Tectonics

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Tectonic evolution of the central Annapurna Range, Nepalese Himalayas
Tectonics - Tập 15 Số 6 - Trang 1264-1291 - 1996
K. V. Hodges, Randall R. Parrish, M. P. Searle
The metamorphic core of the Himalayan orogen, or Greater Himalayan sequence, is a northward tapering prism bound at the bottom by a N dipping family of thrust faults (the Main Central thrust system) and at the top by a N dipping family of normal faults (the South Tibetan detachment system). Research in the central Annapurna Range of Nepal demonstrates a close temporal and spatial associati...... hiện toàn bộ
Kinematics, topography, shortening, and extrusion in the India‐Eurasia collision
Tectonics - Tập 11 Số 6 - Trang 1085-1098 - 1992
Xavier Le Pichon, Marc Fournier, Laurent Jolivet
We examine the problem of partitioning between shortening and extrusion in the India‐Asia collision since 45 Ma. We compute the amount of shortening expected from the kinematics of India's motion with respect to Eurasia, using the reconstruction at collision time to put bounds on the possible amounts of surface loss within Greater India and within Eurasia. We then compute the amounts of su...... hiện toàn bộ
Extension in the Tyrrhenian Sea and shortening in the Apennines as result of arc migration driven by sinking of the lithosphere
Tectonics - Tập 5 Số 2 - Trang 227-245 - 1986
Alberto Malinverno, William B. F. Ryan
Previously proposed models for the evolution of the Tyrrhenian basin‐Apenninic arc system do not seem to satisfactorily explain the dynamic relationship between extension in the Tyrrhenian and compression in the Apennines. The most important regional plate kinematic constraints that any model has to satisfy in this case are: (1) the timing of extension in the Tyrrhenian and compression in ...... hiện toàn bộ
Thrust belt development in the central Apennines (Italy): Northward polarity of thrusting and out‐of‐sequence deformations in the Gran Sasso Chain
Tectonics - Tập 10 Số 5 - Trang 904-919 - 1991
F. Ghisetti, Livio Vezzani
The Lazio‐Abruzzi carbonate platform overrides the outermost sectors of the foreland fold and thrust belt of the central Apennines of Italy along an arcuate thrust front, which swings from E‐W to NNW‐SSE orientation. The E‐W striking, north verging thrust faults of the Gran Sasso cut in their footwall the N‐S oriented, east verging imbricates of the Marche thrust belt and the adjacent Adri...... hiện toàn bộ
Cretaceous tectonic evolution of coastal southern California: Insights from the Catalina Schist
Tectonics - Tập 14 Số 6 - Trang 1290-1308 - 1995
Marty Grove, Gray E. Bebout
The relatively high‐T, high‐P/T, subduction‐related basement in the Southern California Continental Borderland preserves important information regarding the late Mesozoic tectonic evolution of coastal southern California. Integrated petrologic, geochemical, and geochronological study of the subduction‐related Catalina Schist exposed on Santa Catalina Island documents the formation of lawso...... hiện toàn bộ
Interpreting the style of faulting and paleoseismicity associated with the 1897 Shillong, northeast India, earthquake: Implications for regional tectonism
Tectonics - Tập 23 Số 4 - 2004
C. P. Rajendran, Kusala Rajendran, Bhagawat Pran Duarah, Santanu Baruah, A. Earnest
The 1897 Shillong (Assam), northeast India, earthquake is considered to be one of the largest in the modern history. Although hiện toàn bộ
Deep structure of the continental lithosphere in an unextended orogen: An explosive‐source seismic reflection profile in the Urals (Urals Seismic Experiment and Integrated Studies (URSEIS 1995))
Tectonics - Tập 17 Số 2 - Trang 143-157 - 1998
David Steer, J. H. Knapp, L. D. Brown, Helmut Echtler, Dennis Brown, R.G. Berzin
Explosive‐source near‐vertical seismic reflection data from the Urals Seismic Experiment and Integrated Studies (URSEIS) profile displays an image of orogenic lithosphere to depths of 225 km. The reflective crustal section is characterized by dipping, crustal‐scale shear zones, and a pronounced crustal root that show no evidence of overprinting by extension and are preserved since late Pal...... hiện toàn bộ
Initiation of crustal-scale thrusts triggered by metamorphic reactions at depth: Insights from a comparison between the Himalayas and Scandinavian Caledonides
Tectonics - Tập 29 Số 5 - Trang n/a-n/a - 2010
Loïc Labrousse, György Hetényi, Hugues Raimbourg, Laurent Jolivet, Torgeir B. Andersen
Rift asymmetry and continental uplift
Tectonics - Tập 22 Số 3 - 2003
Carlo Doglioni, Eugenio Carminati, Enrico Bonatti
The topography of ocean ridges and rifts show a distinct asymmetry. The eastern sides of the East Pacific Rise, the Mid‐Atlantic Ridge, and the NW Indian Ridge are, on average, 100–300 m more elevated than the conjugate flank to the west. The asymmetry is maintained when bathymetry is plotted versus the square root of crustal age. A comparable topographic asymmetry occurs in the Red Sea an...... hiện toàn bộ
Crustal structure of the transpressional Variscan orogen of SW Iberia: SW Iberia deep seismic reflection profile (IBERSEIS)
Tectonics - Tập 22 Số 6 - 2003
José Fernando Simancas, R. Carbonell, Francisco González Lodeiro, Andrés Pérez Estaún, Christopher Juhlin, P. Ayarza, A. Kashubin, António Azor, D. Martínez Poyatos, Gabriel Ruiz de Almodóvar Sel, Emilio Soler Pascual, R. Sáez, Inmaculada Expósito
IBERSEIS, a 303 km long (20 s) deep seismic reflection profile, was acquired across the Variscan belt in SW Iberian Peninsula. The acquisition parameters were designed to obtain a high‐resolution crustal‐scale image of this orogen. The seismic profile samples three major tectonic terranes: the South Portuguese Zone, the Ossa‐Morena Zone, and the Central Iberian Zone, which were accreted in...... hiện toàn bộ
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