Results 41 to 50 of about 382,485 (102)

Upper crustal structure of an active volcano from refraction/reflection tomography, Montserrat, Lesser Antilles [PDF]

, 2010
To better understand the volcanic phenomena acting on Montserrat, the SEA-CALIPSO seis-mic experiment (Seismic Experiment with Airgun-source – Caribbean Andesitic Lava Island Precision Seismo-geodetic Observatory) was conducted in 2007 December with the ...
Henstock, T, Kiddle, E.J., Kenedi, CL, Baptie, Brian, Hammond, J.O.S., Minshull, T., Henstock, T., Malin, Peter, Ryan, G., Paulatto, M, Shalev, E, Hammond, James O.S., Hammond, JOS, Paulatto, Michele, Baptie, B., Dean, S, Minshull, T. A., Kiddle, E., Minshull, TA, Malin, P, Voight, B., Paulatto, M., Minshull, T.A., Voight, B, Sparks, R.S.J., Kenedi, C., Dean, S., Sparks, RSJ, Shalev, E., Peirce, C., Baptie, B, Kenedi, C.L., Malin, P., Kiddle, EJ, Ryan, G, Peirce, C   +35 more
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Deep crustal electromagnetic structure of Bhuj earthquake region (India) and its implications [PDF]

, 2010
The existence of fluids and partial melt in the lower crust of the seismically active Kutch rift basin (on the western continental margin of India) owing to underplating has been proposed in previous geological and geophysical studies. This hypothesis is
Ledo Fernández, Juan José, LEDO FERNÁNDEZ, J., Ledo, Juan José, Queralt, Pilar, Queralt, P., Naganjaneyulu, K., Ledo Fernández, Juanjo, Queralt i Capdevila, Pilar   +7 more
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Crustal Structure of Active Deformation Zones in Africa: Implications for Global Crustal Processes

, 2017
The Cenozoic East African rift (EAR), Cameroon Volcanic Line (CVL), and Atlas Mountains formed on the slow‐moving African continent, which last experienced orogeny during the Pan‐African.
C. Ebinger, D. Keir, I. Bastow, K. Whaler, J. Hammond, A. Ayele, M. Miller, C. Tiberi, S. Hautot   +8 more
semanticscholar   +1 more source

A three-dimensional study of a crustal low velocity region beneath the 9°03′N overlapping spreading center [PDF]

, 2003
Overlapping spreading centers (OSCs) play a key role in models of magma distribution at fast spreading ridges. To investigate the relationship between ridge-axis discontinuities and magma supply, we conducted a three-dimensional seismic reflection and ...
Harding, A.J., Pye, J, Kent, GM, Tong, CH, Tong, C.H., Sinha, MC, White, R.S., van Avendonk, H.J.A., Hobbs, R.W., Pye, J.W., Bazin, S, Harding, AJ, Barton, PJ, Hobbs, RW, Kent, G.M., Barton, P.J., Sinha, M.C., HJA, VA, Bazin, S., Orcutt, J.A., Singh, SC, Orcutt, JA, White, RS, Singh, S.C.   +23 more
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Programa de Pós-Graduação em Geologia - 2003 - Teses Defendidas - Doutorado - Instituto de Geociências, UFRJ [PDF]

Anuário do Instituto de Geociências, 2003
181 Anuário do Instituto de Geociências - UFRJ Volume 26 / 2003 Programa de Pós-Graduação em Geologia Teses Defendidas - Doutorado Autor: Paulo Roberto de Figueiredo Souto Orientador: Ismar de Souza Carvalho Título: Coprólitos do Cretáceo do Brasil
doaj  

Quantifying crustal thickness over time in magmatic arcs

Scientific Reports, 2015
We present global and regional correlations between whole-rock values of Sr/Y and La/Yb and crustal thickness for intermediate rocks from modern subduction-related magmatic arcs formed around the Pacific.
L. Profeta, M. Ducea, J. Chapman, S. Paterson, S. Gonzáles, M. Kirsch, L. Petrescu, P. DeCelles   +7 more
semanticscholar   +1 more source

The influence of surface clinker on the crustal structures and dynamics of 'a'ā lava flows. [PDF]

, 2010
Surface structures on 'a'ā and blocky lavas reflect the internal flow dynamics during emplacement and also influence the dynamics of developing flows.
Pinkerton, Harry, Van Wyk de Vries, B., James, Mike R., Applegarth, Louisa Jane   +3 more
core   +2 more sources

A joint geochemical–geophysical record of time-dependent mantle convection south of Iceland [PDF]

, 2014
The North Atlantic V-Shaped Ridges (VSRs) provide a spatially extensive and clear record of unsteady mantle convective circulation over >40 My>40 My.
Jones, S.M.; id_orcid, White, Nicholas J., Murton, Bramley, Maclennan, John, Jones, Steve, Walters, Rachel J., Walters, R.L., White, Nicky, Maclennan, J., Murton, Bramley J., Fitton, J.G., Fitton, J. G., Jones, S.M., Fitton, J. Godfrey, White, N.J., Murton, B.J., Jones, Stephen M.   +16 more
core   +1 more source

Seismic imaging of crustal structure at mid-ocean ridges: a three-dimensional approach [PDF]

, 2001
Over recent years geological, geochemical and geophysical surveys of mid-ocean ridges have revealed a significant degree of along-axis variability not only in seabed morphology, but also in crustal structure, particularly Numerous geophysical surveys of ...
Day, Anthony J., Day, A.J.
core  

On ultrahigh temperature crustal metamorphism: phase equilibria, trace element thermometry, bulk composition, heat sources, timescales and tectonic settings

, 2015
Ultrahigh temperature (UHT) metamorphism is the most thermally extreme form of regional crustal metamorphism, with temperatures exceeding 900 °C. UHT crustal metamorphism is recognised in more than 50 localities globally in the metamorphic rock record ...
D. Kelsey, M. Hand
semanticscholar   +1 more source