paleoproductivity
DESCRIPTION
Paleoproductivity. 30. -20.0. 20. -21.0. -22.0. 10. -23. 12. -24. 10. -25. 8. 1700. 1750. 1800. 1850. 1900. 1950. 2000. Bering Sea: Skan Bay Core. Paleoproductivity > 1976 Regime-shift Bering Sea: d 13 C - decrease Opal - variable Gulf of Alaska: - PowerPoint PPT PresentationTRANSCRIPT
Paleoproductivity
2000195019001850180017501700-25
-24
-23
8
10
12
13COpal (%)
Gulf of Alaska: GAK 4 Core
Year AD
Op
al (
%)
-22.0
-21.0
-20.0
10
20
30
13C
Op
al (
%)
GOA GAK 4
Skan Bay
13C
Bering Sea: Skan Bay Core Paleoproductivity > 1976 Regime-shift
Bering Sea:13C - decreaseOpal - variable
Gulf of Alaska: 13C - increaseOpal - increase
Finney et al.