Thermal effects and timing of thrusting in the Moine Thrust zone
- 1 September 1985
- journal article
- Published by Geological Society of London in Journal of the Geological Society
- Vol. 142 (5) , 863-873
- https://doi.org/10.1144/gsjgs.142.5.0863
Abstract
Illite crystallinity studies in the foreland to the Moine thrust belt show a widespread heating event which is interpreted as a thermal response to thrust sheet emplacement. Temperatures reached ~275°C approximately 24 Ma after the main thrusting events. Based on the relationships between syn-thrusting intrusions and the thrust planes, combined with radiometric dates from the Moine sheet, it is argued that movement on the Moine thrust started between 440 and 430 Ma ago. Contractional slip in the Moine thrust belt ceased at about 425 Ma ago and it is proposed that illite metamorphism attained temperatures of ~275° C at about 408 Ma ago.This publication has 33 references indexed in Scilit:
- Shear heating associated with movement along the Alpine Fault, New ZealandPublished by Elsevier ,2003
- Crystal growth in cataclasites: Diagnostic microstructures and implicationsPublished by Elsevier ,2003
- Microstructural and fabric studies from the rocks of the Moine Nappe, Eriboll, NW ScotlandPublished by Elsevier ,2003
- Relationships between marginal thrusting and movement on major, internal shear zones in the Northern Highland Caledonides, ScotlandJournal of Structural Geology, 1985
- The Caledonian thrust and shear zones of N.W. ScotlandJournal of Structural Geology, 1980
- 40Ar-39Ar dating of high pressure metamorphic micas from the Gran Paradiso area (Western Alps): Evidence against the blocking temperature conceptContributions to Mineralogy and Petrology, 1980
- The basal spacing of potassic white micas and facies series variation across the CaledonidesScottish Journal of Geology, 1976
- The petrological and geological significance of theb 0 values of potassic white micas in low-grade metamorphic rocks. An application to the Eastern AlpsTschermaks Mineralogische und Petrographische Mitteilungen, 1972
- XI.—The Evolution of the Scottish Caledonides in Relation to their Isotopic Age PatternTransactions of the Royal Society of Edinburgh, 1970
- Frictional heat during metamorphismLithos, 1968