Robuta

https://www.geology.lu.se/karl-ljung/publication/f43f1395-4877-44ed-9587-7f4a4e9173c3 Radiocarbon wiggle matching of Swedish lake varves reveals asynchronous climate changes around the... https://www.usgs.gov/publications/persistent-late-pleistocene-holocene-seasonal-upwelling-and-varves-coast-california Persistent late Pleistocene-Holocene seasonal upwelling and varves off the coast of California |... Seasonal production of siliceous phytoplankton and a seasonal flux of terrigenous clastic material produced varved sediments along the continental slope off...