Results 111 to 120 of about 2,059 (169)

Using electrical resistivity techniques (ERT and SP) for nondestructive detection of seepage channels at the Leitai heritage site, China. [PDF]

Sci Rep
Lu K, Li K, Li F, Li Z, Wang P.
europepmc   +1 more source

Volcanic crisis reveals coupled magma system at Santorini and Kolumbo. [PDF]

Nature
Isken MP, Karstens J, Nomikou P, Parks MM, Drouin V, Rivalta E, Crutchley GJ, Haghighi MH, Hooft EEE, Cesca S, Walter TR, Hainzl S, Saul J, Anastasiou D, Raptakis K, Shapiro NM, Münchmeyer J, Higueret Q, Soubestre J, Brenguier F, Hufstetler RS, Autumn KR, Tsakiri M, Lange D, Kopp H, Urlaub M, Blanch Jover M, Preine J, Hübscher C, Motagh M, Müller D, Dahm T, Berndt C.   +32 more
europepmc   +1 more source

Seismic evidence of liquid water at the base of Mars' upper crust. [PDF]

Natl Sci Rev
Sun W, Tkalčić H, Malusà MG, Pan Y.
europepmc   +1 more source

Multidisciplinary approaches to lithological discrimination and structural mapping for mineral resource assessment. [PDF]

Sci Rep
Elfadly MA, Abdelrady M, Decarlis A, Khudeir AA, El-Rus MAA, Abbas H, Hadek HHE, Ibraheem IM, Shebl A.   +8 more
europepmc   +1 more source

A geophysical investigation of the fairy circles in Nebraska for geologic hydrogen exploration. [PDF]

Sci Rep
Zhang M, Perkovich N, Li Y, Weihermann J, Crummett RN.   +4 more
europepmc   +1 more source

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Scaling geology and smooth solutions to inverse problems

SEG Technical Program Expanded Abstracts 1990, 1990
Geophysical inverse problems are often ill-posed and require regularization or smoothing to obtain a physically realistic solution. Methods which determine the amount of smoothing to incorporate into the inversion are generally subjective, either through the choice of mathematical technique or the interpreter’s prior beliefs.
M. Pilkington, J. P. Todoeschuck
openaire   +1 more source

Multiparameter Data-Space Reflectivity Full Waveform Inversion in Complex Geology

Saint Petersburg 2020, 2020
Summary A reliable numerical method to solve inverse dynamic problem for elastic waves equation is proposed. This method is based on nonlinear least-squares formulation which is widely known as Full Waveform Inversion (FWI). The key issue on this way is correct reconstruction of macrovelocity component of the model with input seismic data without time ...
K. Gadylshin, V. Cheverda
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Inverse Problem Using Geology and Geophysics

Proceedings, 2013
Subsurface modeling is a key tool to describe, understand and quantify geological processes. As the subsurface is inaccessible and its observation is limited by acquisition methods, 3D models of the subsurface are usually built from the interpretation of sparse data with limited resolution.
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An 'Inverse CCS Site' in NW Hungary – Geology and Modeling

Proceedings, 2012
The research of natural analogues for future CCS projects is a dynamically growing sector of geoengineering. In our work this newly discovered aspect of a CO2 field is presented. In NW Hungary there is a field utilized for more than 60 years. Thus there is a large amount of data from hydrocarbon exploration, gas measurements, seismic sections, well ...
C.S. Király, M. Berta, Á. Szamosfalvi, G. Falus, C. Szabó   +4 more
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