Results 31 to 40 of about 2,059 (169)
We propose a new waveform inversion method to estimate the 2D S-wave velocity structure of deep sedimentary layers using broadband Love waves. As a preprocessing operation in our inversion scheme, we decompose earthquake observation records into velocity
Kentaro Kasamatsu +2 more
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Dykes, Synclines and Geophysical Inversion - is geology important? [PDF]
In the last 10 years, the average depths of cover for gold and base metal discoveries was 60 and 128 metres respectively (Schodde, 2017). Existing methods of geophysical search techniques appear to lose their practical effectiveness below ~200m. This lack of success has been highlighted as part of the general UNCOVER movement in Australia.
openaire +1 more source
New perspectives on Solid Earth Geology from Seismic Texture to Cooperative Inversion [PDF]
AbstractSeismic and electromagnetic methods are fundamental to Solid Earth research and subsurface exploration. Acquisition cost reduction is making dense 3D application of these methods accessible to a broad range of geo-scientists. However, the challenge of extracting geological meaning remains.
Le, Cuong Van Anh +2 more
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Prospective Proterozoic units in the southern Mount Isa Province are concealed by a poorly defined extent of younger basin cover, leading to poor exploration success.
Janelle M. Simpson, Graham Heinson
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Multiple data sets are typically collected in an airborne survey. The standard way of interpreting multiple airborne data sets is to invert them separately to obtain a set of physical property models, e.g., a density contrast and a susceptibility model. There are two issues with this approach.
Sun, J., Wei, X.
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We present velocity structure inversion for three stations of Iranian Strong Motion Network (ISMN), and one KiK-net station that is used as a benchmark, for the application of diffuse wave-field concept in tectonic and geological setting of the west of ...
Iman Ashayeri, Eri Ito, Hiroshi Kawase
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: Drilling results suggest that the thickness of natural gas hydrates (NGHs) in the Shenhu Area, South China Sea (SCS) are spatially heterogenous, making it difficult to accurately assess the NGHs resources in this area.
Shu-yu Wu +7 more
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Based on the concept of geology-engineering integration, a systematic research, including theoretical study and field investigation, has been performed on design optimization, implement control and post-frac management of the whole lifecycle of ...
JIANG Tingxue +5 more
doaj
Seabed topography beneath Larsen C Ice Shelf from seismic soundings [PDF]
Seismic reflection soundings of ice thickness and seabed depth were acquired on the Larsen C Ice Shelf in order to test a sub-ice shelf bathymetry model derived from the inversion of IceBridge gravity data.
A. M. Brisbourne +5 more
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The Abu Jir fault zone in western Iraq that marks the western limit of the Zagros foreland basin merges with the Anah graben in the north. The northern segment of the Abu Jir fault zone and the western Anah graben are inverted structures.
Abdulkhaleq Alhadithi +2 more
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