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This memoir summarizes the current knowledge of New Caledonia’s geology, geodynamic evolution, and mineral resources, based on published and unpublished information. It comprises 10 research papers, each addressing a particular geological assemblage or topic. After an introductory chapter, and a review of the published geodynamic models of evolution of the SW Pacific, chapters 3 to 5 focus on the main geological assemblages of Grande Terre: the Pre-Late Cretaceous basement terranes, the Late Cretaceous to Eocene cover, and the Eocene subduction-obduction complex, one of the largest and best-preserved in the world. Chapter 6 is devoted to the Loyalty Islands and Ridge. Chapter 7 deals with the mostly terrestrial post-obduction units including regolith. Chapter 8 deals with palaeobiogeography and discuss plausible scenarios of biotic evolution. Chapters 9 and 10 provide an comprehensive review of New Caledonia’s mineral resources. The volume will interest stratigraphers, sedimentologists, marine geologists, palaeontologists, palaeogeographers, igneous and metamorphic petrologists, geochemists, geochronologists, and specialists in tectonics, geodynamic evolution, regolith, ophiolites, and economic geology.
By D. B. Spears and J. D. Murray, 34 x 38-inch color 1:24,000-scale geologic map, 2013. This map of the Caledonia 7.5-minute quadrangle in Fluvanna, Goochland, and Louisa counties, Virginia shows the distribution of Mesozoic-age igneous rocks and Paleozoic to Proterozoic-age metamorphic rocks in map and cross-section. Modern alluvium and river terrace deposits are shown. A table listing historical mine sites in the area is provided. Online only.
This volume focuses on the Canadian Appalachian region. The chapter on the East Greenland Caledonides stands alone and there is no attempt to integrate the geological accounts of the two far removed regions. Rocks of the Canadian Appalachian region are described under four broad temporal divisions: lower Paleozoic and older, middle Paleozoic, upper Paleozoic, and Mesozoic. The rocks of these temporal divisions define geographic zones, belts, basins, and graben, respectively. The area is of special interest because so many modern concepts of mountain building are based on Appalachian rocks & structures.
Description of the results of a geologic mapping project conducted from 1973-79 in the Annidale-Nerepis area of southern New Brunswick to delineate the major rock units in the area and to show the distribution of metallic mineral deposits, thus providing an accurate exploration guide.