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Smrzka, Daniel; Zwicker, Jennifer; Klügel, Andreas; Monien, Patrick; Bach, Wolfgang; Bohrmann, Gerhard; Peckmann, Jörn (2016): Geochemistry of carbonate sample. PANGAEA, https://doi.org/10.1594/PANGAEA.868806, Supplement to: Smrzka, D et al. (2016): Establishing criteria to distinguish oil-seep from methane-seep carbonates. Geology, 44(8), 667-670, https://doi.org/10.1130/G38029.1

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Abstract:
Hydrocarbon seeps harbor copious chemosynthesis-dependent life, the traces of which are preserved in the fossil record within authigenic carbonates. These environments are mostly characterized by seepage of methane-rich fluids, yet numerous crude oil-dominated seeps have been discovered in recent years. Oil seepage has a profound influence on the local fauna, but recognizing such seeps in the rock record remains elusive. This study presents new geochemical data that will allow for a more confident identification of ancient oil-seep deposits. Geochemical data from modern and ancient seep limestones reveal that oil-dominated seep carbonates are enriched in rare earth elements and uranium compared to their methane-dominated counterparts. These trace element patterns have the potential to serve as a basis for an improved understanding of the adaptation of chemosynthetic life to oil seepage, and to better constrain the marine carbon cycle in the geologic past.
Related to:
Supplemental material: Establishing criteria to distinguish oil-seep from methane-seep carbonates
Further details:
Table DR4: Correlation coefficients between relevant trace elements in clear aragonite cement
Coverage:
Median Latitude: 31.988419 * Median Longitude: -27.998302 * South-bound Latitude: 24.580133 * West-bound Longitude: -123.320000 * North-bound Latitude: 47.150000 * East-bound Longitude: 63.994067
Date/Time Start: 2003-11-06T17:24:00 * Date/Time End: 2007-11-20T16:30:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets

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Datasets listed in this publication series

  1. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR1) Carbonate geochemistry of carbonate sample GeoB12324-2. https://doi.org/10.1594/PANGAEA.868797
  2. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR1) Carbonate geochemistry of carbonate sample GeoB12338-13. https://doi.org/10.1594/PANGAEA.868798
  3. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR2) Trace and rare earth element contents of clear aragonite cement of carbonate sample GeoB12353-11. https://doi.org/10.1594/PANGAEA.868802
  4. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR1) Carbonate geochemistry of carbonate sample Dzieduszyckia, Morocco. https://doi.org/10.1594/PANGAEA.868799
  5. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR2) Trace and rare earth element contents of clear aragonite cement of carbonate sample Dzieduszyckia, Morocco. https://doi.org/10.1594/PANGAEA.868803
  6. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR1) Carbonate geochemistry of carbonate sample SO174/2_157-2. https://doi.org/10.1594/PANGAEA.868800
  7. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR2) Trace and rare earth element contents of clear aragonite cement of carbonate sample SO174/2_157-2. https://doi.org/10.1594/PANGAEA.868804
  8. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR1) Carbonate geochemistry of carbonate sample SR4. https://doi.org/10.1594/PANGAEA.868801
  9. Smrzka, D; Zwicker, J; Klügel, A et al. (2016): (Table DR2) Trace and rare earth element contents of clear aragonite cement of carbonate sample SR4. https://doi.org/10.1594/PANGAEA.868805