Tracing acidification induced by Deccan Phase 2 volcanism
نویسندگان
چکیده
منابع مشابه
Mercury anomaly, Deccan volcanism, and the end-Cretaceous mass extinction
The contribution of the Deccan Traps (west-central India) volcanism in the CretaceousPaleogene (KPg) crisis is still a matter of debate. Recent U-Pb dating of zircons interbedded within the Deccan lava flows indicate that the main eruptive phase (>1.1 × 106 km3 of basalts) initiated ~250 k.y. before and ended ~500 k.y. after the KPg boundary. However, the global geochemical effects of Deccan vo...
متن کاملPaleoenvironmental signature of the Deccan Phase-2 eruptions
*Correspondence: Eric Font, IDL-FCUL, Instituto Dom Luís, Faculdade de Ciências, Universidade de Lisboa, Edifício C8-8.3.22, Campo Grande, 1749-016 Lisboa, Portugal e-mail: [email protected] The environmental impact of the Deccan trap volcanism is poorly understood as yet. The paucity of geological markers that can unambiguously be attributed to the Deccan volcanism and the temporal coincid...
متن کاملEnd-Cretaceous extinction in Antarctica linked to both Deccan volcanism and meteorite impact via climate change
The cause of the end-Cretaceous (KPg) mass extinction is still debated due to difficulty separating the influences of two closely timed potential causal events: eruption of the Deccan Traps volcanic province and impact of the Chicxulub meteorite. Here we combine published extinction patterns with a new clumped isotope temperature record from a hiatus-free, expanded KPg boundary section from Sey...
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بیمه گران همیشه بابت خسارات بیمه نامه های تحت پوشش خود نگران بوده و روش هایی را جستجو می کنند که بتوانند داده های خسارات گذشته را با هدف اتخاذ یک تصمیم بهینه مدل بندی نمایند. در این پژوهش توزیع های فیزتایپ در مدل بندی داده های خسارات معرفی شده که شامل استنباط آماری مربوطه و استفاده از الگوریتم em در برآورد پارامترهای توزیع است. در پایان امکان استفاده از این توزیع در مدل بندی داده های گروه بندی ...
Defect in urinary acidification induced in vitro by amphotericin B.
An experimental defect in urinary acidification was induced in the isolated turtle bladder by amphotericin B and the nature of the defect was examined. Net hydrogen ion secretion was little affected by amphotericin when passive electrochemical forces across the epithelium were held at a minimum in the short-circuited state under isohydric conditions. Hydrogen ion secretion against a gradient, h...
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ژورنال
عنوان ژورنال: Palaeogeography, Palaeoclimatology, Palaeoecology
سال: 2016
ISSN: 0031-0182
DOI: 10.1016/j.palaeo.2015.06.033