Continuous paleoclimate record recovered for last 5 million years
Article first published online: 3 JUN 2011
©1997. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 78, Issue 51, pages 597–601, 23 December 1997
How to Cite
Baikal Drilling Project BDP-96 (Leg II) Members (1997), Continuous paleoclimate record recovered for last 5 million years, Eos Trans. AGU, 78(51), 597–601, doi:10.1029/97EO00358.
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
From January to March 1996, an ice-based drilling platform (Figure 1) was positioned in 321 m of water above a submerged topographic high known as the Academician Ridge of Lake Baikal, south-central Siberia (Figure 2). The Russian Nedra drilling team expertly used this system to recover the first sediment cores from this region to span the last 5 m.y. before present (Ma). This operation was complicated and dangerous: there were constantly shifting blocks of ice nearly 1 m thick, the location was surrounded by wilderness areas nearly 400 km from the nearest population center (Irkutsk), and supplies and personnel had to travel 90 km over the ice pressure ridges in 4-wheel motorcycles and small vehicles.