Sample records for GEOFISICOS (geophysics)
from WorldWideScience.org

Sample records 1 - 20 shown. Select sample records:



1

Geofisica del cuerpo ultramáfico de la mina Salamanca, provincia de Mendoza/ Geophysics of the Mina Salamanca ultramafic body, Province of Mendoza.

Kostadinoff, J.; Bjerg, E. A.; Gregori, D.; Richarte, D.; Robles, J. A.; Raniolo, A.
2004-03-01

Resumen en español La faja de rocas máficas-ultramáficas de la Cordillera Frontal de Mendoza es considerada como una ofiolita desmembrada. La presencia en las rocas ultramáficas serpentinízadas portadoras de mineralizaciónes de talco, sulfuros polimetálicos y de elementos del grupo del platino (EGP) constituyen un atractivo para la realización de prospecciones geofísicas. La metodología de trabajo consistió en medir una red de estaciones geofísicas (gravimetría y magnetometría) (mas) , en el área de la mina Salamanca. Los resultados permitieron evaluar las reservas de talco y calibrar un modelo de prospección geofísica para los sulfuros polimetálicos presentes en la faja de rocas máficas - ultramáficas de la Cordillera Frontal. Resumen en inglés The Mendoza Cordillera Frontal mafic- ultramafic belt is considered as a dismembered ophiolite. The presence of talc, polymetallic sulphides and platinum group elements (PGE) in the serpentinised ultramafic body make this area an interesting target for geophysical prospecting. Gravimetric and magnetometric measurements, made on a network of stations covering the whole Salamanca mine area, enable us to evaluate talc reserves and calibrate a model for polymetallic suphides surveys along the entire Cordillera Frontal mafic-ultramafic belt.

Scientific Electronic Library Online (Spanish)

2

Factores que dan origen al minado de acuíferos en ambientes áridos: caso Valle de San Luis Potosí/ Factors causing the mining of aquifers in arid environments: case of San Luis Potosí valley

Noyola-Medrano, María Cristina; Ramos-Leal, José Alfredo; Domínguez-Mariani, Eloísa; Pineda-Martínez, Luis Felipe; López-Loera, Héctor; Carbajal, Noel
2009-08-01

Resumen en español El análisis de datos históricos y recientes de hidrogeología, geofísica, cambio de uso del suelo, clima y las prácticas de manejo del recurso hídrico apuntan a una continua disminución de los volúmenes de agua subterránea. Esto revela que el acuífero del Valle de San Luis Potosí se comporta como un recurso minado. El sistema está formado por un acuífero somero en medio granular en depósitos aluviales, un acuífero intermedio de material sedimentario compuest (mas) o por gravas, arenas y limos semiconsolidados y un acuífero profundo en un medio fracturado de origen volcánico, denominado Latita Portezuelo. Los factores que afectan negativamente la recarga hacia el valle son: la baja permeabilidad de los materiales rocosos que bordean al valle y que inhiben la infiltración hacia el subsuelo, la baja precipitación y alta evaporación característica de regiones áridas, la erosión de suelos deforestados en las sierras aledañas que impiden la retención de agua, y la construcción de presas en materiales rocosos de baja permeabilidad que reducen drásticamente el flujo de agua a zonas de infiltración en el valle. Adicionalmente, las edades del agua en el medio granular van de 1300 a 2300 años, mientras que en el medio fracturado van de 5300 a 6300 años, indicando ritmos muy lentos de recarga. Los últimos balances hidrogeológicos anuales correspondientes a los años 1995 y 2002 indican que el déficit se incrementó de 36.6×10(6) a 42.5×10(6) m³/año. Estos balances coinciden en la existencia de un desequilibrio en la extracción que duplica a la recarga, y dadas las condiciones climáticas del área, conlleva a una condición de minado del agua subterránea en el Valle de San Luis Potosí. Resumen en inglés The analysis of historical and recent data on hydrology, geophysics, land use change, climate and water resources management points to a continue decrease of groundwater reserves, which indicates that groundwater mining is taking place in the San Luis Potosi Valley aquifer. The system is formed by a shallow aquifer in a granular medium in alluvial depositions, a middle one of sedimentary material formed by gravels, sands and unconsolidated loams, and a deep aquifer in a v (mas) olcanic fractured medium, named Latita Portezuelo. The factors negatively affecting the recharge into the valley are: a low permeability of rocky materials surrounding the valley that inhibit the water infiltration into the soil, the scarce precipitation and high evaporation characteristic of arid zones, the soil erosion by deforestation in mountain ranges that prevent water retention, and water dams built on low permeability materials that restrain water runoff to infiltration zones in the valley. Additionally, the ages of the water in the granular aquifer range from 1300 to 2300 years and from 5300 to 6300 years in the fractured aquifer. Hydrogeological balances from 1995 and 2002 show that the deficit has increased from 36.6×10(6) to 42.5×10(6) m³/year. These balances reveal a shortage, with extraction doubling the recharge. According to the climatic and geological conditions in the area, the groundwater in the San Luis Potosi Valley reached a condition of mining.

Scientific Electronic Library Online (Spanish)

3

What is it underneath the core of the Asturian Arc? Detital mica ages finish Eduard Suess tale

Gutiérrez-Alonso, G.; Fernández-Suárez, J.; Collins, Alan S.; Abad, Isabel; Nieto, F.
2005-01-01

Digital.CSIC (Spain)

4

Vortex Rossby waves in mesoscale dipoles

Rodríguez-Marroyo, Rocío; Viúdez, Álvaro
2009-10-01

Digital.CSIC (Spain)

5

Topography and self-gravitation interaction in elastic-gravitational modeling

Charco, María; Luzón, Francisco; Fernández Torres, José; Tiampo, Kristy F.
2007-01-05

Digital.CSIC (Spain)

6

Three-dimensional indirect boundary element method for deformation and gravity changes in volcanic areas: application to Teide volcano (Tenerife, Canary Islands)

Charco, María; Luzón, Francisco; Fernández Torres, José; Tiampo, Kristy F.; Sánchez-Sesma, Francisco José
2007-08-11

Digital.CSIC (Spain)

9

Subduction-related structures in the North Iberian Margin

Alvarez-Marrón, Joaquina; Rubio, Luis Eduardo; Torné, Montserrat
1997-10-10

Digital.CSIC (Spain)

10

Structural results for La Palma island using 3-D gravity inversion

Camacho, A. G.; Fernández Torres, José; González Méndez, Pablo José; Rundle, J. B.; Prieto, Juan Francisco; Arjona, Alicia
2009-01-01

Digital.CSIC (Spain)

11
13

Spatiotemporal gravity changes on volcanoes: Assessing the importance of topography

Charco, María; Camacho, A. G.; Tiampo, Kristy F.; Fernández Torres, José
2009-01-01

Digital.CSIC (Spain)

14

Spatial patterns in chemically and biologically reacting flows

Hernández-García, Emilio; López, Cristóbal; Neufeld, Zoltan
2003-09-01

Digital.CSIC (Spain)

17

Present-day stress field in the Gibraltar Arc (western Mediterranean)

Fernández-Ibáñez, F.; Soto, J. I.; Zoback, M. D.; Morales, J.
2007-08-01

Digital.CSIC (Spain)

19

Plankton blooms in vortices: The role of biological and hydrodynamic time scales

Sandulescu, Mathias; López, Cristóbal; Hernández-García, Emilio; Feudel, Ulrike

ArXiv pre-print: http://arxiv.org/abs/0802.3973.-- Final full-text version of the paper available at: http://www.nonlin-processes-geophys.net/14/443/2007/. | The paper is licensed under a Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/2.0/deed.en), which allows broad distribu...

DRIVER (Spanish)

20

Plankton blooms in vortices: The role of biological and hydrodynamic time scales

Sandulescu, Mathias; López, Cristóbal; Hernández-García, Emilio; Feudel, Ulrike
2007-08-02

Digital.CSIC (Spain)

21

Ocean tide loading effects on new gravity tide measurements made at south of Spain

Arnoso, José; Benavent, M.; González Montesinos, Fuensanta
2010-01-01

Digital.CSIC (Spain)

22

Noise-sustained currents in quasigeostrophic turbulence over topography

Álvarez, Alberto; Hernández-García, Emilio; Tintoré, Joaquín

15 pages, 4 figures.-- PACS nrs.: 05.40.+j; 92.90.+x; 47.27.Eq.-- ArXiv pre-print available at: http://arxiv.org/abs/chao-dyn/9701009 | We study the development of directed mean currents in a nonlinear model of fluid flow appropriate for large-scale ocean dynamics in the presence of bottom topograph...

DRIVER (Spanish)

23

Noise-induced flow in quasigeostrophic turbulence with bottom friction

Álvarez, Alberto; Hernández-García, Emilio; Tintoré, Joaquín

4 pages.-- PACS nrs.: 05.40.-a; 47.90.+a; 92.90.+x.-- Printed version published Oct 11, 1999.-- ArXiv pre-print available at: http://arxiv.org/abs/chao-dyn/9905022 | Randomly-forced fluid flow in the presence of scale-unselective dissipation develops mean currents following topographic contours. Kno...

DRIVER (Spanish)

24

No tillage effect on water retention characteristics of soil aggregates in rainfed semiarid conditions

Blanco Moure, Nuria; López Sánchez, María Victoria; Moret Fernández, David
2010-01-01

Digital.CSIC (Spain)

25

New representation of geomagnetic secular variation over restricted regions by means of spherical cap harmonic analysis: application to the case of Spain

Torta, Joan Miquel; García, A.; Curto, Juan José; De Santis, A.

Final full-text version of the paper available at: http://www.sciencedirect.com/science/journal/00319201 | A model of the secular variation (SV) of the geomagnetic field over Spain and adjacent regions, using a particular application of spherical cap harmonic analysis (SCHA), is given. SCHA was dire...

DRIVER (Spanish)

27

New insights into ocean tide loading corrections on tidal gravity data in Canary Islands

Arnoso, José; Benavent, M.; Bos, M. S.; González Montesinos, Fuensanta
2009-01-01

Digital.CSIC (Spain)

28

New evidence for the reawakening of Teide volcano

Gottsmann, Joachim; Wooller, Luke K.; Martí, J.; Fernández Torres, José; Camacho, A. G.; González Méndez, Pablo José; García García, Alicia; Rymer, Hazel
2006-10-25

Digital.CSIC (Spain)

29

Modeling of stress changes at Mayon Volcano, Philippines

Tiampo, Kristy F.; Fernández Torres, José; Hayes, T. J.; Jentzsch, Gerhardt
2007-04-01

Digital.CSIC (Spain)

30

Model simulations of the Bay of Fundy Gyre: 1. Climatological results

Aretxabaleta, Alfredo L.; McGillicuddy Jr., Dennis J.; Smith, Keston W.; Lynch, Daniel R.
2008-10-29

Digital.CSIC (Spain)

31

Model Simulations of the Bay of Fundy Gyre: 2. Hindcasts for 2005-2007 Reveal Interannual Variability in Retentiveness.

Aretxabaleta, Alfredo L.; McGillicuddy Jr., Dennis J.; Smith, Keston W.; Manning, James P.; Lynch, Daniel R.
2009-09-03

Digital.CSIC (Spain)

32

Mixing structures in the Mediterranean Sea from Finite-Size Lyapunov Exponents

d'Ovidio, Francesco; Fernández, Vicente; Hernández-García, Emilio; López, Cristóbal

7 pages, 6 figures.-- AGU Index terms: 4568, 3220, 3240, 4255, 4572.-- ArXiv pre-print available: http://arxiv.org/abs/nlin/0404041 | We characterize horizontal mixing and transport structures in the surface circulation of the Mediterranean Sea, as obtained from a primitive equation circulation mode...

DRIVER (Spanish)

33

Mixing structures in the Mediterranean Sea from Finite-Size Lyapunov Exponents

d'Ovidio, Francesco; Fernández, Vicente; Hernández-García, Emilio; López, Cristóbal
2004-09-02

Digital.CSIC (Spain)

34

Microhabitats and Chemical Microenvironments under Saxicolous Lichens Growing on Granite

Ríos, Asunción de los; Wierzchos, Jacek; Ascaso, Carmen
2001-10-22

Digital.CSIC (Spain)

35

Long-term versus short-term deformation processes at Tenerife (Canary Islands)

Tizzani, P.; Manconi, Andrea; Zeni, G.; Pepe, A.; Manzo, M.; Camacho, A. G.; Fernández Torres, José
2010-12-16

Digital.CSIC (Spain)

36

Long-term effect of conservation tillage on structural properties and organic carbon in aggregates of a Mediterranean loamy soil

Blanco Moure, Nuria; López Sánchez, María Victoria; Angurel, Luis. A.; Limón, M. Ángeles; Gracia Ballarín, Ricardo
2010-01-01

Digital.CSIC (Spain)

38

Lead pollution and podzolisation in NW Spain

Ferro Vázquez, C.; Nóva Muñoz, J. C.; Costa-Casais, M.; Ferrín Prieto, C.; Martínez Cortizas, A.
2006-01-01

Digital.CSIC (Spain)

39

Joint interpretation of displacements and gravity data in volcanic areas. A test example: Long Valley Caldera, California

Fernández Torres, José; Charco, María; Tiampo, Kristy F.; Jentzsch, Gerhardt; Rundle, J. B.
2001-03-15

Digital.CSIC (Spain)

40

Introduction: Linking Earth Sciences and Mathematics

Camacho, A. G.; Díaz, J. I.; Fernández Torres, José
2008-01-01

Digital.CSIC (Spain)

41

Introduction to Earth Sciences and Mathematics, Volume II

Camacho, A. G.; Díaz, J. I.; Fernández Torres, José
2008-01-01

Digital.CSIC (Spain)

42

Intercomparison of Momentary Values: an Application to Check the Reliability of Ebre Observatory Data

Marsal, Santiago; Curto, Juan José

Intercomparison of momentary values from observatories across Europe has been used as a test of reliability for the magnetic stations of this area, as well as for the whole net. One of the techniques used, based on the standard deviation of the mutual differences of monthly mean values, has permitte...

DRIVER (Spanish)

43
44

Integrated geophysical-petrological modeling of the lithosphere and sublithospheric upper mantle: Methodology and applications

Afonso, Juan Carlos; Fernández, Manel; Ranalli, G.; Griffin, W. L.; Connolly, J. A. D.
2008-01-01

Digital.CSIC (Spain)

45

Inflation or deflation? New results for Mayon volcano applying elastic-gravitational modeling

Fernández Torres, José; Tiampo, Kristy F.; Jentzsch, Gerhardt; Charco, María; Rundle, J. B.
2001-06-15

Digital.CSIC (Spain)

46

Inferences from gravity data interpretation of the volcanic complexes of the Terceira Island (Azores)

González Montesinos, Fuensanta; Nunes, Joao Carlos; Arnoso, José; Luque Martínez, Teresa; Medeiros, Sara; Benavent, M.; Vieira, Ricardo
2010-01-01

Digital.CSIC (Spain)

47

Imaging meddy finestructure using multichannel seismic reflection data

Biescas, Berta; Sallarès, Valentí; Pelegrí, Josep Lluís; Machín, Francisco; Carbonell, Ramón; Buffet, Grant; Dañobeitia, Juan José; Calahorrano, Alcinoe
2008-06-14

Digital.CSIC (Spain)

48

Holocene climate variability in the western Mediterranean region from a deepwater sediment record

Frigola, J.; Moreno, Ana; Cacho, Isabel; Canals, Miquel; Sierro, Francisco Javier; Flores, José Abel

16 pages, 2 tables, 6 figures. | The detailed analysis of the International Marine Past Global Changes Study core MD99-2343 recovered from a sediment drift at 2391 m water depth north of the island of Minorca illustrates the effects of climate variability on thermohaline circulation in the western M...

DRIVER (Spanish)

49

Halogens (Cl and Br) accumulation in podzols from NW Spain

Martínez Cortizas, A.; Ferro Vázquez, C.; Ferrín Prieto, C.; Costa-Casais, M.; Nóva Muñoz, J. C.
2006-01-01

Digital.CSIC (Spain)

50

Gravity inversion for modelling of subsurface structures associated to the volcanic evolution of La Gomera island (Canarian Archipelago, Spain)

González Montesinos, Fuensanta; Arnoso, José; Luque Martínez, Teresa; Benavent, M.; Vieira, Ricardo
2009-01-01

Digital.CSIC (Spain)

51

Gravity changes from a stress evolution earthquake simulation of California

Hayes, T. J.; Tiampo, Kristy F.; Rundle, J. B.; Fernández Torres, José
2006-09-01

Digital.CSIC (Spain)

52

Global climate imprint on seismic noise

Stutzmann, E.; SchimmelPatau, Martin G., Maggi, A.; Patau, G.; Maggi, A.
2009-11-01

Digital.CSIC (Spain)

54

Geomagnetism at Ebro: Presents and Futures

Curto, Juan José; Torta, Joan Miquel; Cardús, Josep Oriol; Sanclement, Ernest; Alberca, Luis F.; Marsal, Santiago

Póster presentado en el International Workshop "Challenges for Geomagnetism Aeronomy and Seismology in the XXI Century: on the occasion of the Centennial Of Ebro Observatory", celebrado en Roquetes, Tarragona, España, 29 septiembre - 10 octubre 2004. | Nowadays many research activities and services ...

DRIVER (Spanish)

55

Geomagnetic secular variation over Spain 1970–1988 by means of spherical cap harmonic analysis

García, A.; Torta, Joan Miquel; Curto, Juan José; Sanclement, Ernest

Final full-text version of the paper available at: http://www.sciencedirect.com/science/journal/00319201 | A spherical cap harmonic analysis was applied to Spain and neighbouring areas, covering a region with a cap half-angle of 16°. The technique, due to Haines, has allowed us to obtain a model of ...

DRIVER (Spanish)

58

Fault architecture and related distribution of physical properties in granitic massifs: geological and geophysical methodologies

Martí, David; Escuder Viruete, J.; Carbonell, Ramón; Flecha, I.; Pérez-Estaún, Andrés
2006-01-01

Digital.CSIC (Spain)

59

Expansive clays and hydroclimatic controls as conditioning factors of mass movements in SE Spain

Azañón, José Miguel; Azor, Antonio; Delgado, J.; Garrido, J.; López Chicano, Manuel; Martín-Rosales, Wenceslao; Nieto, F.; Rodríguez-Fernández, José; Yesares, Jesús
2004-01-01

Digital.CSIC (Spain)

60

Evidence for an eastward flow along the Central and South American Caribbean Coast

Andrade, Carlos Alberto; Barton, Eric D.; Mooers, Christopher N. K.
2003-06-12

Digital.CSIC (Spain)

61

Effects of shear in the convective boundary layer: analysis of the turbulent kinetic energy budget

Pino, David; Vilà-Guerau de Arellano, Jordi

The original publication is available at www.springerlink.com.-- Final edited version available at: http://dx.doi.org/10.2478/s11600-007-0037-z | Effects of convective and mechanical turbulence at the entrainment zone are studied through the use of systematic Large-Eddy Simulation (LES) experiments....

DRIVER (Spanish)

64

Early instrumental observations from the Mediterranean Area in the Observatori de l'Ebre

Genescà, María; García Herrera, Ricardo; Calvo, N.; Barriopedro, David

Presented at: First MedCLIVAR Workshop on Reconstruction of Past Mediterranean Climate. | The Ebro Observatory was founded by the Jesuits in 1904 in Roquetes, Tarragona, near the Jesuit Faculty of Philosophy and Theology in Jesús, Tortosa and near the Ebro Delta (NE Spain). Since then it has been ac...

DRIVER (Spanish)

68

Decadal time-series of SeaWiFS retrieved CDOM absorption and estimated CO2 photoproduction on the continental shelf of the eastern United States

Del Vecchio, Rossana; Subramaniam, Ajit; Schollaert Uz, Stephanie; Ballabrera-Poy, Joaquim; Brown, Christopher W.; Blough, Neil V.
2009-01-17

Digital.CSIC (Spain)

69

Comparative study of mixing and biological activity of the Benguela and Canary upwelling systems

Rossi, Vincent; López, Cristóbal; Sudre, J.; Hernández-García, Emilio; Garçon, V.
2008-06-07

Digital.CSIC (Spain)

70

Combined use of the GGSFT data base and on board marine collected data to model the Moho beneath the Powell Basin, Antarctica

Galindo-Zaldívar, Jesús; Suriñach, E.; Chávez, R. E.; Maldonado, A.; Flores Márquez, E. L.

The Powell Basin is a small oceanic basin located at the NE end of the Antarctic Peninsula developed during the Early Miocene and mostly surrounded by the continental crusts of the South Orkney Microcontinent, South Scotia Ridge and Antarctic Peninsula margins. Gravity data from the SCAN 97 cruise o...

DRIVER (Spanish)

71

Characterization of NH4-bearing Micas in Carpholite Metapelites from Amorgos (Greece)

Nieto, F.; Mata, M. Pilar; Goffé, B.; Azañón, José Miguel
2003-01-01

Digital.CSIC (Spain)

72

Analysis of ground tilt measurements made in El Hierro (Canary Islands)

Arnoso, José; González Montesinos, Fuensanta; Benavent, M.
2008-01-01

Digital.CSIC (Spain)

73

Analysis of ammonium in white micas by EELS

Livi, K.; Abad, Isabel; Nieto, F.; Veblen, David
2006-01-01

Digital.CSIC (Spain)

75

An Assessment of the BGS δDδI Vector Magnetometer

Marsal, Santiago; Torta, Joan Miquel; Riddick, John C.

Assuming optimal conditions, the δDδI vector magnetometer can be considered as a semi-absolute instrument. In this paper, the real situation and its differences with the ideal one are critically examined and regarded as potential sources of error. The analysis is applied to the equipment designed by...

DRIVER (Spanish)