FRONTIER EXPLORATION 36 GEO ExPro May 2008 GEO ExPro May 2008 38 The Russian Chukchi Sea In 2006, TGS-NOPEC Geophysical Company acquired 3600km of multi-client 2D seismic in the Russian Chukchi Sea in cooperation with Geophysical Solutions Integrator. The Chukchi Sea has an average water depth of 77m and comprises some 600,000 km 2 when including the American part. The sea is navigable between July and October both eastward and westward from the shallow Bering Strait. The Chukchi Sea belongs to the Arctic Ocean and is bounded to the west by the Wrangel Island and East Siberian Sea, to the south by northeastern Siberia and northwestern Alaska, to the east by the Beaufort Sea, and to north by the Arctic continental slope. The Chukchi Sea sedimentary basins all lie on the North American plate. © NOAA With little seismic data, and no wells, the assessment of the Russian Chukchi Sea depends largely on field work and outcrop studies on the Chukotka Peninsula on the northeastern shore of Siberia and the Wrangel Island in the Chukchi Sea. Here we see carbonates with minor clastic of Carboniferous age. Wrangel Island, Tsentran’nye Moun- tains, Khishchnikov head river. Photo: Vladimir Verzhbitsky Southern flank of the North Chukchi basin Buried Northern termination of Wrangel Arch 0.000 1.000 2.000 3.000 4.000 5.000 0.000 1.000 2.000 3.000 4.000 5.000 Upper Oligocene (~24 Ma) Unconformity (?) Mid-Brookian (Early Tertiary, Paleocene, ~65-60 Ma) Unconformity Lower Cretaceous Unconformity (~130-125 Ma) Miocene-Quaternary Paleocene-Oligocene Lower Cretaceous (Aptian-Albian)- Upper Cretaceous Silurian (?)-Devonian(?)-Carboniferous- Lower Cretaceous (Neocomian)
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F R O N T I E R E X P L O R A T I O N
36 GEO ExPro May 2008 GEO ExPro May 2008 38
The Russian Chukchi SeaIn 2006, TGS-NOPEC Geophysical Company acquired 3600km of multi-client 2D seismic in the Russian Chukchi Sea in cooperation with Geophysical Solutions Integrator. The Chukchi Sea has an average water depth of 77m and comprises some 600,000 km2 when including the American part. The sea is navigable between July and October both eastward and westward from the shallow Bering Strait.
The Chukchi Sea belongs to the Arctic Ocean and is bounded to the west by the Wrangel Island and East Siberian Sea, to the south by northeastern Siberia and northwestern Alaska, to the east by the Beaufort Sea, and to north by the Arctic continental slope. The Chukchi Sea sedimentary basins all lie on the North American plate.
© N
OAA
With little seismic data, and no wells, the assessment of the Russian Chukchi Sea depends largely on field work and outcrop studies on the Chukotka Peninsula on the northeastern shore of Siberia and the Wrangel Island in the Chukchi Sea. Here we see carbonates with minor clastic of Carboniferous age. Wrangel Island, Tsentran’nye Moun-tains, Khishchnikov head river.
Phot
o: V
ladi
mir
Verz
hbits
ky
Southern flank of the North Chukchi basinBuried Northern termination of Wrangel Arch
0.000
1.000
2.000
3.000
4.000
5.000
0.000
1.000
2.000
3.000
4.000
5.000
Upper Oligocene (~24 Ma)Unconformity (?)
Mid-Brookian(Early Tertiary,Paleocene, ~65-60 Ma)Unconformity
Lower Cretaceous Unconformity (~130-125 Ma)
Miocene-Quaternary
Paleocene-Oligocene
Lower Cretaceous(Aptian-Albian)-Upper Cretaceous
Silurian (?)-Devonian(?)-Carboniferous-Lower Cretaceous (Neocomian)
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