Résumé : Hugh C. Macfarlane, an immigrant from Scotland, purchased land in November 1886 and built a cigar factory that started production on .June 15, 1892. Macfarlane and other developers offered free land and buildings, bringing in more cigar factories and growth that led to the formation of the City of West Tampa on May 18, 1895. Other immigrants from Cuba, Spain, Italy, Scotland, Ireland, Germany and different parts of the United States made up the population, giving the town its distinctive, vibrant character. After thirty years as a prospering municipality West Tampa was annexed to the City of Tampa on January 1, 1925.
(Funding) Funded in part by the Institute for Museum and Library Services (IMLS), Ephemeral Cities Project.
Tampa |z 1271000 |2 ceeus
Hillsborough County |z 12057 |2 ceeus
United States of America -- Florida -- Hillsborough County -- Tampa
Main Street

Droits : All rights reserved. 2005.
P21-0238

Éditeur(s) : Govt. Print. Off. Govt. Print. Off. ( Washington )
Résumé : (Statement of Responsibility) by Charles Rau.
At head of title: Department of the Interior. U.S. Geographical and Geological Survey of the Rocky Mountain Region. J.W. Powell, in charge.
United States of America
United Kingdom -- Scotland
United Kingdom -- England
Ireland
France
Switzerland
Germany
Austria
Denmark
Sweden
India
North America
Amérique du Nord
Amérique du Nord

03370693
02027774

Éditeur(s) : [s.n.] [s.n.] ( Rio de Janeiro )
Résumé : (Language) In Portuguese and English or German with summaries and/or translations in French and Spanish.
(Dates or Sequential Designation) Began with Mar. 1955 issue.
Revista de arquitetura e artes plasticas.
Brazil
Brazil
Brésil

02448712
62000191
UF00103183_00001

Éditeur(s) : Food and Resource Economics Dept., Institute of Food and Agricultural Sciences, University of Florida Food and Resource Economics Dept., Institute of Food and Agricultural Sciences, University of Florida ( Gainesville Fla )
Résumé : (Bibliography) Includes bibliographical references.
(Statement of Responsibility) Uma Lele.
"November 1992"--Cover.
"Keynote address to the First Plenary Session of the European Association of Agricultural Economists' Seminar on Food and Agricultural Policies Under Structural Adjustment, September 21-25, 1992, Hohenheim, Germany."
(Funding) Electronic resources created as part of a prototype UF Institutional Repository and Faculty Papers project by the University of Florida.
Africa
Asia
Latin America
Africa
Asia
Latin America

Droits : All rights reserved, Board of Trustees of the University of Florida
001784450
27377053
AJK7832

Éditeur(s) : Universidad Central de Venezuela, Facultad de Humanidades y Educación, Escuela de Historia University of Florida, Center for Latin American Studies, Bacardi Family Chair for Eminent Scholars Universidad Central de Venezuela, Facultad de Humanidades y Educación, Escuela de Historia ( ) University of Florida, Center for Latin American Studies, Bacardi Family Chair for Eminent Scholars ( Gainesville Fla )
Résumé : (Statement of Responsibility) Germán Carrera Damas.
Cover title.
At head of title: Seminario Anual del Grupo Jirahara, Foro "Visiones de un Siglo", Barquisimeto, Venezuela, 28 al 30 de abril de 2000"
Venezuela

002711590
48651387
ANH9303

Éditeur(s) : [s.n.] ( [Leipzig] )
Résumé : From German edition of Histoire Generale des Voyages..., by Prevost d'Exiles, Antoine F.
Also in original French edition of the Atlas: entitled "Carte des Provinces de Caracas, Comana et Paria Situees dans l'Amerique Meridionale ...", 1754.
Relief shown pictorially.
Includes scale in French miles.
Longitudes from Paris and Ferro given on map.
"No 4., T. XIII. H."
(Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program.
(Statement of Responsibility) Von dem Hrn. B., Ing. de la M.
Venezuela
Venezuela
Venezuela
Venezuela
Venezuela
Venezuela

Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide.
002357415
ALW1858
122378480
http://ufdc.ufl.edu/UF00066673/00001

Éditeur(s) : [s.n.] ( [Leipzig] )
Résumé : From German edition of Histoire Generale des Voyages..., by Prévost d'Exiles, Antoine François.
In original French edition of the Atlas: map # 32, entitled "Carte De L'Empire Du Mexique. Pour l'Histoire Generale des Voyages.", 1754. (Shirley, R.M. Maps in the Atlases of the British Library : M.Bell-6a.)
Map uses the same plate as original French edition, text translated into German.
Relief shown pictorially.
Includes scale in French miles.
"No 11., J. 13 F."
Longitudes from Ferro and Paris given on map.
(Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program.
(Statement of Responsibility) von M. B., Ing. de la Marine.
Mexico
Mexico
Mexico
Mexico
Mexico
Mexico

Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide.
002356788
ALW1216
122377186
http://ufdc.ufl.edu/UF00066660/00001

Éditeur(s) : Johanne Gottfriedt Johanne Gottfriedt ( Frankfurt )
Résumé : German text.
Illustration hand-colored, ca. 2000.
In this view, conquistador Alonso Ojeda and crew, including Amerigo Vespucci, are seen landing on Dominica in 1499--the first Europeans to do so. The Carib Indians, said to be 500 strong, are waging a fierce battle of resistance.
Dominica
West Indies

Droits : All rights reserved by the source institution.
2004-320-1

Éditeur(s) : [s.n.] ( Leipzig )
Résumé : From German edition of Histoire Generale des Voyages..., by Prevost d'Exiles.
"No.3" upper right margin
(Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program.
(Statement of Responsibility) Von M. Bellin Ingenr. de la Marine.
Haiti
Dominican Republic
Hispaniola
Haiti
Dominican Republic
Hispaniola
Haiti
Dominican Republic
Hispaniola
Haiti
Dominican Republic
Hispaniola
Dominican Republic
Haiti
Hispaniola
Haiti
Dominican Republic
Hispaniola

Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide.
002567685
AMT3982
78340858
http://ufdc.ufl.edu/UF00005027/00001

Éditeur(s) : Université des Antilles Études caribéennes
Résumé : El desarrollo del turismo de masas en Canarias se inició a principios de la década de los años sesenta del siglo XX. El modelo adoptado fue coetáneo y muy semejante al de otras zonas litorales del Estado español, que se vieron afectadas por un intenso proceso de urbanización. Acutalmente, el perfil del turismo que nos visita nos indica la preferencia de los centroeuropeos por este destino, predominantemente, de los alemanes y británicos. En cuanto a la oferta turística, la política de los tour-operadores, los factores medio-ambientales y patrimoniales, así como el apoyo de las instituciones y de los empresarios han sido decisivos. Por ello, este sector se ha convertido en el motor de la economía del Archipiélago.
Le développement du tourisme de masses dans les Îles Canaries a commencé au début des années 1960. Le modèle adopté repose sur les mêmes logiques que les aménagements touristiques des littoraux méditerranéens espagnols qui ont abouti à d’intenses processus d’urbanisation. Actuellement, la fréquentation touristique de l’archipel indique la préférence des clientèles de l’Ouest-européen, surtout des allemandes et britanniques. Le tourisme s’est affirmé comme le véritable moteur de l’économie de l’archipel.
The development of mass tourism in the Canary Islands started in middle of the 20th century, at the beginning of the 60’s. The adopted model was contemporary and very similar to the model of other coastal areas of the Spanish State, which were affected by an intense urbanization process. Nowadays, the profile of the tourism that visits us shows the preference of Centre-European citizens for this destiny, predominately German and British. As regards the tourist offer, the tour-operators policy, the environmental and patrimonial factors, as well as the institutional and managerial support have been definitive. That’s why this sector has become the motor of the archipelago’s economy.
Canaries

Droits : info:eu-repo/semantics/openAccess
urn:doi:10.4000/etudescaribeennes.1082
http://journals.openedition.org/etudescaribeennes/1082

Éditeur(s) : Ward & Lock Ward & Lock ( London (158 Fleet Street) )
Résumé : (Citation/Reference) NUC pre-1956,
(Statement of Responsibility) illustrated with one hundred and ten wood engravings.
On spine: Robinson Crusoe. Ward, Lock, & Tyler.
Some ill. engraved by Dalziel.
Date estimated from several sources. The text matches the description in NUC cited below, which is dated ca. 1858? and Lovett, R.W. Robinson Crusoe, 446, dated 1858, except that the Lovett copy has no front. The publisher used the name Ward & Lock from 1854-1865 and the name Ward, Lock & Tyler from 1865-1873. Cf. Brit. literary pub. houses, 1820- 1880. See also Library's copy note below.
"The original text , slightly shortened, has been adhered to. ... The drawings are from an eminent German pencil ..."--Biog. notice, p. viii.
Publisher's advertisement (4 p.) at end.
University of Florida library's copy inscribed 1868 and bound with later form of publisher's name on spine.
England -- London

Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact The Department of Special and Area Studies Collections (special@uflib.ufl.edu) with any additional information they can provide.
28239063

Éditeur(s) : HAL CCSD Mineralogical Society of America
Résumé : International audience
To constrain the crystallization of alkaline and volatile-rich lavas present in intraplate settings, we studied the petrological features and the geochemical composition of major, trace, and volatile elements of mineral and bulk-rock of two sodalite-bearing phonolites: (1) haüyne-plagioclase-bearing Si-K-rich phonolite from Laacher See (Germany) and (2) nosean-nepheline-bearing Si-poor phonolite from Saghro (Morocco). In haüyne-bearing phonolites (55–59 wt% SiO2, K > Na, Na+K/Al = 0.96–1.08), we found that the low silica and low sodium activity promoted the early crystallization of S-rich haüyne (13.7–13.9 wt% SO3, 0.4 wt% Cl) + S-rich apatite (0.7–0.9 wt% SO3), titanite, and rare pyrrhotite followed by clinopyroxene-plagioclase-sanidine at relatively low pressure and temperature (P = 250 MPa and T = 850 °C) and oxidized condition (ΔNNO-NNO+1, where NNO is nickel-nickel oxide buffer). The crystallization of haüyne occurred at fluid-undersaturated conditions from a silicate melt with 6 wt% H2O, 0.17–0.23 wt% Cl, 0.11–0.4 wt% S, and 0.07–0.14 wt% F. Nosean-bearing phonolites from Saghro are silica-poor and peralkaline (52–54 wt% SiO2, Na > K, Na+K/Al = 1.2) and crystallized at higher P and T (300 MPa and 950 °C) and more reduced conditions (NNO) compared to haüyne-bearing phonolites. The incongruent reaction to form nosean requires high silica and Na2O activity. The mineral assemblage and composition suggest early crystallization of nepheline followed by nosean (7.8–8.8 wt% SO3; 1–1.1 wt% Cl). The sequence of crystallization is: clinopyroxene + nepheline + S-poor apatite (<0.04 wt% SO3) + pyrrhotite followed by nosean and titanite. Nosean-bearing magmas are fluid-undersaturated with relatively low volatile content (4 wt% H2O, <0.25 wt% Cl, <0.056 wt% S, 0.08–0.1 wt% F), although Cl may have exsolved during ascent and formed a fluid phase (NaCl-bearing).Both haüyne- and nosean-bearing phonolites are last equilibrated at relatively low pressure and high temperature. Haüyne and nosean crystallized at oxidized and volatile-rich pre-eruptive conditions. They record the volatile concentrations at depth and may be used as oxybarometer. The incongruent reactions involved to form haüyne and nosean suggest that phonolitic magmas became more oxidized during crystallization. The initial volatile concentrations in basanite/nephelinite magmas, from partial melting of volatile-bearing K2O-rich mantle rock, should have been one important factor influencing the crystallization of haüyne-bearing Si-K-rich phonolite and nosean-bearing Si-poor phonolite in intracontinental setting.
ISSN: 0003-004X

hal-01278067
https://hal.archives-ouvertes.fr/hal-01278067
DOI : 10.2138/am-2015-5318

Éditeur(s) : HAL CCSD
Résumé : International audience
Studies report that foetal exposure to paracetamol by maternal consumption can interfere with male reproductive development. Moreover, recent biomonitoring data report widespread presence of paracetamol in German and Danish populations, suggesting exposure via secondary (non-pharmaceutical) sources such as metabolic conversion from the ubiquitous industrial compound aniline. In this study we investigated the extent to which paracetamol and aniline can interfere with female reproductive development. Intrauterine exposure to paracetamol by gavage of pregnant dams resulted in shortening of the anogenital distance in adult offspring, suggesting that foetal hormone signalling had been disturbed. Female offspring of paracetamol-exposed mothers had ovaries with diminished follicle reserve and reduced fertility. Foetal gonads of exposed animals had also reduced gonocyte numbers, suggesting that the reduced follicle count in adults could be due to early disruption of germ cell development. However, ex vivo cultures of ovaries from 12.5 days post coitum foetuses showed no decrease in proliferation or expression following exposure to paracetamol. This suggests that the effect of paracetamol occurs prior to this developmental stage. Accordingly, using embryonic stem cells as a proxy for primordial germ cells we show that paracetamol is an inhibitor of cellular proliferation, but without cytotoxic effects. Collectively, our data show that intrauterine exposure to paracetamol at levels commonly observed in pregnant women, as well as its precursor aniline, may block primordial germ cell proliferation, ultimately leading to reduced follicle reserves and compromised reproductive capacity later in life
Toxicological Sciences

hal-01259211
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01259211
DOI : 10.1093/toxsci/kfv332
PUBMED : 26732887

Résumé : Deep-sea drilling project, launched by the U.S.A. in 1964, aiming to better understand the conditions of genesis and evolution of the ocean. The first drilling was carried out by the "Glomar Challenger" in the Gulf of Mexico in 1968. From 1968 to 1981, more than 600 sites have been drilled during 80 cruises conducted on board the "Glomar Challenger". The international phase or fourth phase of the D.S.D.P. started in 1975 and ended in 1981. Five countries joined the U.S. in this project: the U.S.S.R, Federal Germany, Japan, England and France. The P.O.D. focus: Drilling the oceanic bottoms deeper than during the first three phases of the D.S.D.P.
Projet de forage des grands fonds océaniques, lancé par les États-Unis en 1964, dans le but de mieux comprendre les conditions de genèse et d'évolution de l'océan. Premier forage effectué par le "Glomar Challenger" dans le Golfe du Mexique en 1968. De 1968 à 1981, plus de 600 sites ont été forés au cours de 80 campagnes du "Glomar Challenger". La phase internationale ou quatrième phase du DSDP, qui a débuté en 1975, s'achève en 1981. Cinq pays étrangers se sont joints aux États-Unis pour réaliser ce projet : l'URSS, l'Allemagne Fédérale, le Japon, l'Angleterre et la France. Les objectifs dflPOD : forer plus profondément les fonds océaniques qu'au cours des trois premières phases du DSDP. [OCR NON CONTRÔLE]

Droits : info:eu-repo/semantics/openAccess
http://archimer.ifremer.fr/doc/1981/rapport-4941.PDF
http://archimer.ifremer.fr/doc/00000/4941/

Éditeur(s) : HAL CCSD
Résumé : International audience
S’il paraît aujourd’hui difficile de penser la didactique sans recourir à une approche linguistique (Germain, 2000), il va sans nul doute que l’exemple de la Réforme des Lycées en France (Chatel, 2010) en renouvelle considérablement la portée. Cette Réforme vise à favoriser la mise en place de nouveaux dispositifs pédagogiques par les équipes éducatives afin d’aider les élèves dans leur cursus scolaire. L’ensemble des prescriptions de la Réforme résulte d’un programme dont la prise en charge dans un contexte socioculturel et linguistique spécifique renouvelle le contenu (Talbot, 2005). En effet, l’île franco-néerlandaise de Saint-Martin, dont la partie française est désormais « Collectivité d’Outre-Mer de la République » (COM) depuis 2007 se caractérise par une situation de multilinguisme (anglais, créole haïtien, espagnol, français) et pose la question des stratégies pédagogiques et didactiques à adopter dans le cadre de l’enseignement du français. La prise en compte des spécificités langagières du public saint- martinois infléchit les pratiques possibles en invitant à un nouveau positionnement quant à la définition des finalités de tout accompagnement personnalisé de l’élève plurilingue (Castellotti et Moore, 2008) au sein de sa scolarisation. Cette étude vise donc à modéliser les rapports peut-être problématiques entre processus interactionnels et situations éducatives (Fillietaz & Schubauer-Leoni, 2008). Il s’agit à travers un dispositif particulier de la Réforme, l’Accompagnement personnalisé (AP), de décrire comme le contenu d’enseignement, l’activité enseignante et celle de l’élève bouleversent le modèle didactique systématique (Carnus, 2010), en lui imposant dans ce contexte multilingue d’enseignement, de nouveaux défis.
Congrès mondial de linguistique française 8e édition
Berlin, Germany

hal-01532985
https://hal.archives-ouvertes.fr/hal-01532985

Éditeur(s) : HAL CCSD Wiley
Résumé : International audience
Within the framework of the international field campaign COPS (Convective and Orographically induced Precipitation Study), a large suite of state-of-the-art meteorological instrumentation was operated, partially combined for the first time. This includes networks of in situ and remote-sensing systems such as the Global Positioning System as well as a synergy of multi-wavelength passive and active remote-sensing instruments such as advanced radar and lidar systems. The COPS field phase was performed from 01 June to 31 August 2007 in a low-mountain area in southwestern Germany/eastern France covering the Vosges mountains, the Rhine valley and the Black Forest mountains. The collected dataset covers the entire evolution of convective precipitation events in complex terrain from their initiation, to their development and mature phase until their decay. Eighteen Intensive Observations Periods with 37 operation days and eight additional Special Observations Periods were performed, providing a comprehensive dataset covering different forcing conditions. In this article, an overview of the COPS scientific strategy, the field phase, and its first accomplishments is given. Highlights of the campaign are illustrated with several measurement examples. It is demonstrated that COPS research provides new insight into key processes leading to convection initiation and to the modification of precipitation by orography, in the improvement of quantitative precipitation forecasting by the assimilation of new observations, and in the performance of ensembles of convection-permitting models in complex terrain.
ISSN: 0035-9009

hal-00565513
https://hal.archives-ouvertes.fr/hal-00565513
DOI : 10.1002/qj.752

Éditeur(s) : HAL CCSD Borntraeger Science Publishers
Résumé : This study characterizes the stratigraphical context as well as the palaeoenvironmental and sealevel trends during the Late Frasnian and Famennian in the Buschteich section (Thuringia, Germany). An integrated approach combines conodont biostratigraphy, chemostratigraphy based on carbon and oxygen isotopes, conodont biofacies analyses and investigations of the morphotypes of foraminifera that occur in the section was applied. Conodonts provided a fine-scale biostratigraphical framework. All the Famennian conodont biozones were identified, with the exception of the three lowest. The Frasnian – Famennian transition was further identified by a positive carbon isotope excursion. This continuous Famennian record is developed in a condensed limestone succession. The reddish Griotte facies, typical of strata of this period, were not documented. Black shales were not developed except for an interval of dark colored mud rocks corresponding to the Hangenberg event at the top of the section. The carbonate succession of Buschteich was deposited in an outer ramp environment, pelagic organisms are the dominant fauna. This is corroborated by the overall dominance of the deep-water conodont genus Palmatolepis. Microfacies, conodont biofacies and foramini fera indicated a deepening trend from the Lower crepida to the Lower rhomboidea Zone, followed by a shallowing trend from the Upper rhomboidea to the praesulcata Zone. This sequence overall matches the sea level reference curve for Euramerica. The timing of maximum water depth at Buschteich, as well as the general sea-level reference record, differs from the Col des Tribes (Montagne Noire, France). Differential uplift or overprinting of the long-term eustatic changes may be the cause of the discrepancy in the local sea-level records.
ISSN: 0078-0421

hal-01623111
https://hal.archives-ouvertes.fr/hal-01623111
DOI : 10.1127/nos/2016/0318

Éditeur(s) : HAL CCSD Springer Verlag (Germany) Springer Verlag
Résumé : International audience
Replenished axial melt lenses at fast-spreading mid-oceanic ridges may move upward and intrude into the overlying hydrothermally altered sheeted dikes, resulting in high-grade contact metamorphism with the potential to trigger anatexis in the roof rocks. Assumed products of this process are anatectic melts of felsic composition and granoblastic, two-pyroxene hornfels, representing the residue after partial melting. Integrated Ocean Drilling Program Expeditions 309, 312, and 335 at Site 1256 (eastern equatorial Pacific) sampled such a fossilized oceanic magma chamber. In this study, we simulated magma chamber roof rock anatectic processes by performing partial melting experiments using six different protoliths from the Site 1256 sheeted dike complex, spanning a lithological range from poorly to strongly altered basalts to partially or fully recrystallized granoblastic hornfels. Results show that extensively altered starting material lacking primary magmatic minerals cannot reproduce the chemistry of natural felsic rocks recovered in ridge environments, especially elements sensitive to hydrothermal alteration (e.g., K, Cl). Natural geochemical trends are reproduced through partial melting of moderately altered basalts from the lower sheeted dikes. Two-pyroxene hornfels, the assumed residue, were reproduced only at low melting degrees (<20 vol%). The overall amphibole absence in the experiments confirms the natural observation that amphibole is not produced during peak metamorphism. Comparing experimental products with the natural equivalents reveals that water activity (aH2O) was significantly reduced during anatectic processes, mainly based on lower melt aluminum oxide and lower plagioclase anorthite content at lower aH2O. High silica melt at the expected temperature (1000–1050 °C; peak thermal overprint of two-pyroxene hornfels) could only be reproduced in the experimental series performed at aH2O = 0.1.
ISSN: 0010-7999

hal-01174139
https://hal.archives-ouvertes.fr/hal-01174139
DOI : 10.1007/s00410-015-1136-5

Éditeur(s) : HAL CCSD Elsevier
Résumé : International audience
To quantify the relationships between anisotropy. S-wave splitting and tectonics, we determined the seismic properties of lower-crustal and upper-mantle rocks outcropping in the lvrea Zone (Northem Italy). We obtained P-and S-wave seismic velocities by laboratory direct velocity measurements and/or by calculations based on the modal compositions of the rocks, the lattice preferred orientations (LPOs), and the single crystal stiffness coefficients. Measured P-and S-wave velocities (6.0-7 .5 km s-1 and 3.6-4.2 km s-1) are typical of the lower crust. The P-wave anisotropy is in the range 0-l 0%. Shear-wave birefringence is in the range 0.0-0.6 km s-1 , with typical values between 0.0 and 0.2 km s-1 • In many cases, the birefringence is clearly related to fabric elements (foliation, lineation). Mafic rocks such as anorthosite or pyroxene-bearing gabbros exhibit low P-wave anisotropies (< 5%) and low shear-wave birefringences (less than 0.1 km s-1). In contrast, the seismic properties of felsic rocks such as biotite-bearing gneisses and mafic rocks such as amphibolites display high V P anisotropy (10%) and strong birefringence (0.3 km s-1). Biotite and amphibole preferred orientations clearly control seismic anisotropy and particularly shear-wave splitting. In these rocks, maximum splitting is observed in directions parallel to the foliation with the fast split shear wave polarized parallel to the foliation plane. To have an overview of the seismic properties of this lower-crustal section at a broader scale, we calculated from our data the anisotropie seismic properties of several hypothetical samples that are perhaps more representative of the regional anisotropy than each sample individually. For instance, the average lower-crustal sample displays an anisotropy of 5.5% for P waves and a birefringence around 0.14 km s I for S waves propagating parallel to the foliation. We observe little splitting for waves propagating at high angle to the foliation.
ISSN: 0031-9201

hal-01389712
http://hal.univ-reunion.fr/hal-01389712
http://hal.univ-reunion.fr/hal-01389712/document
http://hal.univ-reunion.fr/hal-01389712/file/Barruol_Kern-PEPI96_hal.pdf
DOI : 10.1016/0031-9201(95)03124-3

Éditeur(s) : HAL CCSD
Résumé : International audience
Anwendungen des infinitesimalmathematik
Oberwolfach, Germany

hal-01535427
https://hal.univ-antilles.fr/hal-01535427