Glacial-interglacial changes in the surface water characteristics of the Andaman Sea: Evidence from stable isotopic ratios of planktonic foraminifera

被引：11

作者：

Ahmad S.M. ^{[1
]}

Patil D.J. ^{[2
]}

Rao P.S. ^{[3
]}

Nath B.N. ^{[1
]}

Rao B.R. ^{[2
]}

Rajagopalan G. ^{[3
]}

机构：

[1] National Geophysical Research Institute, Hyderabad 500007, Uppal Road

[2] National Institute of Oceanography, Dona Paula

[3] Birbal Sahni Institute of Palaeobotany

来源：

Journal of Earth System Science | 2000年 / 109卷 / 1期

关键词：

Deglaciation; Holocene; Last glacial maximum (LGM); Stable isotopes; Younger Dryas;

D O I：

10.1007/BF02719159

中图分类号：

学科分类号：

摘要：

Stable carbon and oxygen isotopic analyses of the planktonic foraminifera (Globigerinoides ruber) from a deep sea sediment core (GC-1) in the Andaman Sea show high glacial-to-Holocene δ18O amplitude of 2.1‰ which is consistent with previously published records from this marginal basin and suggest increased salinity and/or decreased temperature in the glacial surface waters of this region. A pulse of 18O enrichment during the last deglaciation can be attributed to a Younger Dryas cooling event and/or to a sudden decrease of fresh water influx from the Irrawady and Salween rivers into the Andaman Sea. High δ13C values observed during the isotopic stages 2 and 4 are probably due to the enhanced productivity during glacial times in the Andaman Sea.

引用

页码：153 / 156

页数：3

共 50 条

[1] Glacial-interglacial changes in the surface water characteristics of the Andaman Sea: Evidence from stable isotopic ratios of planktonic foraminifera
Ahmad, SM
Patil, DJ
Rao, PS
Nath, BN
Rao, BR
Rajagopalan, G
[J]. PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-EARTH AND PLANETARY SCIENCES, 2000, 109 (01): : 153 - 156
[2] Glacial-interglacial tropical sea surface temperature changes deduced from the alkenone paleothermometer
Herbert, TD
[J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2002, 66 (15A) : A323 - A323
[3] Potential glacial-interglacial changes in stable carbon isotope ratios of methane sources and sink fractionation
Schaefer, Hinrich
Whiticar, Michael J.
[J]. GLOBAL BIOGEOCHEMICAL CYCLES, 2008, 22 (01)
[4] Glacial-interglacial changes in Subantarctic sea surface temperature and δ18O-water using foraminiferal Mg
Mashiotta, TA
Lea, DW
Spero, HJ
[J]. EARTH AND PLANETARY SCIENCE LETTERS, 1999, 170 (04) : 417 - 432
[5] Sea surface temperature changes in the Southern California borderlands during the last glacial-interglacial cycle
Mortyn, PG
Thunell, RC
Anderson, DM
Stott, LD
Le, JN
[J]. PALEOCEANOGRAPHY, 1996, 11 (04): : 415 - 429
[6] Sea surface temperature changes in the Southern California Borderlands during the last glacial-interglacial cycle
[J]. Paleoceanography, 4 (415):
[7] El Nino-La Nina pattern of glacial-interglacial transitions: Evidence from geochemical proxies in foraminifera
Koutavas, A
Lynch-Stieglitz, J
Marchitto, TM
[J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2002, 66 (15A) : A413 - A413
[8] CARBON AND OXYGEN ISOTOPIC RECORDS OF BENTHIC FORAMINIFERA FROM THE NORTHEAST INDIAN-OCEAN - IMPLICATIONS ON GLACIAL-INTERGLACIAL ATMOSPHERIC CO2 CHANGES
NAQVI, WA
CHARLES, CD
FAIRBANKS, RG
[J]. EARTH AND PLANETARY SCIENCE LETTERS, 1994, 121 (1-2) : 99 - 110
[9] Glacial-interglacial sea surface temperature changes across the subtropical front east of New Zealand based on alkenone unsaturation ratios and foraminiferal assemblages
Sikes, EL
Howard, WR
Neil, HL
Volkman, JK
[J]. PALEOCEANOGRAPHY, 2002, 17 (02):
[10] SURFACE WATER TEMPERATURE CHANGES IN THE HIGH LATITUDES OF THE SOUTHERN HEMISPHERE OVER THE LAST GLACIAL-INTERGLACIAL CYCLE
Pichon, Jean-Jacques
Labeyrie, Laurent D.
Bareille, Gilles
Labracherie, Monique
Duprat, Josette
Jouzel, Jean
[J]. PALEOCEANOGRAPHY, 1992, 7 (03): : 289 - 318

← 1 2 3 4 5 →