Tertiary volcanism in the Italian Alps (Giudicarie fault zone, NE Italy): insight for double alpine magmatic arc

2014 ◽  
Vol 133 (1) ◽  
pp. 63-84 ◽  
Author(s):  
Silvana Martin ◽  
Patrizia Macera
Keyword(s):  
Fault Zone ◽  
Italian Alps ◽  
Magmatic Arc ◽  
Ne Italy

scholarly journals Structural evolution of a crustal-scale seismogenic fault in a magmatic arc: The Bolfin Fault Zone (Atacama Fault System)

2021 ◽  
Author(s):  
Simone Masoch ◽  
Rodrigo Gomila ◽  
Michele Fondriest ◽  
Erik Jensen ◽  
Tom Mitchell ◽  
...  
Keyword(s):  
Fault Zone ◽  
Large Scale ◽  
Damage Zone ◽  
Structural Evolution ◽  
Crystalline Basement ◽  
Fault System ◽  
Fault Mechanics ◽  
Seismogenic Fault ◽  
Magmatic Arc ◽  
Atacama Fault System

<p>The nucleation and evolution of major crustal-scale seismogenic faults in the crystalline basement as well as the process of strain localization represent a long-standing, but poorly understood, issue in structural geology and fault mechanics. Here, we addressed the spatio-temporal evolution of the Bolfin Fault Zone (BFZ), a >40-km-long exhumed seismogenic splay fault of the 1000-km-long strike-slip Atacama Fault System. The BFZ has a sinuous fault trace across the Mesozoic magmatic arc of the Coastal Cordillera (Northern Chile). Seismic faulting occurred at 5-7 km depth and ≤ 270 °C in a fluid-rich environment as recorded by extensive propylitic alteration and epidote-chlorite veining. The ancient (125-118 Ma) seismicity is attested by the widespread occurrence of pseudotachylytes both in the fault core and in the damage zone. Field geological surveys indicate nucleation of the BFZ on precursory geometrical anisotropies represented by magmatic foliation of plutons (northern and central segments) and andesitic dyke swarms (southern segment) within the heterogeneous crystalline basement. Faulting exploited the segments of precursory anisotropies that were favorably oriented with respect to the long-term stress field associated with the oblique ancient subduction. The large-scale sinuous geometry of the BFZ may result from linkage of these anisotropy-pinned segments during fault growth. This evolution may provide a model to explain the complex fault pattern of the crustal-scale Atacama Fault System.</p>

scholarly journals Structural evolution of a crustal‐scale seismogenic fault in a magmatic arc: The Bolfin Fault Zone (Atacama Fault System)

Tectonics ◽  
2021 ◽  
Author(s):  
Simone Masoch ◽  
Rodrigo Gomila ◽  
Michele Fondriest ◽  
Erik Jensen ◽  
Thomas Mitchell ◽  
...  
Keyword(s):  
Fault Zone ◽  
Structural Evolution ◽  
Fault System ◽  
Seismogenic Fault ◽  
Magmatic Arc ◽  
Atacama Fault System

scholarly journals Structural evolution of a crustal-scale seismogenic fault in a magmatic arc: The Bolfin Fault Zone (Atacama Fault System)

2021 ◽  
Author(s):  
Simone Masoch ◽  
Rodrigo Gomila ◽  
Michele Fondriest ◽  
Erik Jensen ◽  
Thomas Matthew Mitchell ◽  
...  
Keyword(s):  
Fault Zone ◽  
Structural Evolution ◽  
Fault System ◽  
Seismogenic Fault ◽  
Magmatic Arc ◽  
Atacama Fault System

Contemporaneous plutonism and strike-slip faulting: A case study from the Tonale fault zone north of the Adamello pluton (Italian Alps)

Tectonics ◽  
2004 ◽  
Vol 23 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
M. Stipp ◽  
B. Fügenschuh ◽  
L. P. Gromet ◽  
H. Stünitz ◽  
S. M. Schmid
Keyword(s):  
Fault Zone ◽  
Strike Slip ◽  
Italian Alps

Numerical modeling to well-head protection area delineation, an example in Veneto Region (NE Italy)

2015 ◽  
Vol 35 ◽  
pp. 232-235 ◽  
Author(s):  
Leonardo Piccinini ◽  
Paolo Fabbri ◽  
Marco Pola ◽  
Enrico Marcolongo ◽  
Alessia Rosignoli
Keyword(s):  
Numerical Modeling ◽  
Veneto Region ◽  
Ne Italy ◽  
Head Protection ◽  
Protection Area

Studi Awal Geologi di Daerah Beruang Kanan Kabupaten Gunung Mas Propinsi Kalimantan Tengah

PROMINE ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 1-11
Author(s):  
Retno Anjarwati ◽  
Arifudin Idrus ◽  
Lucas Donny Setijadji
Keyword(s):  
Gold Mineralization ◽  
Volcanic Rocks ◽  
Gold Deposits ◽  
Central Kalimantan ◽  
Magmatic Arc ◽  
Tertiary Sediment ◽  
Copper Gold ◽  
Regional Tectonic ◽  
Mineralization Processes ◽  
High Yields

The regional tectonic conditions of the KSK Contract of Work are located in the mid-Tertiary magmatic arc (Carlile and Mitchell, 1994) which host a number of epithermal gold deposits (eg, Kelian, Indon, Muro) and significant prospects such as Muyup, Masupa Ria, Gunung Mas and Mirah. Copper-gold mineralization in the KSK Contract of Work is associated with a number of intrusions that have occupied the shallow-scale crust at the Mesozoic metamorphic intercellular junction to the south and continuously into the Lower Tertiary sediment toward the water. This intrusion is interpreted to be part of the Oligocene arc of Central Kalimantan (in Carlile and Mitchell 1994) Volcanic rocks and associated volcanoes are older than intrusions, possibly aged Cretaceous and exposed together with all three contacts (Carlile and Mitchell, 1994) some researchers contribute details about the geological and mineralogical background, and some papers for that are published for the Beruang Kanan region and beyond but no one can confirm the genesis type of the Beruang Kanan region The mineralization of the Beruang Kanan area is generally composed by high yields of epithermal sulphide mineralization. with Cu-Au mineralization This high epithermal sulphide deposition coats the upper part of the Cu-Au porphyry precipitate associated with mineralization processes that are generally controlled by the structure

Shear strength behavior of Mont Terri Opalinus Claystone in fault zone

2015 ◽  
Vol 10 (1) ◽  
pp. 31-38
Author(s):  
Ildikó Buocz ◽  
Nikoletta Rozgonyi-Boissinot ◽  
Ákos Török
Keyword(s):  
Shear Strength ◽  
Fault Zone ◽  
Strength Behavior ◽  
Mont Terri

Ultra-High-Resolution 3D (UHR3D) Seismic Survey - Application to Hinagu Fault Zone, Yatsushiro Sea, Kyushu, Japan -

2018 ◽  
Vol 71 (0) ◽  
pp. 33-42
Author(s):  
Shigeru Ino ◽  
Shigeyuki Suda ◽  
Hidekuni Kikuchi ◽  
Shiro Ohkawa ◽  
Shintaro Abe ◽  
...  
Keyword(s):  
High Resolution ◽  
Fault Zone ◽  
Seismic Survey ◽  
Yatsushiro Sea
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