Surface sediment data, CaCO3 and TOC

Modern sedimentary total organic carbon (TOC) content as a proxy for surface water export production was mapped on the shelf and on the upper continental slope of the Benguela upwelling system using 137 core tops. Shelf maxima in TOC can be correlated with maxima in surface water productivity. On the slope, high TOC contents are observed offshore from sites of strong modern upwelling. Estimates of modern TOC mass accumulation rates (MAR) show that approximately 85% of the total is accumulating on the shelf. TOC MAR were calculated, mapped, and budgeted for the Holocene and for the Last Glacial Maximum (LGM) using 19 sediment cores from the continental slope. During the LGM, centers of deposition and production have migrated offshore with respect to their Holocene positions. TOC accumulation on the continental slope was approximately 84% higher during the LGM than during the Holocene, possibly reflecting enhanced productivity. The TOC distribution patterns and sediment echo sounding data suggest that undercurrents strongly influence the sedimentation off Namibia. Winnowing and focusing result in great lateral heterogeneity of sedimentation rates and sediment properties. Individual cores therefore do not necessarily reflect general changes in export production. These results highlight the need for detailed regional studies based on a large number of sediment cores for highly heterogeneous high-productivity areas in order to derive general statements on total fluxes.

Atlantic 231Pa/230Th and biogenic opal compilation of the Holocene and the LGM

The strength and geometry of the Atlantic meridional overturning circulation is tightly coupled to climate on glacial-interglacial and millennial timescales, but has proved difficult to reconstruct, particularly for the Last Glacial Maximum. Today, the return flow from the northern North Atlantic to lower latitudes associated with the Atlantic meridional overturning circulation reaches down to approximately 4,000 m. In contrast, during the Last Glacial Maximum this return flow is thought to have occurred primarily at shallower depths. Measurements of sedimentary 231Pa/230Th have been used to reconstruct the strength of circulation in the North Atlantic Ocean, but the effects of biogenic silica on 231Pa/230Th-based estimates remain controversial. Here we use measurements of 231Pa/230Th ratios and biogenic silica in Holocene-aged Atlantic sediments and simulations with a two-dimensional scavenging model to demonstrate that the geometry and strength of the Atlantic meridional overturning circulation are the primary controls of 231Pa/230Th ratios in modern Atlantic sediments. For the glacial maximum, a simulation of Atlantic overturning with a shallow, but vigorous circulation and bulk water transport at around 2,000 m depth best matched observed glacial Atlantic 231Pa/230Th values. We estimate that the transport of intermediate water during the Last Glacial Maximum was at least as strong as deep water transport today.

The history of the lives of Abeillard and Heloisa : comprising a period of eighty-four years from 1079 to 1163 : with their genuine letters from the collection of Amboise /

The letters (v.2, p. [233]-368) are in English and Latin.

Innocentii Quinti pontificis maximi, ex ordine praedicatorum assumpti, qui antea Petrus de tarantasia dicebatur, in IV librum sententiarum commentaria.

Reprint of 1649-1652 edition.

Francisci de Marchia commentarius in IV libros sententiarum Petri Lombardi /

Work now complete.

Histoire de Beyrouth et des Bohtor émirs dʻal-Gharb,

Appendices includes a continuation from Ibn Asbāt's history of the Tanūkh emirs and a sketch of Beirut from the Ottoman period.

Super primum et secundum sententiarum. Reprint of the 1522 ed.

Cassiciacum; studies in St. Augustine and the Augustinian Order. American ser., v. 4.

Scriptum super primum sententiarum,

1. Prologue. Distinction I.--2. Distinctions II-VIII.

Die Relationen der Identität und Gleichheit nach Johannes Duns Scotus; Untersuchungen zur Ontologie der Beziehungen.

Diss. - Bonn.

Ars pictoria, or, An academy treating of drawing, painting, limning, etching : to which are added XXXI copper plates, expressing the choicest, nearest, and most exact grounds and rules of symmetry /

Errata for Ars pictoria, p. [8] of preliminaries. Errata for Appendix, p. 39.

Sancti Petri Chrysologi Collectio sermonum, a felice episcopo parata, sermonibus extravagantibus adjectis /

Includes indexes.

Selectiora numismata in aere maximi moduli, e museo illustrissimi D.D. Francisci de Camps ... /

Includes indexes.

Ingulph's chronicle of the abbey of Croyland.

Translation of Historia seu descriptio abbatiae croylandensis.

Petri Venerabilis Contra Petrobrusianos hereticos. Cura et studio James Fearns.

Bibliographical footnotes.

Ratherii Veronensis Praeloquiorum libri VI ; Phrenesis, Dialogus confessionalis, Exhortatio et preces /

Text in Latin ; introductory matter in English.