Dyke Swarms - Time Markers of Crustal Evolution: Selected Papers of the Fifth International Dyke Conference in Finland, Rovaniemi, Finland, 31 July- 3 Aug 2005 & Fourth International Dyke Conference, Kwazulu-Natal, South Africa 26-29 June 2001

by Hanski; E.

• ISBN13: 9780415398992
• ISBN10: 0415398991
• Format: Hardcover
• Copyright: 2006-09-29
• Publisher: CRC Press

Summary

Dyke swarms are remnants of large igneous provinces, and are pointers of continental break-up events, as well as indicators for ancient continental reconstructions. These global geodynamic aspects are of crucial significance in tectonics, and with recent developments in high-precision age, dating it has become possible to enter these short-lived magmatic events into a global data base. Every five years, scientists have met to consider new results and potential directions relating to the study of igneous dykes. At the Fifth International Dyke Conference, held in Rovaniemi, Finland in August 2005, igneous dykes, with particular attention to mafic dykes and dyke swarms, came under scrutiny. The properties of dykes, from Archean to Miocene, were explored in terms of mineralogy, geochemistry, isotopes, geochronology and paleomagnetics. This is a selection of twelve papers presented in Rovaniemi, together with updates of six papers from the South African meeting in 2001. For those who wish to have a summary of the current international status of igneous dykes, and their significance in interpreting geological and tectonic processes, this book is invaluable.

Table of Contents

Short-lived mantle generated magmatic events and their dyke swarms: The key unlocking Earth's palaeogeographic record back to 2.6 Ga

Giant dyke swarms and the reconstruction of the Canadian Arctic islands, Greenland, Svalbard

The Kopparnüs dyke swarm in Inkoo, southern Finland: new evidence for Jotnian magmatism in the SE Fennoscandian Shield

Paleo- and Mesoproterozoic dyke swarms at Lake Ladoga area, NW Russia - paleomagnetic studies- 1.80-1.75 Ga mafic dyke swarms in the central North China craton: implications for a plume-related break-up event

AMS criteria for determining the azimuth and dip of a subduction zone from a mafic dyke swarm

Development of dyke and sheet swarms controlled by magma supply rate - an example from the Miocene Otoge igneous complex, central Japan

U-Pb baddeleyite ages of Meso and

Neoproterozoic dykes and sills in central Fennoscandia: a review

Mesozoic alkali basalts and felsic rocks in eastern Victoria, Australia

Precambrian mafic dyke swarms, Central Indian Bastar craton: evidence for a temporal evolution of the subcontinental mantle

Sills of the Theron Mountains, Antarctica: evidence for long distance transport of mafic magmas during Gondwana break-up

Structural and AMS study of a Miocene dyke swarm located above the Patagonian subduction

Geochemical correlations between Jurassic gabbros and basaltic rocks in Vestfjella

Spatial distribution and emplacement features of Permo-Carboniferous dykes at the Southwestern margin of the Fennoscandian Shield

Palaeomagnetism of Palaeoproterozoic dolerite dykes in central Finland

The Geology of a Mafic Dyke at Roerkulten, Sverdrupfjella, Western Dronning Maud Land, Antarctica

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