(Table 1) Magnetic characteristic properties of selected samples of ODP Hole 134-831B

During Ocean Drilling Program Leg 134 (Vanuatu), geological high sensitivity magnetic tools (GHMT) developed by CEA-LETI and TOTAL were used at two drill sites. GHMT combine two sensors, a proton magnetometer for total magnetic field measurements with an operational accuracy of 0.1 nanoteslas (nT), and a highly sensitive induction tool to measure the magnetic susceptibility with an operational accuracy of a few 10**-6 SI units. Hole 829A was drilled through an accretionary prism and the downhole measurements of susceptibility correlate well with other well-log physical properties. Sharp susceptibility contrasts between chalk and volcanic silt sediment provide complementary data that help define the lithostratigraphic units. At Hole 831B magnetic susceptibility and total field measurements were performed through a 700-m reef carbonate sequence of a guyot deposited on top of an andesitic volcano. The downhole magnetic susceptibility is very low and the amplitude of peak-to-peak anomalies is less than a few 10**-5 SI units. Based on the repeatability of the measurements, the accuracy of the magnetic logging measurements was demonstrated to be excellent. Total magnetic field data at Hole 831B reveal low magnetic anomalies of 0.5 to 5 nT and the measurement of a complete repeat section indicates an accuracy of 0.1 to 0.2 nT. Due to the inclination of the earth's magnetic field in this area (~-40°) and the very low magnetic susceptibility of the carbonate, the contribution of the induced magnetization to the total field measured in the hole is negligible. Unfortunately, because the core recovery was extremely poor (<5%) no detailed comparison between the core measurements and the downhole magnetic data could be made. Most samples have a diamagnetic susceptibility and very low intensity of remanent magnetization (< 10**-4 A/m), but a few samples have a stable remanent magnetization up to 0.005 A/m. These variations of the intensity of the remanent magnetization suggest a very heterogeneous distribution of the magnetization in the carbonate sequence that could explain the magnetic field anomalies measured in these weakly magnetized rocks.

Ephesiaca ...

Bibliographical foot-notes.

Divers opuscules canadiesn.

[v 1. no. 1] Voyer L.N. Les qualités morales du bon militaire. [no. 2] LeMoine, J.M. Le massacre au Fort George. [no. 3] Comité pour la colonisation de la Gaspésie, Québec. Rapport. [no. 4] La St. -Jean-Baptiuébec. -[v. 2. no.1] Cassegrain, A. La grand-tronciade [no. 2] LeMoine, J.M. Le massacre au Fort George. [no. 3] Prières pour les soldats pontífícaux. [no. 4] Provancher, L.A. Traite l̈m̈entaire de botanique.

Rapports: introduction générale.

At head of title: Ministère du commerce, de l'industrie, des posted et des télégraphes.

Terraforming: Ecopolitical Transformations and Environmentalism in Science Fiction /

Terraforming is the process of making other worlds habitable for human life. This book asks how science fiction has imagined how we shape both our world and other planets and how stories of terraforming reflect on science, society and environmentalism.

Histoire de la Gaule ...

Bibliographical foot-notes.

Bemerkungen über Brasilien. Mit gewissenhafter belehrung für auswandernde Deutsche.

With this is bound: Lindley, T., Reise nach Brazilien.

Note sur la fondation d'une nouvelle colonie dans la Guyane française, ou, Premier aperçu d'un nouveau mode de population et de culture pour l'exploitation des régions tropicales : suivi de plusieurs pièces et documents, etc. etc.

Goldsmiths'-Kress no. 33743.7.

Archives.

At head of title, -1920: Protectorat française, Gouvernement tunisien. Direction de l'agriculture, du commerce et de la colonisation.

Archives.

At head of title, -1920: Protectorat française, Gouvernement tunisien. Direction de l'agriculture, du commerce et de la colonisation.

Bulletin.

Name of dept. varies slightly.

Monarchs in Australia: On the winds of a storm?

The monarch butterfly, Danaus plexippus, is one of Australia's best-known exotic butterflies, being first recorded here in the spring/summer of 1870/1871. However, the source of the original population is unknown. Using historical records we suggest that the most likely source of the founder population was from Vanuatu and/or New Caledonia. Many almost simultaneous 'first records' for the butterfly in Australia suggest that a large, well-distributed population was present when first noticed. While such a population may have developed from a limited number of individuals flying across the Coral Sea, the well documented, very dramatic appearance of large monarch populations in Australia does not appear to fit this model. Rather, we hypothesise that large numbers of monarchs were carried to Australia on cyclonic winds: no fewer that 3 cyclones hit the Queensland coast in early 1870. If one or more of these cyclones tracked from the Vanuatu/New Caledonia chain, then they may have transported monarchs. Once established on the central/northern Queensland coast, natural migration would account for the appearance of butterflies further south.