結論 - 全新世早期微孔珊瑚骨骼穩定碳氧同位素組成與Sr/Ca比值反映之臺灣西南部古環境

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附錄一、AGD-2 岩芯分析區間之 Porites 珊瑚 δ¹⁸O、δ¹³C、Sr/Ca、Sr/Ca 換算之海溫、海估算

Sample

附錄二、AGD-2岩芯Porites珊瑚之U-Th定年結果

Sample Weight ²³⁸U ²³²Th ²³⁴U [²³⁰Th/²³⁸U] ²³⁰Th/²³²Th Age （yr ago） Age （yr ago） Age （yr BP） ²³⁴Uinitial ID g 10^-6g/g ^a 10^-9g/g measured^a activity^c atomic （x 10^-6） uncorrected corrected ^c,d relative to 1950 AD corrected^b

AGD1112-11 0.106 2.9263 ± 0.0034 93.85 ± 0.90 143.7 ± 1.8 0.0919 ± 0.0017 47.23 ± 0.96 9,116 ± 172 8,374 ± 410 8,305 ± 410 147.1 ± 1.8 AGD-1111 0.12 3.4331 ± 0.0027 4.5621 ± 0.0089 145.9 ± 1.4 0.08367 ± 0.00030 1038.2 ± 4.2 8,255 ± 33 8,224 ± 36 8,156 ± 36 149.4 ± 1.5 AGD1112-12 0.113 2.7262 ± 0.0041 6.830 ± 0.026 143.8 ± 2.1 0.08559 ± 0.00061 563.3 ± 4.5 8,468 ± 65 8,410 ± 71 8,342 ± 71 147.3 ± 2.1 AGD1213-13 0.127 2.5842 ± 0.0042 0.1278 ± 0.0037 144.8 ± 2.2 0.08869 ± 0.00028 29579 ± 854 8,779 ± 34 8,778 ± 34 8,709 ± 34 148.4 ± 2.3

Analytical errors are 2 of the mean.

a[²³⁸U] = [²³⁵U] x 137.77 （±0.11‰）（Hiess et al., 2012）;²³⁴U = （[²³⁴U/²³⁸U]activity - 1） x 1000.

b²³⁴Uinitial corrected was calculated based on ²³⁰Th age （T）, i.e., ²³⁴Uinitial = ²³⁴UmeasuredX e^234*T, and T is corrected age.

c[²³⁰Th/²³⁸U]activity = 1 - e^-230T + （²³⁴Umeasured/1000）[230/（230 - 234）]（1 - e^-^（230 - 234） T）, where T is the age.

Decay constants are 9.1705 x 10^-6 yr^-1 for²³⁰Th, 2.8221 x 10^-6 yr^-1 for ²³⁴U （Cheng et al., 2013）, and 1.55125 x 10^-10 yr^-1 for ²³⁸U （Jaffey et al., 1971）.

dAge corrections, relative to chemistry date on Augest 30th, 2018, were calculated using an estimated atomic ²³⁰Th/²³²Th ratio of 4 （± 2） x 10^-6 （Shen et al., 2008）.

在文檔中全新世早期微孔珊瑚骨骼穩定碳氧同位素組成與Sr/Ca比值反映之臺灣西南部古環境 (頁 66-127)