Results 91 to 100 of about 10,989 (307)

The Glacial Legacy of the Geneva Basin: Morphology and implications of an intricate tunnel valley system revealed from 3D seismic data

Journal of Quaternary Science, EarlyView.
ABSTRACT Like other perialpine basins and glaciated margins, the Geneva Basin in SW Switzerland is characterised by buried tunnel valleys, which are elongated incisions widely attributed to subglacial meltwater erosion beneath continental ice sheets. However, an inclusive understanding of the geological control on the evolution of the glacial landscape
Ovie Emmanuel Eruteya, Emna Meftah, Andrea Moscariello   +2 more
wiley   +1 more source

Neural Network Nodal Ambient Noise Tomography of a transient plumbing system under unrest, Vulcano, Italy

Nature Communications
Volcanic risk escalates significantly during unrest. In late 2021, the Italian island of Vulcano entered into a phase of unrest featuring Very Long Period seismic events, which are considered to be markers of magma and gas flowing across the volcanic ...
Douglas Sami Stumpp, Iván Cabrera-Pérez, Geneviève Savard, Tullio Ricci, Mimmo Palano, Salvatore Alparone, Andrea Ursino, Federica Sparacino, Anthony Finizola, Francisco Muñoz Burbano, María-Paz Reyes Hardy, Joël Ruch, Costanza Bonadonna, Matteo Lupi   +13 more
doaj   +1 more source

The lithosphere-asthenosphere boundary in the North-West Atlantic region [PDF]

, 2005
A detailed knowledge of the thickness of the lithosphere in the north Atlantic is an important parameter for understanding plate tectonics in that region.
Schweitzer, J., Reigber, C., Woelbern, I., Schwintzer, P., Wylegalla, K., Wolf, D., Larsen, T., Priestley, K., Fleming, K., Larsen, T. B., Kind, R., Hanka, W., Dahl-Jensen, T., Kumar, P., Yuan, X., Fleming, Kevin, Gudmundsson, O.   +16 more
core   +1 more source

From Highlands to Henge: Refining the Provenance and Transport Pathways of Stonehenge's Altar Stone

Journal of Quaternary Science, EarlyView.
ABSTRACT The Altar Stone, the 6000 kg central sandstone megalith at Stonehenge in southern England, is suggested to have originated from the Orcadian Basin in northeast Scotland, some 700 km away. However, its source location within this large basin remains unresolved and its mode of transport uncertain.
Anthony J. I. Clarke, Remy L. J. Veness, Christopher L. Kirkland, Chris D. Clark, Niall Gandy, Andy Emery, Sarah L. Bradley, Jeremy C. Ely, Ignéczi Ádám   +8 more
wiley   +1 more source

Seismic stratigraphy and marine magnetics of the Naples Bay (Southern Tyrrhenian sea, Italy): the onset of new technologies in marine data acquisition, processing and interpretation [PDF]

, 2012
Seismic stratigraphy and marine magnetics in the case histories of the Somma-Vesuvius volcanic complex, Phlegrean Fields offshore and Ischia and Procida islands offshore (Naples Bay, Southern Tyrrhenian sea) are here discussed.
Aiello, Gemma, Giordano, Laura, Marsella , Ennio, Ennio Marsella, Salvatore Passaro, Gemma Aiello, Laura Giordano, Passaro , Salvatore   +7 more
core   +1 more source

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Inversion Imaging Research of Cross Hole Seismic CT in Complex Karst Areas: Guiyang Metro Line 3 under Construction Presented as an Example

CT Lilun yu yingyong yanjiu
This article used Guiyang Metro Line 3 under construction as an example to study the application of cross hole seismic computed tomography (CT) technology in the exploration process of Karst complex areas, thereby revealing the characteristics of Karst ...
Zhanfeng TIAN, Shijian PEI, Qiang YU
doaj   +1 more source

Assessing and improving seismic tomography models using 3-D numerical wave simulations. Geologica Ultraiectina (308)

, 2009
We have reached a stage in seismic tomography where further refinements with classical techniques become very difficult. Advances in numerical methods and computational facilities are providing new opportunities in seismic tomography to enhance the ...
Seismology, Thermodynamic interpretation of seimic tomography in the lower mantle, EU SPICE: Seismic wave Propagation and Imaging in Complex media: a European network., Bozdag, H.E.   +3 more
core  

A seismological study of the mantle beneath Iceland [PDF]

, 2000
Iceland has long been thought to be underlain by a thermal upwelling, or plume, rising from deep within the mantle. This study tests this hypothesis, by a) seeking evidence for a plume in the lower mantle in azimuth anomalies at the NORSAR array and b ...
Pritchard, Matthew James, Pritchard, M.J.   +1 more
core  

Three-dimensional joint inversion of traveltime and gravity data across the Chicxulub impact crater

, 2009
In 2005 an extensive new seismic refraction data set was acquired over the central part of the Chicxulub impact crater, allowing us to image its structure with much better resolution than before.
Morgan, J. V., Christeson, G.L., Vermeesch, P. M., Morgan, J.V., Surendra, A., Christeson, G. L., Barton, P.J., Vermeesch, P.M., Barton, P. J.   +8 more
core   +1 more source