Otolith δ18O record of mid-Holocene sea surface temperatures in Peru

被引：101

作者：

Andrus, CFT ^{[1
]}

Crowe, DE

Sandweiss, DH

Reitz, EJ

Romanek, CS

机构：

[1] Univ Georgia, Dept Geol, Athens, GA 30602 USA

[2] Univ Maine, Dept Anthropol, Orono, ME 04469 USA

[3] Univ Maine, Inst Quaternary Res, Orono, ME 04469 USA

[4] Univ Georgia, Dept Anthropol, Athens, GA 30602 USA

[5] Univ Georgia, Georgia Museum Nat Hist, Athens, GA 30602 USA

[6] Savannah River Ecol Lab, Aiken, SC 29802 USA

来源：

SCIENCE | 2002年 / 295卷 / 5559期

关键词：

D O I：

10.1126/science.1062004

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Peruvian sea catfish (Galeichthys peruvianus) sagittal otoliths preserve a record of modern and mid-Holocene sea surface temperatures (SSTs). Oxygen isotope profiles in otoliths excavated from Ostra [6010 +/- 90 years before the present (yr B.P.); 8degrees55'S] indicate that summer SSTs were similar to3degreesC warmer than those of the present. Siches ototiths (6450 +/- 110 yr B.P.; 4degrees40'S) recorded mean annual temperatures similar to3degrees to 4degreesC warmer than were measured under modern conditions. Trophic level and population diversity and equitability data from these faunal assemblages and other Peruvian archaeological sites support the isotope interpretations and suggest that upwelling of the Peru-Chile current intensified after similar to5000 yr B.P.

引用

页码：1508 / 1511

页数：4

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