Dinosaur eggshell isotope geochemistry as tools of palaeoenvironmental reconstruction for the upper Cretaceous from the Tremp Formation (Southern Pyrenees)

Riera, V.; Anadón, Pere; Oms, Oriol; Estrada, Rita; Maestro, Eudald

doi:10.1016/j.sedgeo.2013.06.001

Cited by 30 publications

(22 citation statements)

References 58 publications

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“…The sampled sections in Red Units include lutites of alluvial and flood plain deposits with frequent calcite nodules (samples of L = 6 in Table 1 (deposited at: http://www.minersoc.org/pages/e_journals/dep_mat_ cm.html)), palaeosoils (samples G45 and G46 of L = 6 in Table 1), sheet-floods and reworked lutites. Thus, in the sedimentary basin there is an important contribution by clay-minerals formation to climatic conditions, similar to those established for the above-mentioned source areas, known mainly through 18 O and 13 C isotopic data from soil carbonate nodules (López-Martínez et al, 1998;Schmizt & Pujalte, 2003;Domingo et al, 2007;Riera et al, 2013).…”

Section: Figsupporting

confidence: 67%

Weathering evolution in lutites of the K/Pg transition red beds of the Tremp Group (Tremp-Isona Basin, south Pyrenees)

et al. 2017

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The Tremp–Isona basin (south-central Pyrenees, Lleida, Spain) shows maximum development of the Tremp Group (early Maastrichtian to late Paleocene) covering a wide geological record across the Cretaceous–Paleogene (K/Pg) boundary in continental facies. The mineralogy and geochemistry of lutites were used to assess the evolution of weathering from the Maastrichtian to the Eocene, and particularly for the red beds of the Lower Red and Upper Red Units (pre- and post-K/Pg, respectively). Chemical weathering decreased initially in the Maastrichtian (Gray Unit to Lower Red Unit), increasing subsequently from the Paleocene (Upper Red Unit) to Eocene units. ANOVA analysis of mineralogical compositions and cluster hierarchical analysis have been useful tools to select convenient lutites for assessment of weathering evolution by the chemical alteration index and by broadening of the 001 X-ray diffraction line of illite after ethylene glycol solvation. The lesser chemical weathering found in the Upper Red Unit (Danian) is interpreted in the context of relative warming and aridification, in climates of contrasting seasons and pronounced dry seasons.

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Section: Figsupporting

confidence: 67%

Weathering evolution in lutites of the K/Pg transition red beds of the Tremp Group (Tremp-Isona Basin, south Pyrenees)

et al. 2017

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“…The δ 13 C isotopic composition of soil CO 2 and thus of pedogenic carbonates (PC) is controlled by local vegetation (C 3 or C 4 pl nts) Cerling, 1984). The e n δ 13 C value and standard deviation for biogenic carbonates (BC) are calculated from: Dettman et al, 1999;Prendergast et al, 2015;Pustovoytov et al, 2010;Regev et al, 2011;Riera et al, 2013;Stern et al, 1994. Note the different 13 C fractionation by rhizorespiration for C 3 and C 4 plants (Werth and Kuzyakov, 2010).…”

Section: Accepted M M a N U mentioning

confidence: 99%

Pedogenic carbonates: Forms and formation processes

Zamanian

Pustovoytov

Kuzyakov

2016

Earth-Science Reviews

409

234

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“…b Bojar, Csiki & Grigorescu, 2010 c Tandon et al, 1995;Tandon & Andrews, 2001;Prasad & Sahni, 2014. d Cojan, Renard & Emmanuel, 2003. e Riera et al, 2013.…”

Section: Resultsmentioning

confidence: 99%

Peer Review #2 of "What do giant titanosaur dinosaurs and modern Australasian megapodes have in common? (v0.2)"

Upchurch¹

2015

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Titanosauria is a globally distributed clade of sometimes extremely large Mesozoic herbivorous sauropod dinosaurs. On the basis of current evidence these giant dinosaurs seem to have reproduced in specific and localized nesting sites. However, no investigations have been performed to understand the possible ecological and geological biases that acted for the selection of these nesting sites worldwide. In this study, observations were performed on the best-known Cretaceous nesting sites around the world. Our observations strongly suggest their eggs were incubated with environmental sources of heat, in burial conditions. Taking into account the clutch composition and geometry, the nature and properties of the sediments, the eggshells' structures and conductance, it would appear that titanosaurs adopted nesting behaviors comparable to the modern Australasian megapodes, using burrow-nesting in diverse media and moundbuilding strategies.

show abstract

Dinosaur eggshell isotope geochemistry as tools of palaeoenvironmental reconstruction for the upper Cretaceous from the Tremp Formation (Southern Pyrenees)

Cited by 30 publications

References 58 publications

Weathering evolution in lutites of the K/Pg transition red beds of the Tremp Group (Tremp-Isona Basin, south Pyrenees)

Weathering evolution in lutites of the K/Pg transition red beds of the Tremp Group (Tremp-Isona Basin, south Pyrenees)

Pedogenic carbonates: Forms and formation processes

Peer Review #2 of "What do giant titanosaur dinosaurs and modern Australasian megapodes have in common? (v0.2)"

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