Preprint
Varve formation in meromictic Crawford Lake, Ontario, Canada: important process for characterizing the Anthropocene epoch
Abstract
Varved sediments in meromictic Crawford Lake consist of dark-light couplets of organic matter (primarily phytoplankton and amorphous organic matter) capped by calcite crystals. The crystals precipitate in the alkaline epilimnion between spring and fall turnover, consistent with Langelier Saturation Index calculations that predict calcite precipitation when pH and temperature exceed 7.76 and ~ 15°C respectively. Climate, primary production, and …
Authors
Llew-Williams BM; McCarthy FMG; Krueger AM; Riddick NL; MacKinnon M; Lafond KM; Patterson RT; Nasser NA; Head MJ; Pisaric M
DOI
10.21203/rs.3.rs-2281480/v1
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