Proposed ages include 1.8 and 2.8 million years ago, lake deposits lie on top of a 2.8 ?0.4 million years old ash layer.
22.
In this area there is a belt of sandstones overlain by glacial and lake deposits formed at the close of the last ice age.
23.
Rajasaur and sauropod fossils are known from river and lake deposits that were quickly buried by Deccan volcanic flows . and " Isisaurus ".
24.
The former extent of the lake is indicated by typical lake deposits; in the Seerhein valley, such deposits are found all over the valley floor.
25.
Spirit has found traces of limited past water activity in rocks it has examined, but none of the lake deposits scientists hoped it would uncover.
26.
Lake deposits also occur in interglacial lakes in the eastern United States, in Canada and in Europe in Germany, France, Denmark and the Czech Republic.
27.
It may be an ancient playa lake deposit, and it will likely be the mission's first target in checking for the presence of organic molecules.
28.
It is dated to 191, 000 years BP . This date is of a tuff associated with lake deposits, the deposits themselves have not been dated.
29.
In the Czech Republic tools have been found in ancient lake deposits at Przeletice and a cave site at Stranska Skala, dated no later than 500 kya.
30.
Sedimentation in deltas also occurs in rhythmic patterns as in the lake deposits, but they are thicker and contain coarse-grained materials instead of just silt and clay.
