Inversion of moment tensor focal mechanisms for active stresses around the microcontinent Iberia:: Tectonic implications

被引：111

作者：

de Vicente, G. ^{[1
]}

Cloetingh, S. ^{[2
]}

Munoz-Martin, A. ^{[1
]}

Olaiz, A. ^{[1
]}

Stich, D. ^{[3
]}

Vegas, R. ^{[1
]}

Galindo-Zaldivar, J. ^{[4
]}

Fernandez-Lozano, J. ^{[1
]}

机构：

[1] Univ Complutense, Dept Geodinam, Grp Invest Tectonofis Aplicada, ES-28040 Madrid, Spain

[2] Vrije Univ Amsterdam, Fac Earth & Life Sci, NL-1081 HV Amsterdam, Netherlands

[3] Ist Nazl Geofis & Vulcanol, Sez Bologna, I-40128 Bologna, Italy

[4] Univ Granada, Dept Geodinam, E-18071 Granada, Spain

来源：

TECTONICS | 2008年 / 27卷 / 01期

关键词：

D O I：

10.1029/2006TC002093

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The Iberian microcontinent and its connected oceanic crust are affected by deformations related to the Eurasian-African plate boundary. Active stress inversions from populations of moment tensor focal mechanisms have been performed around and inside the Iberian peninsula, using a total of 213 moment tensor estimates. Main results are as follows: (1) The tensorial solutions show better consistency and lower misfits compared to those obtained previously from first P arrival focal mechanisms. (2) Along the Eurasia-Africa western boundary, the type of active stresses progressively changes easternward from triaxial extension to uniaxial compression along the Terceira Ridge, the Gloria Fault zone, and the Gulf of Cadiz. (3) In the Betics-Alboran-Rif zone, uniaxial extension predominates with S-hmax N155 degrees E trending. (4) In northern Algeria, uniaxial compression reappears. (5) The Iberian foreland is currently under strike-slip to uniaxial extension tensorial conditions.

引用

页数：22

共 90 条

[71]

[72] KINEMATIC EVOLUTION OF THE TETHYS BELT FROM THE ATLANTIC-OCEAN TO THE PAMIRS SINCE THE TRIASSIC [J].

SAVOSTIN, LA ;

SIBUET, JC ;

ZONENSHAIN, LP ;

LEPICHON, X ;

ROULET, MJ .

TECTONOPHYSICS, 1986, 123 (1-4) :1-35

[73] Stress orientation and tectonic regime in the northwestern Valencia Trough from borehole data [J].

Schindler, A ;

Jurado, MJ ;

Müller, B .

TECTONOPHYSICS, 1998, 300 (1-4) :63-77

[74] Kinematics of the Western Africa-Eurasia plate boundary from focal mechanisms and GPS data [J].

Serpelloni, E. ;

Vannucci, G. ;

Pondrelli, S. ;

Argnani, A. ;

Casula, G. ;

Anzidei, M. ;

Baldi, P. ;

Gasperini, P. .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2007, 169 (03) :1180-1200

[75] Pyrenean orogeny and plate kinematics [J].

Sibuet, JC ;

Srivastava, SP ;

Spakman, W .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2004, 109 (B8) :B081041-18

[76]

SIMONGROMEZ JL, 2004, GEOLOGIA ESPANA, P614

[77] MOTION OF IBERIA SINCE THE LATE JURASSIC - RESULTS FROM DETAILED AEROMAGNETIC MEASUREMENTS IN THE NEWFOUNDLAND BASIN [J].

SRIVASTAVA, SP ;

ROEST, WR ;

KOVACS, LC ;

OAKEY, G ;

LEVESQUE, S ;

VERHOEF, J ;

MACNAB, R .

TECTONOPHYSICS, 1990, 184 (3-4) :229-260

[78] Source analysis of the Mw 6.3 2004 Al Hoceima earthquake (Morocco) using regional apparent source time functions -: art. no. B06306 [J].

Stich, D ;

Mancilla, FD ;

Baumont, D ;

Morales, J .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2005, 110 (B6) :1-13

[79] Crust-mantle coupling in the Gulf of Cadiz (SW-Iberia) [J].

Stich, D ;

Mancilla, FD ;

Morales, J .

GEOPHYSICAL RESEARCH LETTERS, 2005, 32 (13) :1-4

[80] Moment tensor solutions for small and moderate earthquakes in the Ibero-Maghreb region [J].

Stich, D ;

Ammon, CJ ;

Morales, J .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2003, 108 (B3)

← 1 2 3 4 5 6 7 8 9 →