Lake and Ocean Sediments
Similar to their study on other proxies, paleoclimatologists examine oxygen isotopes in the contents of ocean sediments. Likewise, they measure the layers of varve (deposited fine and coarse silt or clay) laminating lake sediments. Lake varves are primarily influenced by:
- Summer temperature, which shows the energy available to melt seasonal snow and ice
- Winter snowfall, which determines the level of disturbance to sediments when melting occurs
- Rainfall
Read more about this topic: Proxy (climate)
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“Turn back,
back
to the lake of Delos;
lest all the song notes
pause and break
across a blood-stained throat....”
—Hilda Doolittle (1886–1961)
“I know only one person who ever crossed the ocean without feeling it, either spiritually or physically.... he went from Oklahoma to France and back again ... without ever getting off dry land. He remembers several places I remember too, and several French words, but he says firmly, “We must of went different ways. I don’t rightly recollect no water, ever.””
—M.F.K. Fisher (1908–1992)
“People who, out of an inborn moderation, leave every glass standing only half-emptied refuse to admit that everything in the world has its sediments and dregs.”
—Friedrich Nietzsche (1844–1900)