Lithium Isotopes

Abstract

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Assessment of Chalk as an Archive for the Lithium Isotope Composition of Seawater

“… Compilation of Li isotope composition from different low‐Mg calcites adapted from Pogge von Strandmann, Dellinger, and West (2021). Modern calcites: planktonic foraminifera (Hall et al., 2005; Hathorne & James, 2006; Misra & Froelich, 2009), benthic foraminifera (Marriott et al., 2004; Roberts et al., 2018), mollusks and brachiopods (Dellinger et al., 2018), core‐top sediments (Pogge von Strandmann et al., 2019), and cave carbonates (Day et al., 2021).…”

The Travelling of News in 1848: The February Revolution, European News Flows, and the Finnish Press

“…Moreover, as had occurred in 1789, the revolution in France promoted a rapid increase in the number of political newspapers discussing the ongoing turbulence. 22 The invention of the high-speed press in the 1840s enabled information to spread at a new level -for example, the newspaper La Presse printed as many as three editions on a single day. 23 As La Presse rapidly increased its circulation to approximately 78,000 copies in March 1848 and was frequently cited abroad, it became one of the main publications that accelerated the spread of news within and beyond France.…”

“…According to Aftonbladet, the rumour had appeared in the Düsseldorf Zeitung, but the 'Parisian papers' had not confirmed it.40 This example shows that newspapers had to rely on reports from other publications, and that the confirmation of news was sought from several sources. Two days later, on 3 March, Aftonbladet published its first news report on the upheaval in Paris, referring to the events that took place on the evening of 22 The first Finnish newspapers to publish news of the Paris Revolution were Helsingfors Tidningar, Borgå Tidningar, and the official newspaper Finlands Allmänna Tidning. These were Swedish-language publications.…”

A 13 million-year record of Li isotope compositions in island carbonates: Constraints on bulk inorganic carbonate as a global seawater Li isotope archive

“…Following substantial research over the last 30 years, lithium (Li) and its isotopic compositions (δ 7 Li) have emerged as promising proxies for continental silicate weathering, based on modern frameworks that Li isotope fractionations on the Earth's surface are closely linked to the silicate weathering process (see reviews in Tomascak et al, 2016;Penniston-Dorland et al, 2017;Pogge von Strandmann et al, 2020, 2021a. With main Li inputs from rivers and high-temperature hydrothermal fluids at mid-ocean ridges, modern seawater has a long residence time of Li (~1 Myr) and homogeneous δ 7 Li values (~31‰) (Lécuyer et al, 2016;Millot et al, 2004;Hathorne and James, 2006;Misra and Froelich, 2012).…”