Age determination and faunal composition of sediments off northern Greenland

We present a record encompassing marine isotope stages 7-1 from a hitherto unexplored and heavily ice-covered area of the Arctic Ocean, the Lomonosov Ridge off the northern Greenland-Canada continental margin, using nannofossil and benthic foraminifera stratigraphy. Planktic foraminifera assemblages are used as a key paleoceanographic proxy, and a surprisingly large variability is found for an interior Arctic Ocean site. Abundant small (63-125 µm) subpolar Turborotalita quinqueloba occur in two sections, possibly representing substages 5e (last interglacial) and 5a (warm interstadial). However, the present-day circulation pattern and the very distant location of high productive regions cannot explain such high abundances of subpolar specimens in the interior, perennially sea ice-covered Arctic Ocean. Hence our proxy record indicates that last interglacial sea ice concentrations were reduced off some areas of northern Greenland-Canada. Whether this was part of a larger regional pattern or it represents the influence of polynya areas with locally increased productivity remains to be solved. With respect to glacial conditions, increased ice-rafted debris (IRD) deposition in the area appears to be associated with glacial stages 6, 4, and late 3. Stage 2 sediments (including the Last Glacial Maximum) are condensed with a sparse IRD content only.

Southern California Baseline Studies and Analysis: 1975-1978. Master Table of Contents

This is only the table of contents for a series of technical reports done from 1975-1978. The papers were done on contract for BLM by a number of universities and consulting firms such as Science Applications, Inc., University of Southern California, Scripps Institute of Oceanography, Moss Landing Marine Laboratories, and various campuses of University of California and California State University. (PDF contains 36 pages)

The Contemporary Group, February 12 and 13 , 1975

Concert program for The Contemporary Group, February 12 and 13, 1975

Review of activities in transport and communications (1975-1985)

Includes bibliography

Evaluaciones regionales de la Estrategia Internacional del Desarrollo. Quito, Ecuador, 1973. Chaguaramas, Trinidad y Tobago, 1975 = Regional appraisals of the International Development Strategy. Quito, Ecuador, 1973. Chaguaramas, Trinidad and Tobago, 1975

Evaluación de Quito. Resolución 320XV aprobada por la CEPAL en su Decimoquinto Período de Sesiones, Quito, Ecuador, 1973. Evaluación de Chaguaramas. Resolución 347XVI aprobada por la CEPAL en su Decimosexto Período de Sesiones, Puerto España, Trinidad y Tobago, 1975

A geographic dimension for decisionmaking : conference proceedings, October 30 and 31, 1975, San Francisco, California.

Item 142-F