scholarly journals GSC Atlantic core expeditions 1990 1999

2000 ◽  
Author(s):  
I A Hardy
Keyword(s):  
Atlantic Core

Atlantic core-top calibration of the U37K index as a sea-surface palaeotemperature indicator

1995 ◽  
Vol 59 (15) ◽  
pp. 3099-3107 ◽  
Author(s):  
Antoni Rosell-Melé ◽  
Geoffrey Eglinton ◽  
Uwe Pflaumann ◽  
Michael Sarnthein
Keyword(s):  
Sea Surface ◽  
Atlantic Core

scholarly journals Coccolithophores as proxy of seawater changes at orbital-to-millennial scale during middle Pleistocene Marine Isotope Stages 14-9 in North Atlantic core MD01-2446

2014 ◽  
Vol 29 (6) ◽  
pp. 518-532 ◽  
Author(s):  
Maria Marino ◽  
Patrizia Maiorano ◽  
Francesca Tarantino ◽  
Antje Voelker ◽  
Lucilla Capotondi ◽  
...  
Keyword(s):  
North Atlantic ◽  
Middle Pleistocene ◽  
Atlantic Core ◽  
Millennial Scale

North Atlantic Core Foraminifera Collected by Swedish Deep-Sea Expedition: ABSTRACT

AAPG Bulletin ◽  
1953 ◽  
Vol 37 ◽  
Author(s):  
Fred B. Phleger, Frances L. Parker,
Keyword(s):  
North Atlantic ◽  
Deep Sea ◽  
Atlantic Core

scholarly journals Late Quaternary high-resolution biomarker and other sedimentary climate proxies in a Northeast Atlantic Core

1997 ◽  
Vol 12 (2) ◽  
pp. 255-269 ◽  
Author(s):  
Luiz A. S. Madureira ◽  
Shirley A. van Kreveld ◽  
Geoffrey Eglinton ◽  
Maureen H. Conte ◽  
Gerald Ganssen ◽  
...  
Keyword(s):  
High Resolution ◽  
Late Quaternary ◽  
Northeast Atlantic ◽  
Atlantic Core ◽  
Climate Proxies

The Ecclesiastical Colonization of Central America

Itinerario ◽  
1983 ◽  
Vol 7 (1) ◽  
pp. 46-56
Author(s):  
Adriaan C. van Oss
Keyword(s):  
Latin American ◽  
North Atlantic ◽  
World Economy ◽  
Dependency Theory ◽  
Economic Dependence ◽  
Colonial Era ◽  
Spanish Colonial ◽  
The North ◽  
The North Atlantic ◽  
Atlantic Core

Dependency theory, which places responsibility for the underdevelopment of the peripheral zones of the world economy upon the North Atlantic core, might well be called a Latin American invention. It goes back, after all, to an article published in 1949 by the Argentine economist Raul Prebisch. Since that time, acceptance of the basic argument — which emphasizes intercontinental trade — has grown, also among historians. Economic dependence with respect to the North Atlantic world began during the colonial era, and forms the principal legacy of that period of Latin American history, according to Stanley and Barbara Stein's The Colonial Heritage of Latin America, first published in 1970 and now in its tenth printing.1 This view has it that economic dependence grew out of Spanish exploitation of American gold and silver, + maritime commerce in tropical plantation products. The entire Spanish colonial world in America would appear to have rested on these two pillars.

Deep circulation change linked to HEINRICH Event 1 and Younger Dryas in a middepth North Atlantic Core

1994 ◽  
Vol 9 (2) ◽  
pp. 185-194 ◽  
Author(s):  
Lloyd D. Keigwin ◽  
Scott J. Lehman
Keyword(s):  
North Atlantic ◽  
Younger Dryas ◽  
Deep Circulation ◽  
Heinrich Event ◽  
Circulation Change ◽  
Atlantic Core ◽  
Heinrich Event 1

scholarly journals Northern Atlantic

Radiocarbon ◽  
1988 ◽  
Vol 30 (3) ◽  
pp. 269-273
Keyword(s):  
Surface Water ◽  
Water Temperature ◽  
Surface Water Temperature ◽  
Temperature Changes ◽  
Northern Atlantic ◽  
Atlantic Core

The study of this northern Atlantic core was undertaken to establish the chronology of surface water temperature changes in the northern Atlantic from 40,000 years ago to present (see Figs 3, 4; Table 4).

Recognition of Truncorotalia Crassaformis As a Modern Planktonic Foraminiferal Morphospecies in the Caribbean and Equatorial Atlantic Ocean and Proposal of a Neotype

2019 ◽  
Vol 49 (1) ◽  
pp. 94-102
Author(s):  
George H. Scott
Keyword(s):  
Sediment Traps ◽  
Population Variation ◽  
Shell Shape ◽  
Equatorial Atlantic ◽  
Type Specimens ◽  
Outer Whorl ◽  
Morphometric Analyses ◽  
Equatorial Atlantic Ocean ◽  
Atlantic Core ◽  
Selection Of

Abstract To clarify patterns of within-population variation in Truncorotalia crassaformis and their bearing on selection of a neotype, the shape of shells from two Caribbean sediment traps was analyzed statistically. These data were compared with those from a Holocene equatorial Atlantic core, from topotypes of Globigerina crassaformis Galloway and Wissler (Lomita Quarry, California), and from type specimens of Globorotalia oceanica. This approach was used because the holotype (now destroyed) was the only designated specimen. Morphometric analyses of shells in axial and spiral orientations use data from equally-spaced coordinates around their outlines recorded from SEM imagery. Special attention is given to the profile of the last-formed chamber and to development of a keel at its periphery. Comparison of data from 150 m and 700 m traps shows that the former population includes only small, possibly pre-adult specimens that are non-crusted. Shell shape, especially in axial orientation is much less variable than in the 700 m sample which includes many encrusted and kummerform specimens. Variation in the Holocene sample is closely similar to that in the 700 m trap. Between group comparisons show that the holotype and two paratypes of Globorotalia oceanica plot within the morphospaces of the trap and Holocene samples. All are referred to Truncorotalia crassaformis on the basis of their shape, calcification patterns, and notably the absence of a keel or carina on the final chamber. It is likely that its holotype had this attribute. The axial shape of the neotype is similar to the modelled mean shape of specimens from the sediment traps. Topotypes with a keel on all chambers of the outer whorl are identified as Truncorotalia aff. crassacarina.

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