Supercontinent cycles through earth history / edited by Z. X. Li, D. A. D. Evans and J. B. Murphy.

Format:

Book

Contributor:

Li, Z. X., editor.

Evans, D. A. D., editor.

Murphy, J. B. (J. Brendan), editor.

Geological Society of London, issuing body.

Series:

Geological Society special publication ; no. 424.

Geological Society special publication

Language:

English

Subjects (All):

Continents.

Pangaea (Supercontinent).

Rodinia (Supercontinent).

Physical Description:

297 pages : illustrations (chiefly color), maps (chiefly color) ; 26 cm.

Place of Publication:

London : Geological Society, 2016.

Summary:

The supercontinent-cycle hypothesis attributes planetary-scale episodic tectonic events to an intrinsic self-organizing mode of mantle convection, governed by the buoyancy of continental lithosphere that resists subduction during the closure of old ocean basins, and the consequent reorganization of mantle convection cells leading to the opening of new ocean basins. Characteristic timescales of the cycle are typically 500 to 700 million years. Proposed spatial patterns of cyclicity range from hemispheric (introversion) to antipodal (extroversion), to precisely between those end members (orthoversion). Advances in our understanding can arise from theoretical or numerical modelling, primary data acquisition relevant to continental reconstructions, and spatiotemporal correlations between plate kinematics, geodynamic events and palaeoenvironmental history. The palaeogeographic record of supercontinental tectonics on Earth is still under development. The contributions in this Special Publication provide snapshots in time of these investigations and indicate that Earth's palaeogeographic record incorporates elements of all three end-member spatial patterns.

Contents:

Four-dimensional context of Earth's supercontinents

Palaeomagnetism, geochronology and geochemistry of the Palaeoproterozoic Rabbit Creek and Powder River dyke swarms: implications for Wyoming in supercraton Superia

Metallogeny and its link to orogenic style during the Nuna supercontinent cycle

Palaeomagnetism and U-Pb geochronology of c. 1570 Ma intrusives from Åland archipelago, SW Finland - implications for Nuna

Using palaeomagnetism to determine late Mesoproterozoic palaeogeographic history and tectonic relations of the Sinclair terrane, Namaqua orogen, Namibia

Palaeomagnetic and geochronological data from Late Mesoproterozoic redbed sedimentary rocks on the western margin of Kalahari craton

Return to Rodinia? Moderate to high palaeolatitude of the São Francisco/Congo craton at 920 Ma

Palaeomagnetism and geochronology of mid-Neoproterozoic Yanbian dykes, South China: implications for a c. 820-800 Ma true polar wander event and the reconstruction of Rodinia

Tectonostratigraphic evolution of the c. 780-730 Ma Beck Spring Dolomite: Basin Formation in the core of Rodinia

An eastern Mediterranean analogue for the Late Palaeozoic evolution of the Pangaean suture zone in SW Iberia.

Notes:

Includes bibliographical references and index.

ISBN:

9781862397330

1862397333

OCLC:

944210349