Geochronology and geochemistry of the T ongcheng ultrapotassic hypabyssal intrusions at the south‐western margin of the O rdos B lock, C hina: Constraints on the geodynamic processes beneath the N orth C hina C raton

2018 ◽  
Vol 54 (2) ◽  
pp. 819-834 ◽  
Author(s):  
Huan Xu ◽  
Jin‐hai Luo ◽  
Zhan‐li Ren ◽  
Guan‐xu Chen ◽  
Yi‐fei Li ◽  
...  
Keyword(s):  
The South ◽  
Western Margin ◽  
Hypabyssal Intrusions ◽  
Geodynamic Processes

scholarly journals The formation of Neoarchean continental crust in the south-east Superior Craton by two distinct geodynamic processes

2021 ◽  
Vol 356 ◽  
pp. 106104
Author(s):  
D.R. Mole ◽  
P.C. Thurston ◽  
J.H. Marsh ◽  
R.A. Stern ◽  
J.A. Ayer ◽  
...  
Keyword(s):  
Continental Crust ◽  
The South ◽  
Geodynamic Processes ◽  
Superior Craton

scholarly journals Thrusting, exhumation and basin fill on the western margin of the South China block during India-Asian collision

2018 ◽  
Author(s):  
Kai Cao ◽  
Guocan Wang ◽  
Philippe Hervé Leloup ◽  
Wei Mahéo ◽  
Yadong Xu ◽  
...  
Keyword(s):  
South China ◽  
South China Block ◽  
The South ◽  
Western Margin ◽  
Basin Fill

Chapter 3.2b Bransfield Strait and James Ross Island: petrology

2021 ◽  
pp. M55-2018-37 ◽  
Author(s):  
Karsten M. Haase ◽  
Christoph Beier
Keyword(s):  
Antarctic Peninsula ◽  
South Shetland Island ◽  
The South ◽  
Bransfield Strait ◽  
Geodynamic Processes ◽  
James Ross Island ◽  
South Shetland Trench ◽  
Low Degrees ◽  
Back Arc ◽  
The Antarctic

AbstractYoung volcanic centres of the Bransfield Strait and James Ross Island occur along back-arc extensional structures parallel to the South Shetland island arc. Back-arc extension was caused by slab rollback at the South Shetland Trench during the past 4 myr. The variability of lava compositions along the Bransfield Strait results from varying degrees of mantle depletion and input of a slab component. The mantle underneath the Bransfield Strait is heterogeneous on a scale of approximately tens of kilometres with portions in the mantle wedge not affected by slab fluids. Lavas from James Ross Island east of the Antarctic Peninsula differ in composition from those of the Bransfield Strait in that they are alkaline without evidence for a component from a subducted slab. Alkaline lavas from the volcanic centres east of the Antarctic Peninsula imply variably low degrees of partial melting in the presence of residual garnet, suggesting variable thinning of the lithosphere by extension. Magmas in the Bransfield Strait form by relatively high degrees of melting in the shallow mantle, whereas the magmas some 150 km further east form by low degrees of melting deeper in the mantle, reflecting the diversity of mantle geodynamic processes related to subduction along the South Shetland Trench.

Les grands traits d'une structure nouvelle proposee pour le massif de Sainte-Victoire

1964 ◽  
Vol S7-VI (4) ◽  
pp. 545-553 ◽  
Author(s):  
Fernand Touraine
Keyword(s):  
Upper Cretaceous ◽  
Middle Miocene ◽  
Middle Eocene ◽  
Normal Faulting ◽  
The South ◽  
Southern France ◽  
Western Margin ◽  
Thrust Faulting ◽  
Differential Movement

Abstract The Sainte-Victoire mountain in southern France has been considered the overturned southern limb of the Vauvenargues anticline, but the structure east of the Delubre fault is complicated by an oblique fold. The western margin is concealed by transgressive Tortonian (middle Miocene) beds covering the plateau of Beaumettes. The anticline probably is upper Cretaceous. Folding was renewed in the upper Lutetian (middle Eocene), and resulted in overturning and thrust faulting of the south limb. Subsequent normal faulting compartmented the mass, resulting in selective differential movement of blocks as horsts and grabens. The term piano keys structure is given to this type of structure.

scholarly journals Use of U-isotopes in exploring groundwater flow and inter-aquifer leakage in the south-western margin of the Great Artesian Basin and Arckaringa Basin, central Australia

2018 ◽  
Vol 98 ◽  
pp. 331-344 ◽  
Author(s):  
Stacey C. Priestley ◽  
Timothy E. Payne ◽  
Jennifer J. Harrison ◽  
Vincent E.A. Post ◽  
Paul Shand ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
The South ◽  
Artesian Basin ◽  
Western Margin ◽  
Great Artesian Basin ◽  
Central Australia

scholarly journals Seasonal and spatial variability of coccolithophore export production at the South-Western margin of Crete (Eastern Mediterranean)

2009 ◽  
Vol 71 (3-4) ◽  
pp. 131-147 ◽  
Author(s):  
E. Malinverno ◽  
M.V. Triantaphyllou ◽  
S. Stavrakakis ◽  
P. Ziveri ◽  
V. Lykousis
Keyword(s):  
Spatial Variability ◽  
Eastern Mediterranean ◽  
The South ◽  
Western Margin ◽  
Export Production
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