Preservation of the alkenone paleotemperature proxy in uplifted marine sequences: A test from the Vrica outcrop, Crotone, Italy

Evolution of Mediterranean sea surface temperatures 3.5–1.5 Ma: Regional and hemispheric influences

“…However, the San Nicola section was very deeply weathered, and, as will be demonstrated later, seems to suffer from a small weathering-related offset in the alkenone U k 37 index relative to the other sections sampled. Results from the present sampling were combined with data previously obtained from the Vrica section (Cleaveland and Herbert, 2009).…”

“…C 37:3 and C 37:2 alkenones were quantified using an Agilent 6890 gas chromatographic system, following procedures provided in Cleaveland and Herbert (2009). A sediment laboratory standard was included in each GC run to monitor system drift, and approximately 10% of the Italian samples were run in replicate.…”

Regional and global significance of Pliocene sea surface temperatures from the Gulf of Cadiz (Site U1387) and the Mediterranean

“…The proxy can resolve SST over a wide range of timescales and salinity conditions in the Mediterranean effectively capturing orbital scale fluctuations (Emeis et al, 1998(Emeis et al, , 2000(Emeis et al, , 2003. Recent work shows that the utility of the U K' 37 index can extend to uplifted marine sections (Beltran et al, 2011;Cleaveland and Herbert, 2009) of the Pliocene/Pleistocene.…”

Mid-Burdigalian Paratethyan alkenone record reveals link between orbital forcing, Antarctic ice-sheet dynamics and European climate at the verge to Miocene Climate Optimum

“…SST estimates are based on the reconstruction of the U K′ 37 index from lithified marine sequences ( Cleaveland and Herbert, 2009; Beltran et al, 2011 ). Samples were homogenized using a mortar and pestle.…”