Early Cretaceous Greater Kerguelen Large Igneous Province and its plumbing systems: A contemplation on concurrent magmatic records of the eastern Indian Shield and adjoining regions

2021 ◽  
Author(s):  
Rajesh K. Srivastava
Keyword(s):  
Early Cretaceous ◽  
Large Igneous Province ◽  
Indian Shield ◽  
Igneous Province ◽  
Plumbing Systems

scholarly journals Early Cretaceous high-Ti and low-Ti mafic magmatism in Southeastern Tibet: Insights into magmatic evolution of the Comei Large Igneous Province

Lithos ◽  
2018 ◽  
Vol 296-299 ◽  
pp. 396-411 ◽  
Author(s):  
Yaying Wang ◽  
Lingsen Zeng ◽  
Paul D. Asimow ◽  
Li-E Gao ◽  
Chi Ma ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Large Igneous Province ◽  
Magmatic Evolution ◽  
Mafic Magmatism ◽  
Igneous Province ◽  
Southeastern Tibet

scholarly journals Whole-rock elemental and zircon Hf isotopic geochemistry of mafic and ultramafic rocks from the Early Cretaceous Comei large igneous province in SE Tibet: constraints on mantle source characteristics and petrogenesis

1970 ◽  
Vol 5 (7) ◽  
pp. 178-180 ◽  
Author(s):  
Di-Cheng Zhu ◽  
Xuan-Xue Mo ◽  
Zhi-Dan Zhao ◽  
Yaoling Niu ◽  
Sun-Lin Chung
Keyword(s):  
Early Cretaceous ◽  
Mantle Source ◽  
Large Igneous Province ◽  
Ultramafic Rocks ◽  
Special Issue ◽  
Source Characteristics ◽  
Igneous Province ◽  
Isotopic Geochemistry ◽  
Se Tibet

DOI = 10.3126/hjs.v5i7.1350 Himalayan Journal of Sciences Vol.5(7) (Special Issue) 2008 p.178-180

Hydrocarbon generation in the Permian Irati organic-rich shales under the influence of the early cretaceous Paraná Large Igneous Province

2020 ◽  
Vol 117 ◽  
pp. 104410
Author(s):  
C.A.S. Teixeira ◽  
R.M.S. Bello ◽  
N.S. Almeida ◽  
A. Pestilho ◽  
S. Brochsztain ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Large Igneous Province ◽  
Hydrocarbon Generation ◽  
Igneous Province

Architecture of the Canadian portion of the High Arctic Large Igneous Province and implications for magmatic Ni–Cu potential

2016 ◽  
Vol 53 (5) ◽  
pp. 528-542 ◽  
Author(s):  
B.M. Saumur ◽  
K. Dewing ◽  
M.-C. Williamson
Keyword(s):  
Structural Characteristics ◽  
Critical Role ◽  
Regional Scale ◽  
High Arctic ◽  
Large Igneous Province ◽  
Intrusive Complex ◽  
Local Evidence ◽  
Igneous Province ◽  
Plumbing Systems ◽  
Sverdrup Basin

The Cretaceous to Paleogene High Arctic Large Igneous Province (HALIP) occurs in circum-Arctic regions, and the largest portion of the province occurs in Canada’s Arctic Archipelago. This paper reviews and documents the geometry and distribution of the Canadian portion of the HALIP, focussing most notably on the architecture of its intrusive component. The extent of dyke swarms and sills of the Canadian HALIP is updated and is shown to be greater than previously acknowledged. Sills, in particular, occur throughout the Sverdrup Basin and crop out extensively on Axel Heiberg Island within Triassic to Cretaceous strata. The HALIP event is dominantly intrusive, with 3–5 times more intrusive rocks than extrusive rocks, by volume. There is local evidence of syn-emplacement fault activity, possibly involving the reactivation of older faults, controlling the emplacement of dykes. In the eastern Sverdrup Basin, exposures of components of the HALIP are controlled by tectonic elements of the Eocene Eurekan Orogeny, with plumbing systems (dykes, sills) exposed along regional-scale anticlines or the hanging walls of thrusts. Portions of the HALIP have been shown to be prospective for magmatic Ni – Cu – platinum group elements (PGEs) based on geochemistry, and although geochemical controls play a critical role in the genesis of such deposits, structural and magma dynamic controls are also important to consider at the scale of 1–10 km magmatic complexes. Underpinned by the architecture of the Canadian HALIP, we document the structural characteristics of three 1–10 km-scale volcanic–intrusive complexes of the province that show Ni–Cu–PGE prospectivity: the volcanic–intrusive complex of the Strand Fiord – Expedition Fiord area, the Surprise Fiord dykes, and the Wootton Intrusive Complex. All three represent physico-structural environments that would likely promote high magma flowthrough and sulphide transport, and could be targeted for Ni–Cu–PGE magmatic sulphide mineralization.

Exploring the role of High Arctic Large Igneous Province volcanism on Early Cretaceous Arctic forests

2021 ◽  
pp. 105022
Author(s):  
Jennifer M. Galloway ◽  
Robert A. Fensome ◽  
Graeme T. Swindles ◽  
Thomas Hadlari ◽  
Jared Fath ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
High Arctic ◽  
Large Igneous Province ◽  
Igneous Province

Assessing orbital vs. volcanic control on carbon cycle during the Early Cretaceous

2021 ◽  
Author(s):  
Mathieu Martinez ◽  
Beatriz Aguirre-Urreta ◽  
Marina Lescano ◽  
Guillaume Dera ◽  
Julieta Omarini ◽  
...  
Keyword(s):  
Carbon Isotope ◽  
Early Cretaceous ◽  
Time Scale ◽  
Environmental Changes ◽  
Large Igneous Province ◽  
Carbonate Production ◽  
Geologic Time ◽  
Lower Amplitude ◽  
Igneous Province ◽  
Geologic Time Scale

<p>The interval from the Valanginian to the Barremian stages (137–121 Ma; Early Cretaceous) is punctuated by several episodes of environmental changes, accompanied by shifts in weathering intensity on the continents and changes in the Tethyan neritic carbonate production. We synthetize here the astrochronology of two recent studies performed in the Neuquén basin, Vocontian Basin and Subbetic Domain (Aguirre-Urreta et al., 2019; Martinez et al., 2020), anchored to CA-ID-TIMS U-Pb ages, which conclusions have been included in the Geologic Time Scale 2020 (Gale et al, in press). We applied this time scale to a compilation of carbon-isotope ratio from belemnites and proxies of detrital supply in the Tethyan area (Vocontian Basin and Subbetic Domain). From this compilation, we show that the episodes of environmental changes are paced by a 2.4-Myr cycle and, with a lower amplitude, a 1.2-Myr cycle. In addition, the new time scale shows the synchronicity between the Weissert Event and the Parana-Etendeka Large Igneous Province. In the series of carbon-isotope ratios measured on belemnite rostra, the amplitude of the 2.4-Myr cycle is twice higher during the Valanginian than in the Late Barremian and three times higher than in the Hauterivian and Early Barremian, suggesting that the activity of the Parana-Etendeka Large Igneous Province amplified the initial orbital forcing to trigger the environmental changes observed during the Mid-Valanginian.</p><p>Reference:</p><p>Aguirre-Urreta, B., Martinez, M., Schmitz, M., Lescano, M., Omarini, J., Tunik, M., Kuhnert, H., Concheyro, A., Rawson, P.F., Ramos, V.A., Reboulet, S., Noclin, N., Frederichs, T., Nickl, A.-L., Pälike, H., 2019. Interhemispheric radio-astrochronological calibration of the time scales from the Andean and the Tethyan areas in the Valanginian–Hauterivian (Early Cretaceous). Gondwana Research 70, 104-132. https://doi.org/10.1016/j.gr.2019.01.006.</p><p>Gale, A.S., Mutterlose, J., Batenburg, S., in press. Chapter 27: The Cretaceous Period, in: Gradstein, F.M., Ogg, J.G., Schmitz, M.D., Ogg, G.M. (Eds.) Geologic Time Scale 2020. Elsevier BV, Amsterdam, The Netherlands, pp. 1023–1086.</p><p>Martinez, M., Aguado, R., Company, M., Sandoval, J., O’Dogherty, L., 2020. Integrated astrochronology of the Barremian Stage (Early Cretaceous) and its biostratigraphic subdivisions. Global and Planetary Change 195, 103368. https://doi.org/10.1016/j.gloplacha.2020.103368.</p>

Existence of the DHArwar-BAstar-SInghbhum (DHABASI) megacraton since 3.35 Ga: Constraints from the Precambrian Large Igneous Province record

2021 ◽  
pp. SP518-2021-53
Author(s):  
Rajesh K. Srivastava ◽  
Richard E. Ernst ◽  
Ulf Söderlund ◽  
Amiya K. Samal ◽  
Om Prakash Pandey ◽  
...  
Keyword(s):  
Building Block ◽  
Large Igneous Province ◽  
Indian Shield ◽  
Large Igneous Provinces ◽  
The Past ◽  
Igneous Provinces ◽  
Igneous Province ◽  
The Individual ◽  
Age Range

AbstractWe propose a Precambrian megacraton (consisting of two or more ancient cratons) ‘DHABASI’ in the Indian Shield that includes the Dharwar, Bastar and Singhbhum cratons. This interpretation is mainly based on seven large igneous provinces (LIPs) that are identified in these three cratons over the age range of ca. 3.35-1.77 Ga, a period of at least 1.6 Gyr. The absence of any subsequent breakup of ‘DHABASI’ since 1.77 Ga suggests that this megacraton has existed for the past 3.35 Gyr.In addition to their use in recognizing this megacraton, these LIP events may also provide likely targets for Cu-Ni-Cr-Co-PGE deposits. We suggest that the megacraton ‘DHABASI’ was an integral part of supercontinents/supercratons through Earth's history, and that it should be utilized as a distinct building block for paleocontinental reconstructions rather than using the individual Dharwar, Bastar and Singhbhum cratons.

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