Crenarchaeotal membrane lipids in lake sediments:: A new paleotemperature proxy for continental paleoclimate reconstruction?

被引:186
作者
Powers, LA
Werne, JP
Johnson, TC
Hopmans, EC
Damsté, JSS
Schouten, S
机构
[1] Univ Minnesota, Large Lakes Observ, Duluth, MN 55812 USA
[2] Netherlands Inst Sea Res, Dept Marine Biogeochem & Toxicol, NL-1790 AB Den Burg, Netherlands
[3] Univ Utrecht, Fac Geosci, Utrecht, Netherlands
关键词
paleothermometer; lacustrine sediments; climate change; continental climate; biomarkers;
D O I
10.1130/G20434.1
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Paleoclimate studies of continental environments have been hampered by the lack of an independent paleotemperature proxy. A novel sea-surface temperature proxy has been proposed for marine systems based on membrane lipids of marine crenarchaeota (the TEX86-tetraether index of tetraethers with 86 carbon atoms). Analysis of archaeal membrane lipids in core-top sediments from a diverse suite of lacustrine systems suggests the ubiquitous occurrence of low-temperature crenarchaeota in lake systems as well. Application of the TEX86 proxy in these lacustrine systems indicates that it is valid in lake environments, and the calibration of TEX86 in lacustrine systems is similar to that in the marine environment. This proxy will provide an independent continental paleotemperature tool that will allow paleoclimatologists to address fundamental questions about temperature variability in continental environments and its relationship to climate change.
引用
收藏
页码:613 / 616
页数:4
相关论文
共 43 条
[1]  
[Anonymous], GEOL SOC AM MAP CHAR
[2]   Late Oligocene to early Miocene geochronology and paleoceanography from the subantarctic South Atlantic [J].
Billups, K ;
Channell, JET ;
Zachos, J .
PALEOCEANOGRAPHY, 2002, 17 (01)
[3]   Quantitative estimates of full glacial temperatures in equatorial Africa from palynological data [J].
Bonnefille, R. ;
Chalie, F. ;
Guiot, J. ;
Vincens, A. .
CLIMATE DYNAMICS, 1992, 6 (3-4) :251-257
[4]   MOLECULAR STRATIGRAPHY - A NEW TOOL FOR CLIMATIC ASSESSMENT [J].
BRASSELL, SC ;
EGLINTON, G ;
MARLOWE, IT ;
PFLAUMANN, U ;
SARNTHEIN, M .
NATURE, 1986, 320 (6058) :129-133
[5]  
CHALIE F, 1992, THESIS U AIX MARSEIL
[6]   Faunal and alkenone reconstructions of subtropical North Atlantic surface hydrography and paleotemperature over the last 28 kyr [J].
Chapman, MR ;
Shackleton, NJ ;
Zhao, M ;
Eglinton, G .
PALEOCEANOGRAPHY, 1996, 11 (03) :343-357
[7]  
COHEN AS, 1993, GEOLOGY, V21, P511, DOI 10.1130/0091-7613(1993)021<0511:ETAOFO>2.3.CO
[8]  
2
[9]   Tropical Pacific forcing of decadal SST variability in the western Indian Ocean over the past two centuries [J].
Cole, JE ;
Dunbar, RB ;
McClanahan, TR ;
Muthiga, NA .
SCIENCE, 2000, 287 (5453) :617-619
[10]   LONG-CHAIN UNSATURATED-KETONES IN RECENT LACUSTRINE SEDIMENTS [J].
CRANWELL, PA .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1985, 49 (07) :1545-1551