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Progress in Earth and Planetary Science

Table 1 Results of tephra analyses

From: Millennial-scale variability of East Asian summer monsoon inferred from sea surface salinity in the northern East China Sea (ECS) and its impact on the Japan Sea during Marine Isotope Stage (MIS) 3

Sample ID

Sub-bottom depth (cm)

Glass type

Heavy minerals

Glass morphology

Refractive Index of glass shard

Correlation

Maximum

Minimum

Mean

Mode

KRP10650

98–118

bw > > pm

Opx, Opq, Cpx

H > T, C

1.5102

1.5198

1.5123

1.511

K-Ah

KRP10711

170–172

pm

Opx, Cpx, Opq (Ap, GHb)

T, C, H

1.5067

1.5102

1.509

1.509

S-Sz

KRP11507

947.5–990.3

bw > > pm

Opx, GHb, Ap, Cpx, Bt

H > T, C

1.4982

1.5011

1.5001

1.5

AT

  1. Glass type: bw bubble-wall type, pm pumice type. Heavy minerals: Opx orthopyroxene, Cpx clinopyroxene, GHb green hornblende, Opq opaque minerals, Bt biotite, At apatite. Glass morphology (after Yoshikawa 1976): H large broken bubble-wall type, T fibrous and pumice type, C intermediate type
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