海洋沉积物中GDGTs和长链二醇的古气候—环境指示意义研究进展
陈立雷, 李凤, 刘健

Advances in Glycerol Dialkyl Glycerol Tetraethers and Long-Chain Alkyl Diols in the Marine Sediments: Implications for Paleoclimatic and Paleoenvironmental Changes
Lilei Chen, Feng Li, Jian Liu
表1 应用于古气候—环境重建的四醚酯和长链二醇主要指标
Table 1 Main indicators for tetraether esters and long-chain alkyl diols used in paleoclimate and paleoenvironmental
指标 公式 指示意义 参考文献
BIT BIT = G D G T - I a + G D G T - I I a + [ G D G T - I I I a ] G D G T - I a + G D G T - I I a + G D G T - I I I a + [ C r e n a r c h a e o l ] 陆源和海源有机质的相对丰度 [20]
TEX86 TEX86 = G D G T - 2 + G D G T - 3 + [ C r e n a r c h a e o l ´ ] G D G T - 1 + G D G T - 2 + G D G T - 3 + [ C r e n a r c h a e o l ´ ] 海水温度 [21]
TEX 86 H 和TEX 86 L

TEX 86 L = log ( G D G T - 2 + G D G T - 3 + [ C r e n a r c h a e o l ´ ] G D G T - 1 + G D G T - 2 + G D G T - 3 + [ C r e n a r c h a e o l ´ ] )

TEX 86 L = log ( G D G T - 2 G D G T - 1 + G D G T - 2 + G D G T - 3 )

 海水温度 [22]

RI-OH

和RI-OH´

RI-OH = O H - G D G T - 1 + 2 × O H - G D G T - 2 O H - G D G T - 1 + O H - G D G T - 2

RI-OH´ = O H - G D G T - 1 + 2 × O H - G D G T - 2 O H - G D G T - 0 + O H - G D G T - 1 + O H - G D G T - 2

海水表层温度 [17]
CBT CBT =-log( G D G T - I b + G D G T - I I b G D G T - I a + G D G T - I I a ) 大气年平均温度和pH [23]
MBT MBT = G D G T - I a + G D G T - I b + [ G D G T - I c ] ∑ [ a l l   b r G D G T s ] pH [23]
DI

DI 1 = C 28 + C 30 1,14 - d i o l s ( C 28 + C 30 1,14 - d i o l s ) + C 30 1,15 - d i o l 或

DI 2 = C 28 + C 30 1,14 - d i o l s ( C 28 + C 30 1,13 - d i o l s ) + ( C 28 + C 30 1,14 - d i o l s )

营养盐状况 [6,24]
LDI LDI = C 30 1,15 - d i o l C 28 1,13 - d i o l + C 30 1,13 - d i o l + C 30 1,15 - d i o l 海水表层温度 [25]
DCI DCI = C 30 1,14 - d i o l C 28 + C 30 1,14 - d i o l s 海水表层温度 [24]
DSI DSI = C 28 + C 30 1,14 - d i o l s ( C 28 + C 30 1,14 - d i o l s ) + ( C 28 : 1 + C 30 : 1 1,14 - d i o l s ) 海水表层温度 [24]