‐lived periods of brachiopod and bivalve dominance but also brachiopod and bivalve coexistence for much of the Phanerozoic, whereas only bivalves dominated seep ecosystems from the later Early Cretaceous onward (Kiel & Peckmann, 2019).…”

Section: Discussionmentioning

confidence: 99%

Trace and Rare Earth Element Fingerprints of Aerobic Oxidation of Methane in Seep‐Dwelling Bivalves

Sun,

Di,

Peckmann

et al. 2024

JGR Oceans

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Aerobic methanotrophic bacteria are pivotal in the global carbon cycle by converting methane into biomass and inorganic carbon species. Light rare earth elements (light‐REE; La, Ce) are part of the metalloenzymes mediating the biochemical processes in methanotrophs. However, the partitioning of trace metals and REE in chemosymbiotic megafauna with methanotrophic endosymbionts remains largely unknown. Here we determine stable isotope compositions (δ13C, δ15N) of soft tissues (gill, mantle, foot) as well as trace metal and REE contents of soft tissues and shells of chemosymbiotic bivalves dwelling at methane seeps (Site F and Haima seeps) of the South China Sea. Isotopic compositions of soft tissues are found to reflect the mode of chemosymbiosis (i.e., methanotrophy vs. thiotrophy). Particularly gill tissues of bivalves with methanotrophic endosymbionts display marked light‐REE and trace metal enrichments, which is interpreted to reflect the enzymatic activity of endosymbionts. Additionally, correlations between light‐REE and copper (Cu), zinc (Zn), and molybdenum (Mo) contents in soft tissues of chemosymbiotic mussels are ascribed to the uptake of these elements by the methanotrophic symbionts. An observed higher trace metal content in the tissue of the semi‐infaunal and infaunal bivalves with thiotrophic endosymbionts is believed to reflect the uptake of metals associated with sulfide particles. This study documents diagnostic enrichment of trace metals and light‐REE in the soft tissues of bivalves with chemotrophic endosymbionts and provides new constraints for future identification of chemosymbiosis at ancient seeps.

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Section: Discussionmentioning

confidence: 99%

Trace and Rare Earth Element Fingerprints of Aerobic Oxidation of Methane in Seep‐Dwelling Bivalves

Sun,

Di,

Peckmann

et al. 2024

JGR Oceans

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“…In western Washington State, numerous ancient hydrocarbon-seep sites have been described and range in age from the middle Eocene c. 42.5 to 40.5 Ma to the Mio-Pliocene c. 5 Ma (e.g. Goedert & Squires, 1990Campbell, 1992;Peckmann et al 2002Peckmann et al , 2003Peckmann et al , 2007Goedert et al 2003;Goedert & Peckmann, 2005;Kiel, 2006Kiel, , 2010Amano & Kiel, 2007;Nesbitt et al 2013;Hybertsen & Kiel, 2018;Hryniewicz, 2022b). Most of the ancient hydrocarbon-seep sites occur within sediments overlying an early Eocene basalt basement, the so-called Coast Range Terrane (Snavely & Wells, 1996;Fig.…”

Section: A Geological Settingmentioning

confidence: 99%

Mass occurrence of echinoids in an Oligocene hydrocarbon-seep limestone from the Olympic Peninsula, Washington State, USA

et al. 2023

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Loose limestone blocks of a newly recognized hydrocarbon-seep deposit from the lower Oligocene Jansen Creek Member of the Makah Formation were collected on a beach terrace close to the mouth of Bullman Creek in Washington State, USA. The limestone consists largely of authigenic carbonate phases, including 13C-depleted fibrous cement forming banded and botryoidal crystal aggregates with δ13C values as low as –23.5 ‰. Lipids extracted from the limestone yielded molecular fossils of anaerobic methanotrophic archaea (ANME), dominated by compounds of an ANME-2/DSS consortium with δ13C values as low as −106 ‰, indicating formation at an ancient methane seep. The fossil inventory of the seep deposit is remarkable, consisting almost solely of echinoid remains, whereas typical seep biota are absent. Varying preservation of the echinoid fossils indicates parautochthonous deposition, corroborated by evidence for high fluid flow at the ancient seep, possibly responsible for displacement of echinoids after death. Although a full taxonomic description of the echinoids cannot be given, almost all fossils were assigned to one taxon of irregular spatangoids, except for a single regular echinoid. Abundance and lifestyle of the irregular spatangoids in the Bullman Creek echinoid seep deposit resemble those of the fossil Tithonia oxfordiana from an upper Jurassic seep deposit in France and extant Sarsiaster griegii from modern seeps in the Gulf of Mexico. The Bullman Creek echinoid deposit probably represents a fossil analogue of the Gulf of Mexico Sarsiaster mass occurrence, indicating that the adaptation of spatangoid echinoids to chemosynthesis-based ecosystems ranges back at least to the earliest Oligocene.

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A new chemosynthetic community (ostracods, foraminifers, echinoderms) from Late Jurassic hydrocarbon seeps, south-eastern France Basin

Forel,

Charbonnier,

Gale

et al. 2024

Geobios

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Ancient Hydrocarbon Seeps of the World

Cited by 4 publications

References 263 publications

Trace and Rare Earth Element Fingerprints of Aerobic Oxidation of Methane in Seep‐Dwelling Bivalves

Trace and Rare Earth Element Fingerprints of Aerobic Oxidation of Methane in Seep‐Dwelling Bivalves

Mass occurrence of echinoids in an Oligocene hydrocarbon-seep limestone from the Olympic Peninsula, Washington State, USA

A new chemosynthetic community (ostracods, foraminifers, echinoderms) from Late Jurassic hydrocarbon seeps, south-eastern France Basin

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