Sentences with phrase «ancient lake deposits»

Case in point: Recently a cache of well - preserved fossils was found in ancient lake deposits in northeastern China and eastern Kazakhstan.

In a new study in Scientific Reports, University of Pennsylvania researchers use an innovative technique to date one of Antarctica's ancient lake deposits.

Antarctica's Friis Hills in the central Dry Valleys of the eastern portion of the continent contains ancient lake deposits indicating that the area has remained frozen for 14 to 17.5 million years.

Not exact matches

Walter mapped likely methane deposits across the region; quantified how much methane, formed when permafrost melts, is bubbling out of current lakes; and compared that with the amount emitted from methane - laden sediments taken from ancient frozen lakes.

Clay deposits and landforms suggest this ancient region once hosted lakes, rivers, and a delta, making it just the sort of place to dig for signs of possible martian life.

The fossil was recovered from sedimentary rock strata that were deposited in an ancient lake roughly 55 million years ago, during the early part of the Eocene epoch.

In this case, the researchers combined records of ancient lake levels, location and extent of glaciation, variations in the composition of stalagmites in caves, and evidence for changes in vegetation and subsurface soil deposits associated with water table depth.

WATERY PAST Sandstone deposits laid down by ancient rivers on Mars, seen in this image from the Curiosity rover, indicate that Gale Crater was once a shallow lake.

Pink flamingos wade through blood - red lagoons on a seemingly endless plateau of snow - covered volcanoes, vast salt deposits and leftovers from ancient lakes that dried long before the first human ever stepped foot on the continent.

Namibia's Etosha National Park, designated as a game reserve in 1907, is one of Africa's major wildlife sanctuaries.2 It centers around a huge, parched depression of silver - white minerals — the Great White Place or Place of Dry Water for which the park is named.3 This ancient, evaporated lake deposit of salt minerals fills with water only after heavy rains.4 The park harbors more than 100 types of mammals, including rare and endangered species such as the black rhinoceros, black - faced impala, tssesebe, and gemsbok.2 Etosha is also home to more than 300 species of birds and more than 100 species of reptiles.4