6 edition of Present-day Kinematics at the Azores-gibraltar Plate Boundary As Derived from Gps Observations found in the catalog.
December 31, 2004
by Delft Univ Pr
Written in English
|The Physical Object|
|Number of Pages||202|
Geologic and kinematic constraints on Late Cretaceous to mid Eocene plate boundaries in the southwest Paciﬁc Kara J. Matthewsa,⁎, Simon E. Williamsa, Joanne M. Whittakerb,rMüllera, Maria Setona, Geoffrey L. Clarke a a EarthByte Group, School of Geosciences, The University of Sydney, NSW , Australia b Institute for Marine and Antarctic Studies, University of Tasmania, TAS the Sierra de Aguilar corresponds to the boundary between the Eastern Cordillera to the east and the Puna to the west. Age of the structures Structures developed from Paleozoic to almost present day occur in the surveyed area. Three main tectonic events are identified: a) a Cenozoic contractional event that corresponds to the Andean orogeny and is.
ES Observe animations of processes that occur along plate boundaries. Click the images to see the animations. A kinematic GPS [43,44] with dual frequency receivers and oriented by an inertial measurement unit (roll accuracy: °, pitch accuracy: °) and one GPS ground station were used to locate the entire LiDAR dataset. The GPS ground station (Parrocchia, 45°46′″ N, 11°7′″ E), which was located 6–10 km north-west of.
The plate tectonic idealization of rigid plates and narrow plate boundaries is inconsistent with seismicity and data recording the motion of the Indo-Australian plate (Fig. 1A). The first indications of an inconsistency of plate motion data with a single rigid Indo-Australian plate were the difficulties in simultaneously fitting data along the three mid-ocean ridge (MOR) systems that meet at. The largest earthquakes often cause rupture for hundreds of kilometres along a single subducting plate, and often begin or end at structural boundaries on the overriding plate.
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In summary, the Azores–Gibraltar plate boundary is very well defined in its western and central segments, whereas east of the Madeira Tore Rise there is a lack of consensus on its geometry and location as inferred from the variety of models proposed so far (e.g.,,).Moreover, the kinematics along the plate boundary are consistent with a counterclockwise rotation of the African plate Cited by: The use of precise space-geodetic techniques to study the present-day displacement field associated with the Azores Triple Junction started in with the TANGO (Trans-Atlantic Network for Geodynamics and Oceanography) project (Bastos et al., ).The initial network consisted of one station per island (cf.
Fig. 1) and was re-occupied with an approximate triennial periodicity until Cited by: Seismicity along the Azores-Gibraltar region and global plate kinematics.
mechanisms an d plate kinematic mode ls derived from. continuous GPS observations with data acquired during. Our late Paleozoic to present-day global plate kinematic model (–0 Ma) with continuous plate boundaries is primarily constructed from two published plate models.
For the period from to Ma we adopt the model of Domeier and Torsvik (), and for the period from Ma to present-day we adopt the model of Müller et al. ( Cited by: number of GPS stations in the Western Mediterranean, however, cannot exhaustively describe the kinematics of the complex Africa-Eurasia plate boundary system, and an integrated use of GPS data and other independent kinematic indicators (e.g.
earthquake focal mechanisms) is, therefore, necessary to provide a better description. We have analyzed the focal mechanisms and depths of 10 moderately sized earthquakes along the Azores‐Gibraltar plate boundary by a variety of methods including formal inversion of the waveform and amplitude of teleseismic P and SH waves, first motion readings, and the identification of.
Seismicity along the western part of the Eurasia–Nubia plate boundary displays very complex patterns. The average motion is transtensional in the Azores, dextral along the Gloria transform zone and convergent between the SW Portuguese Atlantic margin and the Ibero-Maghrebian zone.
To constrain the factors controlling the seismicity, we provide a new seismotectonic synthesis using several. The Azores–Gibraltar Transform Fault (AGFZ), also called a fault zone and a fracture zone, is a major seismic fault in the Central Atlantic Ocean west of the Strait of is the product of the complex interaction between the African, Eurasian, and Iberian plates.
The AGFZ produced the large-magnitude Lisbon and Horseshoe earthquakes and, consequently, a number of large. 1. Introduction. Greece is located at a complex plate boundary region where two tectonic plates (Africa-Nubia and Eurasia) converge and the country has very high risk of major earthquakes along the Hellenic Arc (Makropoulos and Burton,Pirazzoli et al.,Papazachos,Shaw et al., ).Relative motion of these plates accumulates stress in the lithosphere, causing observable.
Laughton A.S., Whitmarsh R.B. () The Azores-Gibraltar Plate Boundary. In: Kristjansson L. (eds) Geodynamics of Iceland and the North Atlantic Area. NATO Advanced Study Institutes Series (Series C — Mathematical and Physical Sciences), vol The GPS observations used in this study consist of the following: (1) new measurements at 35 campaign sites on Faial, Pico and Terceira islands (shown by red circles in Fig.
2A), (2) measurements at continuous sites on the Nubia and Eurasia plates (Fig. 3, Fig. 4), and (3) velocities for 15 GPS stations on S.
Jorge Island from Mendes et al. GPS sites in Oman show northward motion of the Arabian Plate relative to Eurasia slower than the NUVEL‐1A estimates (e.g. 22 ± 2 mm yr −1 at N8°± 5°E instead of mm yr −1 at N6°E at Bahrain longitude).
We define a GPS Arabia–Eurasia Euler vector of °± °N, °± °E, °± ° Myr −1. The Arabia–Eurasia. When motion along this boundary ceased, a boundary linking extension in the King's Trough to compression along the Pyrenees came into existence.
Finally, since the late Oligocene, Iberia has been part of the Eurasian plate, with the boundary between Eurasia and Africa situated along the Azores-Gibraltar fracture zone. Detailed structural interpretation of the recently acquired deep seismic multichannel profiles along the Iberian Atlantic Margins (IAM Project) provides new results on the geodynamic evolution of the eastern part of the Azores-Gibraltar plate boundary.
Thrusting and folding of the oceanic basement and of Mesozoic and Cenozoic sedimentary cover of the Gorringe Bank region are consistent with.
Global plate boundary evolution and kinematics since the late Paleozoic, Global and Planetary Change,DOI: /cha Abstract. Plate tectonics (from the Late Latin: tectonicus, from the Ancient Greek: τεκτονικός, lit. 'pertaining to building') is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth's lithosphere, since tectonic processes began on Earth between and billion years ago.
Crustal deformation and kinematics of the Eastern Part of the North Anatolian Fault Zone (Turkey) from GPS measurements Orhan Tatar a,⁎, Fatih Poyraz b, Halil Gürsoy a, Ziyadin Cakir c, Semih Ergintav d, Zafer Akpınar a, Fikret Koçbulut a, Fikret Sezen a, Tarık Türk b, Kemal ğlu b, Ali Polat a, B.
Levent Mesci a, Önder Gürsoy e, üment Ayazlı f, Rahşan Çakmak d. I like your article in general but have a couple of observations.
Sandy Bay always existed but was the victim of man made structures like marinas and beach breakers further north mostly in Spain which altered the tide and wave flows. Various attempts were made before to replenish the sand only for it to be washed away the following winter.
This work was mainly motivated by the results of the analysis of the data of the strain-gauge array, which has been active for more than 20 years in the easternmost part of the study area (Marussi. Gibraltar is a British possession on the S tip of the Iberian Peninsula.
Its name is a corruption of ‘Gebel Tariq’, or Tariq's Rock, after the Moor who conquered it in AD It has been successively garrisoned by the Moors, the Spanish and the British (Rose and Rosenbaum, ).
Based on plate kinematics, on the new structural data, and on São Miguel's structural and volcanic trends, we propose that the eastern two thirds of São Miguel lie along a main TR-related.The book was published in and is illustrated by B.
S. Le Fanu and in my opinion some of Anderson's stories - however overly sentimental and far-fetched to modern ears - are of enough historic interest to warrant a read.
The following is a review of the more appropriate ones.This article describes the seismic activity of the Azores–Gibraltar region and interprets it in the light of plate tectonics.