Stable isotope record of Cibicidoides wuellerstorfi from Pleistocene sediments of DSDP Site 86-502 in the Caribbean Sea

Variations in the stable isotopic composition of benthic foraminifera from Deep-Sea Drilling Project (DSDP) site 502B in the Caribbean Sea are used to reconstruct Atlantic intermediate water circulation variability over the last 1.2 m.y. Comparison of this record with other North Atlantic benthic isotope records indicates that Atlantic intermediate water circulation was relatively enhanced during glacial maxima when North Atlantic deep water (NADW) production was reduced. However, a simple, compensatory relationship between intermediate and deepwater circulation is not apparent. Geochemical models have shown that such changes in ocean circulation can affect atmospheric CO2 levels by changing vertical nutrient and alkalinity profiles. The Delta delta13C difference between Caribbean site 502B and deep equatorial Pacific site 677 is highly coherent and in phase with ice volume. Like the delta18O record, there is an increase in amplitude (40%) and a large increase in 100 kyr power after 0.7 Ma. The 1.2? Delta delta13C amplitude scales to 70 ppm V in atmospheric CO2 using Boyle's (1986) box model result. The implied increase in CO2 amplitude after 0.7 Ma may suggest a positive feedback role in effecting the higher-amplitude climatic fluctuations which characterize the last 0.7 m.y.

Catalogue of the governors, trustees, and officers, and of the alumni and other graduates, of Columbia College (originally King's College), in the city of New York, from 1754 to 1876.

Mode of access: Internet.

Catalogue of the governors, trustees, and officers , and of the alumni and other graduates, of Columbia College (originally King's College), in the city of New York, from 1754 to 1864.

Includes index.

The birds of North and Middle America: a descriptive catalog of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean Sea, and the Galapagos Archipelago.

Pts. 1-8, 1901-19 by Robert Ridgway; pt. 9-10, 1941-46 by Robert Ridgway, completed by Herbert Friedmann; pt. 11- , 1950- by Friedmann.

Elizabethan England in gentle and simple life.: Being I. England's address to her three daughters, the Universities of Cambridge and Oxford, and Lincoln's Inn: from Polimanteia, 1595. II. A quest of enquirie by women to know whether the tripe-woman was trimmed, 1595.

The dedication to Polimanteia is signed W.C., and the work has been ascribed to William Clerke or Clarke.

A grammar of the Hebrew language : comprised in a series of lectures; compiled from the best authorities, and typically from Oriental sources, for the use of students in the universities /

Mode of access: Internet.

Catalogue of officers and graduates of Columbia university from the foundation of King's college in 1754.

Lettered on cover: General catalogue 1754-1912.

Catalogue of the governors, trustees, and officers, and of the alumni and other graduates, Columbia College (originally King's College) in the city of New York, from 1754 to l882.

Includes index.

Catalogue of officers and graduates of Columbia university from the foundation of King's college in 1754.

At head of title: Columbia University in the city of New York.

Sir Edward Seaward's narrative of his shipwreck, and consequent discovery of certain islands in the Caribbean sea: with a detail of many extraordinary and highly interesting events in his life, from the year 1733 to 1749.

Preface by H. G. Kingston.

Biographical register of the officers and graduates of the U.S. Military Academy, at West Point, N.Y., from its establishment, March 16, 1802, to the army re-organization of 1866-67.

v. 1. 1802-1840.--v. 2. 1841-1867.

Sir Edward Seaward's narrative of his shipwreck, and consequent discovery of certain islands in the Caribbean sea: with a detail of many extraordinary and highly interesting events in his life, from the year 1733 to 1749, as written in his own diary.

Title vignette.

Biographical register of the officers and graduates of the U. S. Military academy at West Point, N. Y., : from its establishment, in 1802, to 1890.

v. 1., no.1 to 1000.

Selections from Berkeley : with an introduction and notes, for the use of students in the universities /

Mode of access: Internet.