2019
DOI: 10.1016/j.palaeo.2019.05.029
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The expression of the Oceanic Anoxic Event 2 (OAE2) in the northeast of Brazil (Sergipe-Alagoas Basin)

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Cited by 17 publications
(3 citation statements)
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“…The absence of the MCE and Late Cenomanian-Turonian CIE could be explained due to (i) a preservation issue, (ii) masking of the CIE due to changes on OM composition, or (iii) erosion/non-deposition. The pronounced CIE associated with the OAE2 has been recorded previously in various types of continent-derived substrates including fossil wood, terrestrial particulate OM and plant wax-derived n-alkanes [28,29,31,96,98]. This clearly illustrated that the carbon cycle perturbation associated with the Late Cenomanian-Turonian event did affect the entire ocean-atmosphere system, including the δ 13 C composition of atmospheric carbon species.…”
Section: The Mata Amarilla Formation As Environmental Archivesupporting
confidence: 70%
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“…The absence of the MCE and Late Cenomanian-Turonian CIE could be explained due to (i) a preservation issue, (ii) masking of the CIE due to changes on OM composition, or (iii) erosion/non-deposition. The pronounced CIE associated with the OAE2 has been recorded previously in various types of continent-derived substrates including fossil wood, terrestrial particulate OM and plant wax-derived n-alkanes [28,29,31,96,98]. This clearly illustrated that the carbon cycle perturbation associated with the Late Cenomanian-Turonian event did affect the entire ocean-atmosphere system, including the δ 13 C composition of atmospheric carbon species.…”
Section: The Mata Amarilla Formation As Environmental Archivesupporting
confidence: 70%
“…For the same interval, the δ 13 C org records showed a slightly different stratigraphic pattern, characterized by a stable or gradual trend toward more negative δ 13 C org values [34,36]. A significant and abrupt increase of carbon isotopes values (~2-3‰) was the main characteristic feature of the OAE2 (e.g., [31,33,34,36,38,88,89,92,96,97] among others) and could be correlated in stratigraphic sections distributed worldwide (Figure 5). Comparisons of the δ 13 C org curve from southern Patagonia with high-resolution curves from North America, the equatorial Atlantic, Europe and Asia revealed the absence of the characteristic positive MCE and Late Cenomanian-Turonian CIE in the studied MAF (Figure 5).…”
Section: The Mata Amarilla Formation As Environmental Archivementioning
confidence: 96%
“…In turn, our point "C" corresponds to the point "III" from the Bahlul section (Figure 4; see also figure 11 in [44]). Both marker points are also characteristic of other OAE2 sections, e.g., from the Umbria-Marche Platform [45], Vocontian Basin [46], European epicontinental sea (e.g., [47]), Demerara Rise in the Central Atlantic [48], continental margin of the South West Atlantic [49] and Western Interior Basin (e.g., [50,51]). The last marker point used in our correlation (point "E") is important for determining the termination of black shale accumulation in relation to the C-T boundary.…”
Section: Discussionmentioning
confidence: 97%