The eruptive tempo of Deccan volcanism in relation to the Cretaceous-Paleogene boundary

Sprain, Courtney J.; Renne, Paul R.; Vanderkluysen, L.; Pande, Kanchan; Self, Stephen; Mittal, Tushar

doi:10.1126/science.aav1446

Cited by 309 publications

(310 citation statements)

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“…The younger Late Cretaceous magmatic event (70-65 Ma; Kent et al, 2002; present work) of eastern and northeastern India was likely connected to the Réunion plume and the associated Deccan large igneous province of western India (Kent et al, 2002;Paul, 2005;Srivastava et al, 2014). While it is well established that the bulk (>90%) of Deccan volcanism occurred at 65 (±1) Ma, close to the Cretaceous-Tertiary boundary (Duncan and Pyle, 1988;Baksi, 1994;Allègre et al, 1999;Hofmann et al, 2000;Chenet et al, 2007;Schoene et al, 2015Schoene et al, , 2019Sprain et al, 2019), more limited Deccan volcanism occurred before and after the main event between 69 and 62 Ma (Widdowson et al, 2000;Pande, 2002;Hooper et al, 2010;. Volcanic rocks that are thought to be associated with the Réunion plume have also been identified far from the main Deccan large igneous province in western India.…”

Section: Researchmentioning

confidence: 51%

Nature of Cretaceous dolerite dikes with two distinct trends in the Damodar Valley, eastern India: Constraints on their linkage to mantle plumes and large igneous provinces from 40Ar/39Ar geochronology and geochemistry

et al. 2019

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Two distinct sets of Cretaceous dolerite dikes intrude the Chhotanagpur gneissic complex of eastern India, mostly within the Damodar Valley Gondwanan sedimentary basins. One dike set trends NNE to ENE, whereas the other set, which includes the prominent Salma dike, trends NW to NNW. One dike from each set in the Raniganj Basin was dated using the 40Ar/39Ar method in order to resolve a controversy concerning the emplacement age of the Salma dike. The NE-trending dike yielded a plateau age of 70.5 ± 0.9 Ma, whereas the NNW-trending Salma dike is much older, with a plateau age of 116.0 ± 1.4 Ma. These results demonstrate that the Salma dike was emplaced at ca. 116 Ma and not at ca. 65 Ma, as suggested in an earlier study. Geochemical characteristics of the two dikes are also distinct and indicate that they belong to previously identified high-Ti and low-Ti dolerite groups, respectively. The observed geochemical characteristics of both dike sets are comparable with the geochemistry of basalts of the Kerguelen Plateau, Bunbury Island, and Rajmahal Group I and suggest a connection to mantle plumes. The new age data presented herein indicate that these two magmatic episodes in the eastern Indian Shield were related to the ca. 120–100 Ma Kerguelen mantle plume and its associated Greater Kerguelen large igneous province and the ca. 70–65 Ma Réunion plume and its associated Deccan large igneous province, respectively.

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Section: Researchmentioning

confidence: 51%

Nature of Cretaceous dolerite dikes with two distinct trends in the Damodar Valley, eastern India: Constraints on their linkage to mantle plumes and large igneous provinces from 40Ar/39Ar geochronology and geochemistry

et al. 2019

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“…Establishing a link between Deccan volcanism and CO 2 change at the K-Pg boundary is difficult because (1) age uncertainties of the lava flows are on the order of 10 4 -10 5 years (e.g., Renne et al, 2015;Schoene et al, 2015Schoene et al, , 2019Sprain et al, 2019); and (2) constraining the amount and rate of CO 2 release is challenging (Jay & Figure 3. Atmospheric CO 2 estimates from the Cretaceous-Paleogene boundary.…”

Section: K-pg Boundary Comentioning

confidence: 99%

“…Geophysical Research Letters Widdowson, 2008;Self et al, 2006). Deccan volcanism clearly brackets the K-Pg boundary, but whether there was a pulse of activity within 10 2 -10 3 years of the boundary is unresolved (Schoene et al, 2019;Sprain et al, 2019). Using existing constraints on the magnitude and pacing of CO 2 release for the Deccan, Tobin et al (2017) demonstrate that it is possible, in principle, to raise CO 2 concentrations by several hundred parts per million.…”

Section: 1029/2018gl081215mentioning

confidence: 99%

No Evidence for a Large Atmospheric CO₂ Spike Across the Cretaceous‐Paleogene Boundary

Milligan

Royer

Franks

et al. 2019

Geophysical Research Letters

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Currently, there is only one paleo‐CO2 record from plant macrofossils that has sufficient stratigraphic resolution to potentially capture a transient spike related to rapid carbon release at the Cretaceous‐Paleogene (K‐Pg) boundary. Unfortunately, the associated measurements of stomatal index are off‐calibration, leading to a qualitative interpretation of >2,300‐ppm CO2. Here we reevaluate this record with a paleo‐CO2 proxy based on leaf gas exchange principles. We also test the proxy with three living species grown at 500‐ and 1,000‐ppm CO2, including the nearest living relative of the K‐Pg fern, and find a mean error rate of ~22%, which is comparable to other leading paleo‐CO2 proxies. Our fossils record a ~250‐ppm increase in CO2 across the K‐Pg boundary from ~625 to ~875 ppm. A small CO2 spike associated with the end‐Cretaceous mass extinction is consistent with many temperature records and with carbon cycle modeling of Deccan volcanism and the meteorite impact.

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“…; Sprain et al . ). However, the degree to which this is the case is still vigorously debated (Courtillot & Fluteau ; Keller et al .…”

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confidence: 97%

Nature and timing of biotic recovery in Antarctic benthic marine ecosystems following the Cretaceous–Palaeogene mass extinction

et al. 2019

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Taxonomic and ecological recovery from the Cretaceous–Palaeogene (K–Pg) mass extinction 66 million years ago shaped the composition and structure of modern ecosystems. The timing and nature of recovery has been linked to many factors including palaeolatitude, geographical range, the ecology of survivors, incumbency and palaeoenvironmental setting. Using a temporally constrained fossil dataset from one of the most expanded K–Pg successions in the world, integrated with palaeoenvironmental information, we provide the most detailed examination of the patterns and timing of recovery from the K–Pg mass extinction event in the high southern latitudes of Antarctica. The timing of biotic recovery was influenced by global stabilization of the wider Earth system following severe environmental perturbations, apparently regardless of latitude or local environment. Extinction intensity and ecological change were decoupled, with community scale ecological change less distinct compared to other locations, even if the taxonomic severity of the extinction was the same as at lower latitudes. This is consistent with a degree of geographical heterogeneity in the recovery from the K–Pg mass extinction. Recovery in Antarctica was influenced by local factors (such as water depth changes, local volcanism, and possibly incumbency and pre‐adaptation to seasonality of the local benthic molluscan population), and also showed global signals, for example the radiation of the Neogastropoda within the first million years of the Danian, and a shift in dominance between bivalves and gastropods.

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The eruptive tempo of Deccan volcanism in relation to the Cretaceous-Paleogene boundary

Cited by 309 publications

References 43 publications

Nature of Cretaceous dolerite dikes with two distinct trends in the Damodar Valley, eastern India: Constraints on their linkage to mantle plumes and large igneous provinces from 40Ar/39Ar geochronology and geochemistry

Nature of Cretaceous dolerite dikes with two distinct trends in the Damodar Valley, eastern India: Constraints on their linkage to mantle plumes and large igneous provinces from 40Ar/39Ar geochronology and geochemistry

No Evidence for a Large Atmospheric CO₂ Spike Across the Cretaceous‐Paleogene Boundary

Nature and timing of biotic recovery in Antarctic benthic marine ecosystems following the Cretaceous–Palaeogene mass extinction

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The eruptive tempo of Deccan volcanism in relation to the Cretaceous-Paleogene boundary

Cited by 309 publications

References 43 publications

Nature of Cretaceous dolerite dikes with two distinct trends in the Damodar Valley, eastern India: Constraints on their linkage to mantle plumes and large igneous provinces from 40Ar/39Ar geochronology and geochemistry

Nature of Cretaceous dolerite dikes with two distinct trends in the Damodar Valley, eastern India: Constraints on their linkage to mantle plumes and large igneous provinces from 40Ar/39Ar geochronology and geochemistry

No Evidence for a Large Atmospheric CO2 Spike Across the Cretaceous‐Paleogene Boundary

Nature and timing of biotic recovery in Antarctic benthic marine ecosystems following the Cretaceous–Palaeogene mass extinction

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No Evidence for a Large Atmospheric CO₂ Spike Across the Cretaceous‐Paleogene Boundary