scholarly journals Songpan Garze fold belt: New petrological and geochronological data

1970 ◽  
Vol 5 (7) ◽  
pp. 32
Author(s):  
Audrey Billerot ◽  
Julia De Sigoyer ◽  
Stéphanie Duchêne ◽  
Olivier Vanderhaeghe ◽  
Manuel Pubellier

DOI = 10.3126/hjs.v5i7.1239 Himalayan Journal of Sciences Vol.5(7) (Special Issue) 2008 p.32

1970 ◽  
Vol 5 (7) ◽  
pp. 111-112
Author(s):  
B Rajendra Prasad ◽  
V Vijaya Rao ◽  
HC Tewari

DOI = 10.3126/hjs.v5i7.1301 Himalayan Journal of Sciences Vol.5(7) (Special Issue) 2008 p.111-112


1995 ◽  
Vol 90 (6) ◽  
pp. 1381-0 ◽  
Author(s):  
J. L. Walshe ◽  
K. G. McQueen ◽  
S. F. Fox

2009 ◽  
Vol 60 (3) ◽  
pp. 205-212 ◽  
Author(s):  
Fritz Finger ◽  
Axel Gerdes ◽  
Miloš René ◽  
Gudrun Riegler

The Saxo-Danubian Granite Belt: magmatic response to post-collisional delamination of mantle lithosphere below the southwestern sector of the Bohemian Massif (Variscan orogen)On the basis of the synchronicity of geochronological data and the similarity of granite types, it is proposed that the mid-Carboniferous Fichtelgebirge/Erzgebirge Batholith in the Saxothuringian Zone of the central European Variscan Fold Belt and the South Bohemian Batholith in the Moldanubian Zone (including the intervening Oberpfalz and Bavarian Forest granite areas) belong to one coherent and cogenetic, ca. 400 km long plutonic megastructure. Unlike older (syn-collisional) plutonic structures in the Bohemian Massif, this Saxo-Danubian Granite Belt (nov. nom.) has developed discordant to the Devonian/Early Carboniferous collision-related tectonic architecture of the Bohemian Massif. It is argued that the Saxo-Danubian Granite Belt formed in response to a post-collisional detachment of lithospheric mantle below the south-western sector of the Bohemian Massif.


1997 ◽  
Vol 34 (6) ◽  
pp. 833-847 ◽  
Author(s):  
Nicholas Culshaw ◽  
Montserrat Liesa

Shear zones and northwest-verging folds define a 30 km wide belt of deformation that overprints the Acadian fold belt and telescopes isograds in the Meguma Zone in southwest Nova Scotia. The shear zones appear to form a linked system that accommodated convergence-dominated transpression of the Meguma Zone against an irregular Avalon boundary. Available geochronological data indicate a Mid-Carboniferous (Alleghanian–Variscan) age for the overprinting deformation. The Mid-Carboniferous basement reactivation in southwest Nova Scotia is likely coeval with deformation of Carboniferous strata and reactivation of basement structures (Meguma Group) in the northern Meguma Zone. Together, these Mid-Carboniferous structures may define a wide belt of Alleghanian–Variscan deformation across the northwest (cratonward) margin of the Meguma Zone.


2020 ◽  
Vol 11 (4) ◽  
pp. 672-677
Author(s):  
A. Yu. Kadashnikova ◽  
A. A. Sorokin ◽  
A. V. Ponomarchuk ◽  
A. V. Travin ◽  
V. A. Ponomarchuk

In our isotope-geochronological study, the age of ore metasomatites of the Unglichikan gold deposit is determined at 140–136 Ma. Magmatism of this age is absent in the study area, and it is thus unreasonable to relate the ore mineralization in the Unglichikan deposit to any magmatic process. We conclude that in the mobilization and redistribution of the ore material and the formation of the Unglichikan deposit, a significant role was played by dislocation processes accompanied by hydrothermal activity during the final stages of orogenesis in the Mongol-Okhotsk belt.


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