Bell Robin E. author Columbia University. Lamont-Doherty Earth Observatory Karl David M. author Columbia University. Lamont-Doherty Earth Observatory originator text Articles 1999 English As scientists probe for life in new habitats and try to understand the processes that triggered the origin and guided the evolution of life on Earth, environments beneath large ice sheets are beginning to emerge as key ecosystems. Modern subglacial environments are analogues both for the icy moons of Jupiter and the environmental stresses that led to widespread evolutionary radiation following the Neoproterozoic "snowball" Earth. The largest modern analogue to these distant systems is Lake Vostok, a great Antarctic subglacial lake, and the international science community is developing a plan to systematically survey and explore this complex system over the next decade. Approximately the size of Lake Ontario, Lake Vostok lies beneath the 4 km thick East Antarctic ice sheet (Figure 1). The lake is much deeper than Lake Ontario—remotely measured water depths reach 670 m. Geology Geobiology 80 48 573 573 1999 http://dx.doi.org/10.1029/EO080i048p00573-02 http://hdl.handle.net/10022/AC:P:12544 NNC NNC 2012-02-13 15:19:01 -0500 2012-11-20 16:55:09 -0500 6549 eng