Active fault segmentation in Northern Tunisia

2020 ◽  
Vol 139 ◽  
pp. 104146 ◽  
Author(s):  
S. Gaidi ◽  
G. Booth-Rea ◽  
F. Melki ◽  
W. Marzougui ◽  
P. Ruano ◽  
...  
2018 ◽  
Vol 166 ◽  
pp. 136-151 ◽  
Author(s):  
Selim Özalp ◽  
Ömer Emre ◽  
Fuat Şaroğlu ◽  
Volkan Özaksoy ◽  
Hasan Elmacı ◽  
...  

1951 ◽  
Vol S6-I (7) ◽  
pp. 381-388
Author(s):  
Jean Bolze ◽  
Hans Schneiderhoehn

Abstract The hydrothermal sphalerite- galena-pyrite deposits on the flanks of the Triassic Fedj el Adoun diapir in the Teboursouk mountains of northern Tunisia, post-Pliocene in age, are controlled structurally by two principal fault directions, one parallel to the diapir contact and the other perpendicular to it. Microscopic evidence indicates very low-temperature conditions of mineralization, with abnormal paragenesis of the three sulfides--first galena, then sphalerite, then marcasite-pyrite. The origin is secondary, resulting from solution and redeposition of material derived from hydrothermal ores in basement rocks, with transportation of the lead and zinc by complex chlorides. The diapirism and mineralization are closely related, having a common cause in an active fault zone. Furthermore, the presence of the diapir has affected the ore deposition in two ways--mechanically, by opening and maintaining channelways, and chemically by maintaining the salinity of the solutions.


2007 ◽  
Vol 43 (3) ◽  
pp. 415
Author(s):  
Athanassios Ganas ◽  
Stefan Shanov ◽  
George Drakatos ◽  
Nikolai Dobrev ◽  
Sotiris Sboras ◽  
...  

Tectonics ◽  
2009 ◽  
Vol 28 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Michiharu Ikeda ◽  
Shinji Toda ◽  
Shuji Kobayashi ◽  
Yuki Ohno ◽  
Naoki Nishizaka ◽  
...  

2005 ◽  
Vol 40 (2-3) ◽  
pp. 316-333 ◽  
Author(s):  
Ganas Athanassios ◽  
Shanov Stefan ◽  
Drakatos George ◽  
Dobrev Nikolai ◽  
Sboras Sotiris ◽  
...  

2008 ◽  
Vol 30 (1) ◽  
pp. 73-83 ◽  
Author(s):  
Văn Đức Tùng ◽  
Trần Văn Thắng
Keyword(s):  

Characteristics of active fault and neotectonic in Na Pheo - Nam Ty area


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yan-Hua Ma ◽  
Xian Du ◽  
Lin-Feng Gou ◽  
Si-Xin Wen

AbstractIn this paper, an active fault-tolerant control (FTC) scheme for turbofan engines subject to simultaneous multiplicative and additive actuator faults under disturbances is proposed. First, a state error feedback controller is designed based on interval observer as the nominal controller in order to achieve the model reference rotary speed tracking control for the fault-free turbofan engine under disturbances. Subsequently, a virtual actuator based reconfiguration block is developed aiming at preserving the consistent performance in spite of the occurrence of the simultaneous multiplicative and additive actuator faults. Moreover, to improve the performance of the FTC system, the interval observer is slightly modified without reconstruction of the state error feedback controller. And a theoretical sufficiency criterion is provided to ensure the stability of the proposed active FTC system. Simulation results on a turbofan engine indicate that the proposed active FCT scheme is effective despite of the existence of actuator faults and disturbances.


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