A Middle–Late Triassic (Ladinian–Rhaetian) carbon and oxygen isotope record from the Tethyan Ocean

Muttoni, Giovanni; Mazza, Michele; Mosher, David; Katz, Miriam; Kent, Dennis V.; Balini, Marco

doi:10.1016/j.palaeo.2014.01.018

Cited by 78 publications

(49 citation statements)

References 34 publications

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“…Assuming a CarnianNorian boundary age of ca. 227 Ma (Muttoni et al, 2004(Muttoni et al, , 2014, and references therein), our study shows that the Norian is ~21.3 m.y. long.…”

Section: Discussionsupporting

confidence: 56%

“…6) that is substantially equivalent to the correlation originally proposed by Hüsing et al (2011). The correlation of the largely younger Brumano-Italcementi Quarry sections to the Newark APTS is the same of Muttoni et al (2010Muttoni et al ( , 2014, pending a formal redefinition of the Misikella specimens at Brumano (see also earlier discussion).…”

Section: Correlation With the Newark Aptssupporting

confidence: 58%

“…Moreover, data from Pignola-Abriola have been compared with the magnetobiostratigraphy of the Brumano and Italcementi Quarry sections (Lombardian Basin, southern Alps, Italy), which encompasses a portion of the Rhaetian (with specimens attributed to Misikella) up to the Triassic-Jurassic boundary as defi ned by pollens (Muttoni et al, 2010(Muttoni et al, , 2014. Awaiting for a formal redefi nition of the Misikella specimens in the Brumano section following the new defi nition of Misikella posthern steini sensu stricto adopted in this study (after Giordano et al, 2010), we stress that all Misikella specimens at Brumano occur below the recovered magnetostratigraphy (Muttoni et al, 2010(Muttoni et al, , 2014, and thus the sequence of Brumano-Italcementi Quarry magnetozones from BIT1n to BIT5n is regarded as largely younger than the Pignola-Abriola magnetostratigraphy (Fig. 6).…”

Section: Correlations With Tethyan Sections From the Literaturementioning

confidence: 99%

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Magnetostratigraphy, biostratigraphy, and chemostratigraphy of the Pignola-Abriola section: New constraints for the Norian-Rhaetian boundary

Maron

Rigo

Bertinelli

et al. 2015

Geological Society of America Bulletin

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A detailed magnetostratigraphic investiga-\ud tion of the Pignola-Abriola section of Norian\ud to Rhaetian age permits the identification of\ud 22 magnetic polarity reversals grouped in 10\ud magnetozones. We correlate the magneto-\ud stratigraphy of the Pignola-Abriola section\ud with the Newark astrochronological polarity\ud time scale (APTS). In total, 19 correlation\ud options were tested, and only one (option 7)\ud yielded a statistically significant correlation\ud that was consistent with the available infor-\ud mation on the stratigraphic age of the Newark\ud APTS. After some adjustments to minimize\ud erratic variations in sediment accumulation\ud rates, a final correlation (option 7.1) was used\ud to generate an age model of sedimentation\ud for the Pignola-Abriola section. The Pignola-\ud Abriola section has been correlated with\ud Rhaetian sections from the literature, notably\ud the current global boundary stratotype sec-\ud tion and point candidate for the base of the\ud Rhaetian at Steinbergkogel, Austria, where\ud the Norian-Rhaetian boundary is proposed\ud to be placed at a stratigraphic level contain-\ud ing the first appearance datum (FAD) of\ud conodont Misikella posthernsteini, traced on\ud the Newark APTS to ca. 209–210 Ma. Issues\ud regarding the taxonomy of M. posthernsteini,\ud a species characterized by transitional forms\ud with its ancestor Misikella hernsteini, lead us\ud to propose the alternative option of placing the\ud Norian-Rhaetian boundary at a prominent\ud negative δ13C spike observed in the Pignola- org\ud Abriola section at meter 44.5, 50 cm below the level containing the FAD of M. posthernsteini sensu stricto and close to the base of radiolarian Proparvicingula moniliformis zone. This level has been magnetostratigraphically cor- related to Newark magnetozone E20r.2r at ca. 205.7 Ma. Assuming an age of ca. 201.3 Ma for the Triassic-Jurassic boundary, the Rhaetian Stage would have a duration of ~4.4 m.y

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“…Assuming a CarnianNorian boundary age of ca. 227 Ma (Muttoni et al, 2004(Muttoni et al, , 2014, and references therein), our study shows that the Norian is ~21.3 m.y. long.…”

Section: Discussionsupporting

confidence: 56%

Section: Correlation With the Newark Aptssupporting

confidence: 58%

Section: Correlations With Tethyan Sections From the Literaturementioning

confidence: 99%

See 1 more Smart Citation

Magnetostratigraphy, biostratigraphy, and chemostratigraphy of the Pignola-Abriola section: New constraints for the Norian-Rhaetian boundary

Maron

Rigo

Bertinelli

et al. 2015

Geological Society of America Bulletin

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“…Carbon-isotope stratigraphy using bulk-carbonate analyses and some shell material through the Ladinian-Carnian-Norian indicate that broad background trends are broken by either one or two brief Mid-Carnian negative isotope spikes with magnitude of about -2% to -3% (Korte et al, 2005;Muttoni et al, 2014). A slight negative excursion of -1% is also reported from bulk rock analyses from the lowermost Xiaowa (Wayao) Formation of Guzhou, China (Xia et al, 2013).…”

Section: Carbon-12 Enriched Atmosphere and A Carbonate Crisis In Oceansmentioning

confidence: 93%

The mysterious Mid-Carnian “Wet Intermezzo” global event

Ogg

2015

J. Earth Sci.

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Approximately 230 million years ago in the middle of the Carnian stage of the Upper Triassic, the sedimentary records in different regional basins display dramatic changes. Tropical carbonate platforms abruptly ended, and engorged river systems left widespread sand-rich layers across inland basins and coastal regions. This pulse lasted less than a million years in some basins, but constituted a permanent shift in others. Following this event, the Late Carnian has the earliest record of significant dinosaurs on land and the emergence of the calcareous nannoplankton in the oceans that now govern Earth's carbon cycle. This "most distinctive climate change within the Triassic" has been interpreted by some geoscientists as a global disruption of the Earth's land-ocean-biological system. The eruption of the Wrangellia large igneous province may have been the trigger for a sudden carbon-dioxide-induced warming and associated increased rainfall in some of these regions. Indeed, some workers have proposed that this "wet intermezzo" warming event is a useful analog to aid in predicting the effects of our future greenhouse on land ecosystems and ocean chemistry. However, the understanding of the onset, duration, global impacts and relatively rapid termination of this postulated warming pulse has been hindered by lack of a global dataset with inter-calibrated terrestrial and marine biostratigraphy, precise radio-isotopic ages, stable isotope records of temperature and the carbon system, and cycle-calibrated rates of regional and global change.

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“…Late Triassic Tethyan marine carbonates do not provide much insight into temperature or humidity conditions, but they are useful for documenting the marine carbon isotope record. Two Late Triassic composite marine sections both document a negative carbon isotope excursion at ca 216 Ma (Korte et al ., ; Muttoni et al ., ). The cause of this isotope excursion is unknown although it generally coincides with the timing of the Manicouagan impact.…”

Section: Discussionmentioning

confidence: 99%

Eogenetic diagenesis of Chinle sandstones, Petrified Forest National Park (Arizona, USA): A record of Late Triassic climate change

et al. 2017

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Fluvially derived tuffaceous Chinle sandstones from Petrified Forest National Park provide a well‐preserved Late Triassic archive of climate information. Petrographic analysis of 38 Chinle sandstones provides new insight into the depositional history and evolution of palaeoclimate during Chinle deposition. This study focuses on the relationship between climate and meteoric diagenesis as a guide for constraining climate change in western equatorial Pangea during the Late Triassic. Petrographic analysis of Chinle sandstones reveals their wide range of textural attributes, as well as pedogenic and shallow burial diagenetic features that occurred during the Late Triassic. These diverse petrological characteristics are indicative of the evolving Late Triassic climate, when placed into a well‐constrained stratigraphic and geochronological framework. The stratigraphic succession is characterized by variations in the abundance of framework grains, detrital matrix, weathering intensity of feldspar and volcanic rock fragments, and the mineralogy of clay cements. Climate records from Chinle palaeosol geochemistry indicate a progression from wet to dry conditions. This trend is also reflected in the meteoric diagenetic features of Chinle sandstones. During deposition of the lower Chinle, elevated rainfall promoted the weathering of labile volcanic detritus to kaolinite, whereas feldspars (especially plagioclase) were partially or completely dissolved. In the upper Chinle, a trend towards drier conditions favoured the formation of smectite and less feldspar dissolution resulting in a higher abundance of well‐preserved plagioclase grains. Shallow burial meteoric weathering reactions in Chinle sandstones reflect the evolving climate during the Late Triassic.

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A Middle–Late Triassic (Ladinian–Rhaetian) carbon and oxygen isotope record from the Tethyan Ocean

Cited by 78 publications

References 34 publications

Magnetostratigraphy, biostratigraphy, and chemostratigraphy of the Pignola-Abriola section: New constraints for the Norian-Rhaetian boundary

Magnetostratigraphy, biostratigraphy, and chemostratigraphy of the Pignola-Abriola section: New constraints for the Norian-Rhaetian boundary

The mysterious Mid-Carnian “Wet Intermezzo” global event

Eogenetic diagenesis of Chinle sandstones, Petrified Forest National Park (Arizona, USA): A record of Late Triassic climate change

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