40Ar/39Ar Dates from the West Siberian Basin: Siberian Flood Basalt Province Doubled

40Ar/39Ar dates from the West Siberian Basin: Siberian flood basalt province doubled.

Widespread basaltic volcanism occurred in the region of the West Siberian Basin in central Russia during Permo-Triassic times. New 40Ar/39Ar age determinations on plagioclase grains from deep boreholes in the basin reveal that the basalts were erupted 249.4 +/- 0.5 million years ago. This is synchronous with the bulk of the Siberian Traps, erupted further east on the Siberian Platform. The age ...

The basalt geometry in the west siberian basin from satellite gravity, magnetics and seismics

Adding new value to Electromagnetic, Gravity and Magnetic Methods for Exploration Capri, Italy, April 11-14, 2010 The basalt geometry in the west siberian basin from satellite gravity, magnetics and seismics S. Ferrante(), C. Braitenberg (), J. Ebbing () () Dipartimento di Geoscienze, Università di Trieste, Trieste, Italy( ), Geological Survey of Norway (NGU), Trondheim, Norway, and Department...

Siberian Flood Basalts

techniques and fractionation correcting to a 194Pt/ 95pt ratio of 0.9734 (38). 33. E. Anders and N. Grevesse, Geochim. Cosmochim. Acta 53, 197(1989). 34. M. P. Gorton, E. S. Schandl, A. J. Naldrett, Ocean Drilling Project Scientific Results, Leg 140, in press. 35. R. J. Walker et al., Geochim. Cosmochim. Acta 58, 4179 (1994); M. F. Horan, R. J. Walker, V. A. Fedorenko, G. K. Czamanske, ibid., i...

Amplified carbon release from vast West Siberian peatlands by 2100

[1] Extensive new data from previously unstudied Siberian streams and rivers suggest that mobilization of currently frozen, high-latitude soil carbon is likely over the next century in response to predicted Arctic warming. We present dissolved organic carbon (DOC) measurements from ninety-six watersheds in West Siberia, a region that contains the world’s largest stores of peat carbon, exports m...

Siberian Pine Decline and Mortality in Southern Siberian