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Modelling and Interpretation of Global Lithospheric Magnetic Anomalies
After a gap of nearly two decades since the Magsat mission in 1980, the dedicated low-orbit potential field mission CHAMP is now in the third of its seven year mission. Already, the new magnetic total intensity and vector data have yielded maps of the global crustal field of unprecedented accuracy and resolution. Here, we assess the value of these maps
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Teleseismic P‐Wave Attenuation Beneath the Southeastern United States
Seismic attenuation is an important parameter for characterizing subsurface morphology and thermal structure. In this study, we use P‐wave amplitude spectra from 588 teleseismic events recorded by 477 broadband seismic stations in the southeastern United
Ashutosh Shrivastava +2 more
doaj +1 more source
Surface heat flow provides essential information on the thermal state and thickness of the lithosphere. Southern Africa is a mosaic of the best‐preserved and exposed crustal blocks, assembled in the early late Archean and then modified by a series of ...
M. Sobh +3 more
doaj +1 more source
UAVs represent a tremendous opportunity to perform geophysical and repeated experiments, particularly in volcanic contexts. Their ability to be deployed rapidly and fly at various altitudes and the fact that they are easy to operate despite complex field
Erwan Thebault, Lydie-Sarah Gailler
doaj +1 more source
The age and origin of the central Scotia Sea [PDF]
Opening of the Drake Passage gateway between the Pacific and Atlantic oceans has been linked in various ways to Cenozoic climate changes. From the oceanic floor of Drake Passage, the largest of the remaining uncertainties in understanding this opening is
Eagles, Graeme
core +1 more source
Thermal structures of the Pacific lithosphere from magnetic anomaly inversion
Of the world's oceans, the Pacific has the most abundant distribution of seamount trails, oceanic plateaus and hot spots, and has the longest fracture zones. However, little is known of their thermal structures due to difficulties of heat flow measurement and interpretation, and in inferring thermal anomalies from low-resolution seismic velocities ...
Chun-Feng Li, Jian Wang
openaire +2 more sources
The Easternmost Mediterranean is a transition region from the ocean to the continent where the spreading and collision zones of the lithospheric plates join.
Lev V. Eppelbaum +2 more
doaj +1 more source
Improved magnetic anomalies of the Antarctic lithosphere from satellite and near-surface data [PDF]
SUMMARY The Antarctic magnetic anomaly map compiled marine and airborne surveys collected south of 60 ◦ S through 1999 and used Magsat data to help fill in the regional gaps between the surveys. Orsted and CHAMP satellite magnetic observations with greatly improved measurement accuracies and temporal and spatial coverage of the Antarctic, have now ...
Kim, Hyung Rae +5 more
openaire +3 more sources
Rifted margins form from extension and breakup of the continentallithosphere. If this extension is coeval with a region of hotter lithosphere,then it is generally assumed that a volcanic margin would follow.
Armitage, J.J. +3 more
core +1 more source
Compatibility of high-altitude aeromagnetic and satellite-altitude magnetic anomalies over Canada [PDF]
Results from equivalent-source distributions derived jointly from high-altitude (average 4 km) aeromagnetic and Magsat-derived (average 400 km) magnetic anomalies over Canada indicate that long-wavelength components (500–2500 km) in these fields are ...
Pilkington, M. +4 more
core +1 more source

