Structural analysis of sheath folds and geochronology in the Cuonadong Dome, southern Tibet, China: New constraints on the timing of the South Tibetan detachment system and its relationship to North Himalayan Gneiss Domes

Terra Nova ◽  
2020 ◽  
Vol 32 (4) ◽  
pp. 300-323 ◽  
Author(s):  
Jiangang Fu ◽  
Guangming Li ◽  
Genhou Wang ◽  
Linkui Zhang ◽  
Wei Liang ◽  
...  
Keyword(s):  
Structural Analysis ◽  
The South ◽  
Southern Tibet ◽  
Gneiss Domes

La zonation structurale des dômes gneissiques. Un exemple : le massif de Saint-Malo (Massif armoricain, France)

1977 ◽  
Vol 14 (8) ◽  
pp. 1697-1707 ◽  
Author(s):  
Jean-Pierre Brun
Keyword(s):  
Structural Analysis ◽  
Dynamic Model ◽  
Experimental Models ◽  
Gneiss Dome ◽  
Gneiss Domes

The Saint-Malo massif provides an example of a gneiss dome with a migmatitic core. The results of a structural analysis are used to describe a structural zonation around the migmatitic core, and a dynamic model of the massif is proposed. A comparison of these results with experimental models of gneiss domes shows that this zonation is the product of diapirism.

scholarly journals Eocene high grade metamorphism and crustal anatexis in the North Himalaya Gneiss Domes, Southern Tibet

2011 ◽  
Vol 57 (6) ◽  
pp. 639-650 ◽  
Author(s):  
LiE Gao ◽  
LingSen Zeng ◽  
KeJia Xie
Keyword(s):  
High Grade ◽  
Crustal Anatexis ◽  
Southern Tibet ◽  
Grade Metamorphism ◽  
Gneiss Domes ◽  
The North ◽  
High Grade Metamorphism ◽  
North Himalaya

scholarly journals ’n Nota op die aanwending van 'tradisies' in die Suid-Afrikaanse struktuuranalitiese eksegese van die Ou Testament

1996 ◽  
Vol 17 (1) ◽  
pp. 106-113
Author(s):  
C. J. S. Lombaard
Keyword(s):  
Structural Analysis ◽  
South African ◽  
Old Testament ◽  
The South ◽  
The Way

In this article it is argued that the way in which the term tradition is used in the South African structural analysis of the Old Testament is in fact not true to the meaning this term had for G. von Rad. This is because the identification of traditions is not followed up with historically relating the occurrences o f a tradition to one another. The South African structural analysis cannot therefore rightly claim to add a diachronical dimension to its immanent approach by using traditions in this way.

Déformation coaxiale en bordure de la discontinuité structurale de Lyndhurst, sous-province de l'Abitibi

1992 ◽  
Vol 29 (4) ◽  
pp. 783-792 ◽  
Author(s):  
Jean-Yves Labbé ◽  
Real Daigneault ◽  
Pierre A. Cousineau
Keyword(s):  
Structural Analysis ◽  
Deformation Zone ◽  
Thrust Fault ◽  
The South ◽  
Mesoscopic Scale ◽  
The North ◽  
The Poor ◽  
Crenulation Cleavage ◽  
Deformation Regime ◽  
East West

The Lyndhurst discontinuity is a major east–west structure located some 40 km north of Rouyn–Noranda. It separates the rhyolitic and sedimentary units of the Hunter Mine Group to the north from the basalts of the Kinojévis Group to the south. Evidence of deformation is observed only in the rhyolites and sediments along the south edge of the Hunter Mine Group. The deformation zone is approximately 1 km wide and is continuous for about 30 km. The Kinojévis Group rocks are not deformed. Deformed rhyolites show a strong sericite and chlorite alteration of hydrothermal origin. The competency of the rhyolites is significantly reduced by the presence of these phyllosilicates, which results in the deformation being preferentially localized in the more altered rocks. Competency contrasts observed on a mesoscopic scale are also valid on the microscopic and megascopic scales. The structural analysis of the deformation zone reveals different arrays that characterize three distinct sectors. These arrays reflect competency contrasts of the lithology and a crenulation cleavage. The stretching lineation is generally steeply plunging. Although the deformation seems significant in a zone contiguous to the Lyndhurst discontinuity, the poor development of the stretching lineation, the preservation of the original crystalline shapes of phenocrysts in the rhyolites, and the constant symmetry of the pressure shadows suggest a global coaxial deformation. This deformation regime is difficult to reconcile with a compressive fault such as a thrust fault.

Tectoniques superposes et metamorphisme dans la bande cristallophyllienne d'Aracena (province de Huelva, Espagne)

1967 ◽  
Vol S7-IX (1) ◽  
pp. 111-128 ◽  
Author(s):  
Jean Pierre Bard
Keyword(s):  
High Temperature ◽  
Structural Analysis ◽  
Low Pressure ◽  
Second Phase ◽  
The South ◽  
Metamorphic Belt ◽  
Third Phase ◽  
Granitic Intrusion ◽  
Hercynian Orogeny

Abstract Structural analysis of the Paleozoic formations of the Aracena metamorphic belt reveals the presence of four main deformational phases all of which belong to the Hercynian orogeny: a first phase of NW-SE synmetamorphic isoclinal folds overturned toward the southwest and penecontemporaneous with migmatization; a second phase of WNW-ESE orthorhombic folds with axes slightly overturned toward the south-southwest, accompanied by S <sub>2</sub> schistosity fracture and late epizonal granitic intrusion; a third phase of thrusting and shearing toward the south-southwest; a fourth phase of NE-SW displacements measurable in kilometers. Estimation of the geothermal value of the synmetamorphic phase ( nearly equal 80 degrees C/km) places the Aracena belt among the high temperature-low pressure types.

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