Data Trawler - Survey Details

SS 06/2007 (alternative identifier: SS200706)    - is a Marine National Facility voyage

Period: 2007-07-25 00:00 to 2007-08-13 05:30 UTC

Duration: 19.23 days

From: Madang To: Madang

Region: Bismark Sea, Papua New Guinea

Ship: Southern Surveyor [details]

Description: Volcanism and tectonism of the South Bismarck Microplate,Papua New Guinea.

Voyage Objectives

To study the space - time distribution of the volcanic activity in order to investigate its relationships to the tectonic development fo the South Bismark Microplate, with the aim of understanding deviations from the normal patterns of volcanic activity associated with subduction and termination of subduction.

Scientific Objectives

1. To build on background reconnaissance carried out by previous expeditions (FR 02/2002 and RV Kilo Moana 0419) in the submerged protions of the Bismark Arc in order to characterise the petrogenesis and tectonic setting of the previously unknown volcanic centres. Dredging and sticky wax coring will recover fresh glassy volcanic rock samples. Glasses and bulk rock samples will be analysed for major, trace and volitile elements together with isotopic abundances to determine the volatile contents and melting processes, identify mantle sources including "Indian"-type and possible Manus plume components, and hence obtain insights into upper mantle flows associated with arc-continent collisopn on the northern margin of the Australian Plate.


2. To test young volcanic features for evidence of associated hydrothermal activity. This will be done using a similar plume-location and characterisation approach used on previous voyages by the Chief Scientist and his collaborators.

Leader: R. Arculus (ANU)

Project: National Facility External Users: R. J. Arculus (ANU) [details]