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Table 1 Previously reported excursional or anomalous magnetic field behavior during 15–30 ka

From: Preliminary paleomagnetic and rock magnetic results from 17 to 22 ka sediment of Jeju Island, Korea: Geomagnetic excursional behavior or rock magnetic anomalies?

Ref.

Location

Age (ka)

Chronology

Paleomagnetic features

Remarks

Sediments

Modern demagnetization and directional analysis used

 Rieck et al. (1992)

Tulelake, California

17–18

tephrochronology, sed. rates

Negative inclination

Younger than 23.4 ka ash bed

 Peck et al. (1996)

Lake Baikal, Siberia

19–20

AMS 14C, sed. rate

Large departure of declination and inclination from the GAD direction in several cores

Large uncertainty in C reservoir correction and sed. rates

 Nowaczyk et al. (1994), Nowaczyk and Knies (2000), Nowaczyk et al. (2003)

Fram Strait, Arctic Ocean

19–20

AMS 14C

Low (or negative) inclination and low RPI in some

Younger than Laschamp and Mono Lake (Auckland) excursion in same cores

 Yamazaki et al. (2003)

northwest off Hokkaido, Japan

25–26

AMS 14C (Itaki and Ikehara, 2003)

Low inclination

Paleodirection on fringe of secular variation

 Macrì et al. (2005)

Wilkes Land Basin, Antarctica

15

age model based on RPI correlation

Low inclination and low RPI

The age model was reconstructed by correlation of the RPI records to global reference curves (Guyodo and Valet 1999; Laj et al. 2002a), in agreement with 14C age and biostratigraphic constraints

  

24

 

Low inclination and low RPI

 

 Hayashida et al. (2007)

Lake Biwa, Japan

27

age model based on tephrochronology and AMS 14C calibrated

Low inclination

Paleodirection on fringe of secular variation; younger than the Aira-Tn (c. 28.8 ka) ash layer

 Xuan et al. (2012)

Yermak Plateau (Core 22), Arctic Ocean

17–18

d18O correlation with AMS 14C calibrated

Low inclination

 

 Lisé-Pronovost et al. (2013)

Laguna Potrok Aike, southern Argentina

20

AMS 14C calibrated

Slightly low inclination and low RPI

Paleodirection on fringe of secular variation

 Channell et al. (2016)

Rockall Trough, NE Atlantic

26.5

AMS 14C calibrated, d18O correlation

Reversed paleodirection and RPI minimum

Duration of c. 350 yrs; younger than Laschamp and Mono Lake (Auckland) excursion in same core

Figs. S1 to S3 in Lund et al. (2017)

Bermuda Rise and Blake Outer Ridge, western North Atlantic

19–21

age model based on d18O correlation (to GISP2)

High-amplitude secular variation and RPI minimum

Cores CH89-9P, CH88-10P, and JPC-14

  

22–23

 

High-amplitude secular variation and RPI minimum

 

Modern demagnetization and directional analysis not used

 Clark and Kennett (1973)

Gulf of Mexico

12–17

foraminifera, sed. rates

Low inclination in 8 cores

Not found in more recent studies

 Yaskawa et al. (1973)

Lake Biwa, Japan

18

14C, sed. rate

VGPs beyond secular variation

not found by Hayashida et al. (2007)

 Noltimier and Colinvaux (1976)

Imuruk Lake, Alaska

17–18

14C, sed. rate

Low inclination

Younger than 20 ka but large age uncertainty; possible glacial disturbance of core?

Lava flows

 Coe et al. (1978)

Hilina Pali, Hawaii

17.8

14C

Low inclination and paleointensity

14C ages were from Rubin and Berthold (1961) and did not directly date the lava flows

 Laj et al. (2002b)

SOH4 core, Hawaii

18

age model based 14C ages and geomagnetic tie-points

Negative inclination and low paleointensity

Age model is from Quane et al. (2000); younger than Laschamp and Mono Lake (Auckland) excursion in same core

 Teanby et al. (2002)

SOH1 core, Hawaii

20

40Ar/39Ar, K–Ar, lava accumulation rate

Negative inclinations and low paleointensities in c. 40 lava flows

Younger than Laschamp and Mono Lake (Auckland) excursion in same core

 Cassata et al. (2008)

Hampton Park volcano, Auckland

26.6

40Ar/39Ar

Intermediate VGPs (Shibuya et al. 1992) and low paleointensity (Mochizuki et al. 2006)

 

 Turrin et al. (2013)

Swift Creek, Washington

17.3

40Ar/39Ar

Low inclination

Paleodirection on fringe of secular variation

 

Tabernacle Hill, Utah

16.9

 

Low inclination

 

 Singer et al. (2014b)

Tianchi (Cheonji), China

17.1

40Ar/39Ar

Low paleointensity and VGPs with low northern and southern latitudes (Zhu et al. 2000)

 

 Leonard et al. (2017)

Taylors Hill, Auckland

27.4

40Ar/39Ar

Intermediate VGPs (Cassidy 2006)