Mercury enrichment and Hg isotopes in Cretaceous–Paleogene boundary successions: Links to volcanism and palaeoenvironmental impacts

AN Sial, J Chen, LD Lacerda, R Frei, VC Tewari… - Cretaceous …, 2016 - Elsevier
We investigate the use of Hg as a proxy for volcanism by studying four distal and two
proximal sections in relation to the Deccan volcanic center, straddling the Cretaceous–
Paleogene (KPg) boundary at (a) Højerup (Denmark), Bottaccione and Padriciano (Italy),(b)
Meghalaya and Jhilmili (India), and (c) Bajada del Jagüel (Argentina). Hg sequestration by
organic matter results in constant Hg/TOC ratio and linear correlation between Hg content of
the sediments and total organic carbon (TOC). Elevated Hg concentrations that deviate from …
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