Geometry and sedimentary evolution of the transpresssive Roquebrune-Cap Martin basin: implications on the kinematics and timing of the Nice arc deformation during Miocene times, SW Alps

2011 ◽  
Vol 182 (6) ◽  
pp. 493-506 ◽  
Author(s):  
Gérard Giannerini ◽  
Guillaume Sanchez ◽  
Dimitri Schreiber ◽  
Jean-Marc Lardeaux ◽  
Yann Rolland ◽  
...  
Keyword(s):  
Late Miocene ◽  
Strike Slip ◽  
Mass Wasting ◽  
The West ◽  
Tectonic Control ◽  
Sedimentary Evolution ◽  
Active Tectonic ◽  
The One ◽  
Structural Levels ◽  
Structural High

Abstract The Roquebrune-Cap Martin basin (RCMB), developed along the eastern rim of the Nice arc, represents an exclusive sedimentary marker constraining the timing of the deformation in the Nice arc (southern Subalpine chain) during Miocene times. Structural and sedimentological analyses as well as 3D geometrical modeling of the RCMB revealed morphological, structural and sedimentological features characterizing an active tectonic control of the sedimentary infills and the basin development. Structural and microstructural analyses along the eastern boundary of the Nice arc evidenced a N-S left-lateral strike-slip ‘en echelon’ faults system named Mont Gros-St Agnès Castillon relayed by the Biancon E-W thrusts and sheets. The formation of the RCMB appears to be genetically linked to these strike-slip ‘en échelon’ faults. Such characteristics include the presence of the Mont Gros strike-slip fault structural high relief bounding the RCMB to the West, the West-East asymmetry of the sedimentary infill with a laterally transition facies from breccias directly below the fault relief to conglomerates and sandstones in the central part of the basin and the presence of mass wasting in all structural levels of the basin. The onset and the evolution of the basin were driven by transpresssive tectonics, generating a deep and narrow tectonic depression, bounded by steep tectonically controlled slopes. The transpresssive character of the eastern Nice arc boundary where the syn-tectonic RCMB is hosted, accommodate a general southward translation of the Nice arc in response to a N-S shortening regime. The sedimentological and previous paleontological analyses suggest that the activity of the eastern Nice arc transpresssive boundary generating the RCMB and thus the southward motion of the Nice arc, started during the Early Miocene (Aquitanian), continuing through the Late Miocene (Tortonian). The style and the timing of the syn-sedimentary deformation of the Nice arc is coherent in space and time with the one affecting the Digne and Castellane arc.

scholarly journals GEOMORPHOLOGICAL CHARACTERIZATION OF THE TARUMÃ-AÇÚ BASIN, AMAZONAS, BRAZIL

2020 ◽  
Vol 11 (2) ◽  
pp. 113-125
Author(s):  
Matheus Silveira de Queiroz ◽  
José Alberto Lima de Carvalho
Keyword(s):  
Morphometric Analysis ◽  
Structural Control ◽  
Strike Slip ◽  
Strike Slip Fault ◽  
Left Bank ◽  
The West ◽  
Tectonic Control

The purpose of this work was to analyze the geomorphology of the Tarumã-Açú basin according to morphometric, slope, topographical parameters to understand the current dynamics of the basin geomorphological. Morphometric analysis indicated a low tendency to erosion in the Basin. The flat slope is located near the mouth of the Tarumã-Açú river and the largest slopes indicate terraces and dividers and most of the basin is characterized by small and medium hills (3-20 %). The basin has a strong structural control represented by a Strike-Slip Fault that controls the Tarumã-Açú River and the tributaries of left bank have lineaments and parallelism that may indicate tectonic control (dip-slip faults?) in an en enchelon system. It is also noted that the basin underwent tectonic tilting to the west, possibly indicating tectonic influence during the Cenozoic.

Latest Miocene Mediterranean-Atlantic gateway restriction: The Atlantic's side of the story

2020 ◽  
Author(s):  
Zhi Lin Ng ◽  
Francisco Javier Hernández-Molina ◽  
Débora Duarte ◽  
Francisco Javier Sierro ◽  
Santiago Ledesma ◽  
...  
Keyword(s):  
Late Miocene ◽  
Seismic Interpretation ◽  
Seismic Facies ◽  
Messinian Salinity Crisis ◽  
The West ◽  
Mediterranean Outflow Water ◽  
Sedimentary Evolution ◽  
Mediterranean Outflow ◽  
The Mediterranean ◽  
Sedimentary Unit

<p>The closure of Late Miocene Mediterranean-Atlantic gateways and the restriction of Mediterranean Outflow Water (MOW) led to the Messinian Salinity Crisis (MSC), the dynamics of which is not well understood. However, restriction of the Mediterranean-Atlantic exchange and the Mediterranean Outflow Water (MOW) is one of the prerequisites to generate hypersaline conditions for evaporitic deposition. During the Late Miocene, MOW circulation was active through a Mediterranean-Atlantic exchange of the Betic, Riffian, and possibly Gibraltar gateways. This connection is thought to have ceased or reduced with the onset of the MSC, before re-establishing through the Gibraltar gateway since the Pliocene to the present. In this study, we define the sedimentary evolution of the Neogene Basins of the Gulf of Cádiz to investigate MOW evolution during the latest Miocene. Seismic interpretation shows an Upper Messinian sedimentary unit of transparent seismic facies. It could also be found in the lower Guadalquivir and Gharb basins, and towards the West Portuguese margin. Biostratigraphic dating indicate an onset of deposition predating the MSC. Distribution of this transparent unit implicates the dominant deposition of hemipelagic/pelagic deposits during a period of quiescence in the Atlantic margins, subsequent to MOW disconnection. This suggests that weakening or cut-off of the intermediate bottom currents of the Mediterranean-Atlantic exchange through the Betic-Gibraltar-Riffian paleo-gateways precedes the onset of MSC evaporites. This work is crucial for the understanding of sedimentary, paleoceanographic and climatic implications of the Latest Miocene Mediterranean isolation in the Atlantic margins.</p>

Psychology from Egyptian, Arab, and Islamic Perspectives

1997 ◽  
Vol 2 (4) ◽  
pp. 356-365 ◽  
Author(s):  
Fouad A-L.H. Abou-Hatab
Keyword(s):  
Professional Identity ◽  
21St Century ◽  
The West ◽  
Islamic Perspective ◽  
National Heritage ◽  
Western Psychology ◽  
The World ◽  
The One

This paper presents the case of psychology from a perspective not widely recognized by the West, namely, the Egyptian, Arab, and Islamic perspective. It discusses the introduction and development of psychology in this part of the world. Whenever such efforts are evaluated, six problems become apparent: (1) the one-way interaction with Western psychology; (2) the intellectual dependency; (3) the remote relationship with national heritage; (4) its irrelevance to cultural and social realities; (5) the inhibition of creativity; and (6) the loss of professional identity. Nevertheless, some major achievements are emphasized, and a four-facet look into the 21st century is proposed.

The Munich conference of Minister-Presidents of German lands in 1947

2020 ◽  
Vol 2020 (10-2) ◽  
pp. 86-98
Author(s):  
Ivan Popov
Keyword(s):  
The State ◽  
State Governments ◽  
The West ◽  
Constitutional Development ◽  
The Moment ◽  
The One

The paper deals with the organization and decisions of the conference of the Minister-Presidents of German lands in Munich on June 6-7, 1947, which became the one and only meeting of the heads of the state governments of the western and eastern occupation zones before the division of Germany. The conference was the first experience of national positioning of the regional elite and clearly demonstrated that by the middle of 1947, not only between the allies, but also among German politicians, the incompatibility of perspectives of further constitutional development was existent and all the basic conditions for the division of Germany became ripe. Munich was the last significant demonstration of this disunity and the moment of the final turn towards the three-zone orientation of the West German elite.

scholarly journals Tectono-Sedimentary Evolution of the Cenozoic Basins in the Eastern External Betic Zone (SE Spain)

Geosciences ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 394
Author(s):  
Manuel Martín-Martín ◽  
Francesco Guerrera ◽  
Mario Tramontana
Keyword(s):  
Strike Slip ◽  
Alluvial Fan ◽  
Tectonic Activity ◽  
Time Interval ◽  
Se Spain ◽  
The Third ◽  
Sedimentary Evolution ◽  
Marine Sedimentation ◽  
Geodynamic Processes ◽  
Early Paleocene

Four main unconformities (1–4) were recognized in the sedimentary record of the Cenozoic basins of the eastern External Betic Zone (SE, Spain). They are located at different stratigraphic levels, as follows: (1) Cretaceous-Paleogene boundary, even if this unconformity was also recorded at the early Paleocene (Murcia sector) and early Eocene (Alicante sector), (2) Eocene-Oligocene boundary, quite synchronous, in the whole considered area, (3) early Burdigalian, quite synchronous (recognized in the Murcia sector) and (4) Middle Tortonian (recognized in Murcia and Alicante sectors). These unconformities correspond to stratigraphic gaps of different temporal extensions and with different controls (tectonic or eustatic), which allowed recognizing minor sedimentary cycles in the Paleocene–Miocene time span. The Cenozoic marine sedimentation started over the oldest unconformity (i.e., the principal one), above the Mesozoic marine deposits. Paleocene-Eocene sedimentation shows numerous tectofacies (such as: turbidites, slumps, olistostromes, mega-olistostromes and pillow-beds) interpreted as related to an early, blind and deep-seated tectonic activity, acting in the more internal subdomains of the External Betic Zone as a result of the geodynamic processes related to the evolution of the westernmost branch of the Tethys. The second unconformity resulted from an Oligocene to Aquitanian sedimentary evolution in the Murcia Sector from marine realms to continental environments. This last time interval is characterized as the previous one by a gentle tectonic activity. On the other hand, the Miocene sedimentation was totally controlled by the development of superficial thrusts and/or strike-slip faults zones, both related to the regional geodynamic evolutionary framework linked to the Mediterranean opening. These strike-slip faults zones created subsidence areas (pull-apart basin-type) and affected the sedimentation lying above the third unconformity. By contrast, the subsidence areas were bounded by structural highs affected by thrusts and folds. After the third unconformity, the Burdigalian-Serravallian sedimentation occurred mainly in shallow- to deep-water marine environments (Tap Fm). During the Late Miocene, after the fourth unconformity, the activation of the strike-slip faults zones caused a shallow marine environment sedimentation in the Murcia sector and a continental (lacustrine and fluvial) deposition in the Alicante sector represented the latter, resulting in alluvial fan deposits. Furthermore, the location of these fans changed over time according to the activation of faults responsible for the tectonic rising of Triassic salt deposits, which fed the fan themselves.

scholarly journals Performance Evaluation of Different SAR-Based Techniques on the 2019 Ridgecrest Sequence

2021 ◽  
Vol 13 (4) ◽  
pp. 685
Author(s):  
Marco Polcari ◽  
Mimmo Palano ◽  
Marco Moro
Keyword(s):  
Performance Evaluation ◽  
Strike Slip ◽  
Seismic Sequence ◽  
Fault Rupture ◽  
Coseismic Displacement ◽  
Surface Rupture ◽  
Eastern California Shear Zone ◽  
Tectonic Framework ◽  
Gnss Network ◽  
The One

We evaluated the performances of different SAR-based techniques by analyzing the surface coseismic displacement related to the 2019 Ridgecrest seismic sequence (an Mw 6.4 foreshock on July 4th and an Mw 7.1 mainshock on July 6th) in the tectonic framework of the eastern California shear zone (Southern California, USA). To this end, we compared and validated the retrieved SAR-based coseismic displacement with the one estimated by a dense GNSS network, extensively covering the study area. All the SAR-based techniques constrained the surface fault rupture well; however, in comparison with the GNSS-based coseismic displacement, some significant differences were observed. InSAR data showed better performance than MAI and POT data by factors of about two and three, respectively, therefore confirming that InSAR is the most consolidated technique to map surface coseismic displacements. However, MAI and POT data made it possible to better constrain the azimuth displacement and to retrieve the surface rupture trace. Therefore, for cases of strike-slip earthquakes, all the techniques should be exploited to achieve a full synoptic view of the coseismic displacement field.

‘There shall be no musical servitude’: Towards a Multitudinous Shostakovich in the West

2020 ◽  
Vol 145 (2) ◽  
pp. 495-505
Author(s):  
EIRINI DIAMANTOULI
Keyword(s):  
Cold War ◽  
Communist Party ◽  
The Other ◽  
The Political ◽  
Musical Style ◽  
The West ◽  
Political Views ◽  
Political Interests ◽  
The One ◽  
The Cold War

Ideologically motivated attempts to elucidate Shostakovich’s political views and to determine whether and how they may be coded into his compositions have come to characterize the Western reception of the composer’s works since his death in 1975. Fuelled by the political oppositions of the cold war, Shostakovich’s posthumous reputation in the West has been largely shaped by two conflicting perspectives. These have positioned him on the one hand as a secret dissident, bent and broken under the unbearable strain of totalitarianism, made heroic through his veiled musical resistance to Communism; and on the other hand as a composer compromised by his capitulation to the regime – represented in an anachronistic musical style. Both perspectives surrender Shostakovich and his music to a crude oversimplification driven by vested political interests. Western listeners thus conditioned are primed to hear either the coded dissidence of a tragic victim of Communist brutality or the sinister submission of a ‘loyal son of the Communist Party’.1 For those prepared to accept Shostakovich as a ‘tragic victim’, the publication of his purported memoirs in 1979, ‘as related to and edited by’ the author Solomon Volkov, presents a tantalizing conclusion: bitterly yet discreetly scornful of the Stalinist regime, Shostakovich was indeed a secret dissident and this dissidence was made tangible in his music.

Informed Consent: Ezenwa–Ohaeto between Past and Future Uses of Pidgin

Matatu ◽  
2006 ◽  
Vol 33 (1) ◽  
pp. 115-134 ◽  
Author(s):  
Chantal Zabus
Keyword(s):  
Informed Consent ◽  
First Language ◽  
West African ◽  
The Other ◽  
Wole Soyinka ◽  
The West ◽  
West African Coast ◽  
African Coast ◽  
The 1950S ◽  
The One

The essay shows how Ezenwa–Ohaeto's poetry in pidgin, particularly in his collection (1988), emblematizes a linguistic interface between, on the one hand, the pseudo-pidgin of Onitsha Market pamphleteers of the 1950s and 1960s (including in its gendered guise as in Cyprian Ekwensi) and, on the other, its quasicreolized form in contemporary news and television and radio dramas as well as a potential first language. While locating Nigerian Pidgin or EnPi in the wider context of the emergence of pidgins on the West African Coast, the essay also draws on examples from Joyce Cary, Frank Aig–Imoukhuede, Ogali A. Ogali, Ola Rotimi, Wole Soyinka, and Tunde Fatunde among others. It is not by default but out of choice and with their 'informed consent' that EnPi writers such as Ezenwa–Ohaeto contributed to the unfinished plot of the pidgin–creole continuum.

Managing to Avoid Innovation

1999 ◽  
Vol 13 (1) ◽  
pp. 25-32 ◽  
Author(s):  
J. H. Vaux ◽  
M. P. S. F. Gomes ◽  
R. J. Grieve ◽  
S. W. Woolgar
Keyword(s):  
The Other ◽  
Advanced Technology ◽  
Manufacturing Companies ◽  
Small Companies ◽  
Small Company ◽  
The West ◽  
Policy Makers ◽  
Technology And Innovation ◽  
Company Culture ◽  
The One

This paper addresses differences in the way that the problems of small UK firms are construed by policy makers on the one hand, and by the executives of small companies on the other. The authors employ a discursively-based analysis of interviews carried out with managers of small manufacturing companies in the West London area. They suggest that SME executives construe their attitudes to advanced technology and innovation within the terms of some clear, but implicit management values which tend to lead to the perception of innovation as a risk to be managed, rather than an opportunity to be exploited. It is suggested this has significant implications for attempts to change small company culture.

Clay supplies in the Central Indian Basin since the Late Miocene: climatic or tectonic control?

1994 ◽  
Vol 122 (1-2) ◽  
pp. 151-172 ◽  
Author(s):  
N. Fagel ◽  
P. Debrabant ◽  
L. André
Keyword(s):  
Late Miocene ◽  
Tectonic Control ◽  
Central Indian Basin
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