Map helps unravel complexities of the southwestern Pacific Ocean

Type Article
Date 2012-01-03
Language English
Author(s) Collot Julien1, Vendé-Leclerc Myriam1, Rouillard Pierrick1, Lafoy Yves1, Géli LouisORCID2
Affiliation(s) 1 : Geological Survey of New Caledonia, Direction de l’Industrie, des Mines et de l’Énergie de Nouvelle-Calédonie, Nouméa, New Caledonia
2 : Department of Geodynamics and Geophysics, Institut Français de Recherche pour l’Exploitation de la Mer, Brest, France
Source Eos, Transactions American Geophysical Union (0096-3941) (Wiley-Blackwell), 2012-01-03 , Vol. 93 , N. 1 , P. 1-2
DOI 10.1029/2012EO010001
Abstract The southwestern Pacific Ocean region hosts submerged continental margins, ridges, sedimentary basins, and volcanic arcs located around Papua New Guinea, New Zealand, Australia, and Fiji. The geological history of this vast region has remained controversial, and to improve understanding of the processes that controlled its geodynamical evolution, it is essential to place each piece of available data in a regional spatiotemporal framework. To this end, a new map, entitled “Structural Provinces of the Southwest Pacific,” was released by the Geological Survey of New Caledonia in May 2011. The publication consists of two parts: (1) a 40-page booklet of geological notes, which documents the nature and age of each structure and contains an associated list of references; and (2) a 3- x 4-foot poster of a structural map revealing the nature of the basement, location, and type of the main structural features (see simplified version in Figure 1) and the age of formation using the international standards for geological color codes established by the Commission for the Geological Map of the World (CGMW) (see
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