Tectonophysics

Items from 1 to 14 out of 14 results

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The crustal structure of the Central Mozambique continental margin — Wide-angle seismic, gravity and magnetic study in the Mozambique Channel, Eastern Africa

Volker Thor Leinweber, Frauke Klingelhoefer, Sönke Neben, Christian Reichert, more

Tectonophysics > 2013 > 599 > Complete > 170-196

The continental margin of Mozambique formed during the initial dispersal of Gondwana about 180Ma. Due to the lack of deep seismic and dense potential field data, many details of the timing and geometry of the early breakup in this region remained unknown to date. To close this gap, a research project (MoBaMaSis (“Mozambique Basin Marine Seismic Survey”) with the French research vessel R/V Marion Dufresne...

article

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Tectonophysics > 2013 > 599 > Complete > ii

article

Late Neogene magnetostratigraphy in the western Qaidam Basin (NE Tibetan Plateau) and its constraints on active tectonic uplift and progressive evolution of growth strata

Weilin Zhang, Xiaomin Fang, Chunhui Song, Erwin Appel, more

Tectonophysics > 2013 > 599 > Complete > 107-116

The Qaidam Basin as the largest intermontane basin of the NE Tibetan Plateau is the ideal place to provide constraints on depositional and tectonic patters. To determine its tectonic deformation history and progressive evolution of growth strata we conducted paleomagnetic study on the late-Neogene stratigraphic section in the western Qaidam Basin. A magnetostratigraphic study of the well exposed 805m...

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Multi-stage tectono-magmatic events of the Eastern Kunlun Range, northern Tibet: Insights from U–Pb geochronology and (U–Th)/He thermochronology

Jingen Dai, Chengshan Wang, Jeremy Hourigan, M. Santosh

Tectonophysics > 2013 > 599 > Complete > 97-106

To understand the magmatic and tectonic events in the Eastern Kunlun Range, we conducted systematic zircon U–Pb geochronology, and paired zircon (ZHe) and apatite (AHe) (U–Th)/He themchronology investigations in the central and eastern segments of this range. Zircon U–Pb ages show two-stage magmatic events of Late Silurian and latest Permian–Early Jurassic. ZHe and AHe ages and multi-system thermochronometers...

article

The influence of water and supercritical CO2 on the failure behavior of chalk

E. Liteanu, C.J. Spiers, J.H.P. de Bresser

Tectonophysics > 2013 > 599 > Complete > 157-169

Reduction of compressive strength by injection of water into chalk is a well-known mechanism responsible for increased compaction in chalk reservoirs. This raises the question of whether such effects might be enhanced in the context of long-term storage of CO ₂ or of CO ₂ injection for enhanced oil and gas recovery (EOR/EGR) purposes. Therefore, data regarding the effect of supercritical...

article

Quaternary rupture behavior of the Karakoram Fault and its relation to the dynamics of the continental lithosphere, NW Himalaya–western Tibet

N. Houlié, R.J. Phillips, N. Houlie, R.J. Phillips

Tectonophysics > 2013 > 599 > Complete > 1-7

The Karakoram Fault is a major strike-slip system that partitions strain between the compressional regime of the NW Himalaya and the translational and extensional fault systems of western Tibet. Although seismic and geodetic observations suggest that the fault is currently locked, a high millennial slip rate infers a dominant role in the deformation of western Tibet. We examine all Quaternary data...

article

Buttressing and reverse reactivation of a normal fault in the Jurassic rocks of the Asturian Basin, NW Iberian Peninsula

H. Uzkeda, M. Bulnes, J. Poblet, J.C. García-Ramos, more

Tectonophysics > 2013 > 599 > Complete > 117-134

A detailed structural analysis was carried out on the Jurassic rocks cropping out along the cliffs of La Conejera Inlet (Asturias, Spain). It includes a geological map and a distortion-free cross-section constructed via photogrammetric methods. La Conejera Inlet is located within the Asturian Basin, a Permian–Mesozoic extensional basin partially formed during the opening of the Bay of Biscay. It suffered...

article

Tracing the exhumation history of the Rwenzori Mountains, Albertine Rift, Uganda, using low-temperature thermochronology

Friederike U. Bauer, Ulrich A. Glasmacher, Uwe Ring, Markus Karl, more

Tectonophysics > 2013 > 599 > Complete > 8-28

The Rwenzori Mtns form a striking feature within the Albertine Rift of the East African Rift System. They are made up of a dissected Precambrian metamorphic basement block reaching heights of more than 5km. Applying low-temperature thermochronology a complex exhumation history becomes evident, where rock and surface uplift can be traced from Palaeozoic to Neogene times.Fission-track and (U–Th–Sm)/He...

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Latest Paleozoic–Early Mesozoic basin–range interactions in South Tian Shan (northwest China) and their tectonic significance: Constraints from detrital zircon U–Pb ages

Dongdong Liu, Marc Jolivet, Wei Yang, Ziya Zhang, more

Tectonophysics > 2013 > 599 > Complete > 197-213

Since the Late Cenozoic, the Tian Shan area, as for most ranges in continental Asia is rejuvenated by the far-field effects of the India–Asia collision. However, the tectonic processes that affected the area prior to the Cenozoic are still poorly known, especially in the South Tian Shan block. An extensive record of this earlier tectonic history is provided by the thick Paleozoic to Mesozoic sedimentary...

article

Recent geodynamic and geomorphological analyses of the Diendorf–Čebín Tectonic Zone, Czech Republic

Pavel Roštínský, Lubomil Pospíšil, Otakar Švábenský

Tectonophysics > 2013 > 599 > Complete > 45-66

The Diendorf–Čebín Tectonic Zone (DCTZ) located within the south-eastern margin of the Bohemian Massif is a complex Paleozoic structure reactivated during several phases of unequal thrusting of the Alpine–Carpathian orogenic blocks over the European Platform in the Neogene and Quaternary periods. Recent movement tendencies in its area have been studied through analyses of and correlations between...

article

The structure of an exhumed intraplate seismogenic fault in crystalline basement

Steven A.F. Smith, Andrea Bistacchi, Thomas M. Mitchell, Silvia Mittempergher, more

Tectonophysics > 2013 > 599 > Complete > 29-44

The 600m-thick Gole Larghe Fault Zone (GLFZ) is hosted in jointed crystalline basement and exposed across glacier-polished outcrops in the Italian Alps. Ancient seismicity is attested by the widespread occurrence of cataclasites associated with pseudotachylytes (solidified frictional melts) formed at 9–11km depth and ambient temperatures of 250–300°C. Previous work focused on the southern part of...

article

Structures and high-velocity frictional properties of the Pingxi fault zone in the Longmenshan fault system, Sichuan, China, activated during the 2008 Wenchuan earthquake

Lu Yao, Shengli Ma, Toshihiko Shimamoto, Tetsuhiro Togo

Tectonophysics > 2013 > 599 > Complete > 135-156

This paper reports on the internal structures of the Pingxi fault zone near the northeastern end of the coseismic surface ruptures associated with the 2008 Wenchuan earthquake. The fault zone consists of a 50–80cm wide fault core and several-meter wide fault breccia zones. The fault core contains yellowish gouge (YG), gray-blackish gouge (GBG), black gouge (BG) and gray-blackish fault breccia. A coseismic...

article

An attempt to correct strain data measured with vault-housed extensometers under variations in temperature

Ken'ichi Yamazaki

Tectonophysics > 2013 > 599 > Complete > 89-96

Strain data obtained by vault-housed extensometers have precisions on the order of nanostrains, but they are distorted by variations in temperature, which cause two types of noise: “actual variations” due to the thermo-elastic effect of the Earth's crust, and “false variations” due to the thermal expansion of extensometer, which occurs when the extensometers themselves are subjected to variations...

article

UPb zircon age and geochemical constraints on tectonic evolution of the Paleozoic accretionary orogenic system in the Tongbai orogen, central China

Xiaochun Liu, Bor-ming Jahn, Sanzhong Li, Yongsheng Liu

Tectonophysics > 2013 > 599 > Complete > 67-88

The Tongbai orogen is located in a key tectonic position linking the Qinling orogen to the west and the Dabie-Sulu orogen to the east. This orogen comprises a Paleozoic accretionary orogenic system in the north and a Permo–Triassic collisional orogenic system in the south; hence it may serve as an ideal place to unravel the tectonic evolution from the initial oceanic subduction/accretion to the final...

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599
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2013

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Complete (14)

Keywords

(U–TH)/HE THEMCHRONOLOGY (1)
ACCRETION (1)
ADAMELLO (1)
AFRICA–ANTARCTICA CORRIDOR (1)
ALBERTINE RIFT (1)
ALTERATION (1)
ANISOTROPY (1)
BOHEMIAN MASSIF (1)
BUTTRESSING (1)
CATACLASITE (1)
CHALK (1)
CO2 STORAGE (1)
CONTINENT–OCEAN-BOUNDARY IN THE MOZAMBIQUE CHANNEL (1)
COULOMB STRESS CHANGE (1)
CRUSTAL STRUCTURE OF CENTRAL MOZAMBIQUE CONTINENTAL MARGIN (1)
DATA CORRECTION (1)
DETRITAL ZIRCON (1)
DIENDORF–ČEBÍN TECTONIC ZONE (1)
EAST AFRICAN RIFT SYSTEM (1)
EASTERN KUNLUN RANGE (1)
EXHUMATION HISTORY (1)
FAILURE BEHAVIOR (1)
FALSE VARIATIONS IN STRAIN (1)
FAULT REACTIVATION (1)
FAULT STRUCTURE (1)
FAULT-ZONE STRUCTURES (1)
FISSION-TRACK DATING (1)
FLUID FLOW (1)
FRACTURE DAMAGE (1)
FRACTURE ENERGY (1)
GEOCHEMISTRY (1)
GEODETIC SURVEY (1)
GEOMORPHOLOGICAL ANALYSIS (1)
GEOPHYSICAL RESEARCH (1)
GONDWANA BREAKUP (1)
GROWTH STRATA (1)
HEAT CONDUCTION (1)
HIGH-VELOCITY FRICTION (1)
HIGH-VELOCITY-BODY (1)
HIMALAYA (1)
INTERGRANULAR PRESSURE SOLUTION (1)
INVERSION TECTONICS (1)
JURASSIC (1)
KARAKORAM (1)
KUNLUN FAULT (1)
LONGMENSHAN FAULT SYSTEM (1)
MAGNETOSTRATIGRAPHY (1)
NE TIBETAN PLATEAU (1)
NEOGENE (1)
PALEOTOPOGRAPHY (1)
PINGXI FAULT (1)
PORE COLLAPSE (1)
PROVENANCE (1)
QAIDAM BASIN (1)
RECENT MOVEMENT (1)
REFERENCE TEMPERATURES (1)
ROCK AND SURFACE UPLIFT (1)
SOUTH TIAN SHAN (1)
STRIKE-SLIP (1)
SUBDUCTION (1)
TECTONIC AFFINITY (1)
THERMAL EXPANSION (1)
THERMAL HISTORY MODELLING (1)
THERMOCHRONOLOGY (1)
TIBET (1)
TONGBAI OROGEN (1)
UPB DATING (1)
U–PB DATING (1)
VAULT-HOUSED EXTENSOMETER (1)
WENCHUAN EARTHQUAKE (1)
WIDE-ANGLE SEISMIC DATA (1)
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