Here we present precisely dated multiple proxy records at a
varved lake sediment core in the center of the Tibetan Empire.
Studies of
varved clays in West Virginia by Janssen and McCoy (1953) placed the minimum duration of Lake Tight at 6,500 years.
In western Estonia, lithology is one of the most important triggers of landslides as they occur mostly in glaciolacustrine
varved clay (Kohv et al.
Kushnir, "Formation and early diagenesis of
varved evaporite sediments in a coastal hypersaline pool.," Journal of Sedimentary Petrology, vol.
Zawrzykraj, P.: 2005, Practicability of new geoelectrical equipment for the lithological characteristic of
varved clays from Plecewice near Sochaczew (central Poland).
Rich, glacial-lacustrine deposits of
varved clays occur, particularly in low-lying valleys.
Trace fossils from Late Pleistocene
varved lacustrine sediments in eastern Lithuania.
Caption: Among the evidence pointing to cold oceans 3.5 billion years ago are
varved sediments (shown).
For example, by comparing meteorological data with chironomid assemblages found in
varved Lake Silvaplana, Switzerland, Larocque et al.
Many naturally-occurring soils, such as flocculated clays,
varved silts or sands, are typically deposited via sedimentation over long periods.
Kuksa mine clay (dark brown, greasy,
varved limnoglacial (lgIIIgr), with bright light sandy inter-layers) mine was selected for a detailed investigation (Tables 1 and 2) (Petrikaitis 2007).