Results 11 to 20 of about 364 (139)
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract The Changbaishan volcanic field, which includes the Tianchi and Wangtian'e volcanoes in China and the Namphothe volcano in North Korea, is one of the most complex and hazardous volcanic regions on Earth due to its tectonic setting and explosive Holocene activity.
Xiaomeng Niu +9 more
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Magnetotelluric regional strike [PDF]
GEOPHYSICS, 1982 A new method for determining regional strikes from the magnetotelluric impedance tensor Z and tipper T is presented. It involves the minimization of weighted sums of the squared magnitudes of elements of Z or T over all frequencies and all stations of interest.
T. D. Gamble +3 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.Abstract Changes in the physical state of water may alter fault frictional properties in high‐temperature geothermal systems, yet they have been little studied. Here, we perform slide‐hold‐slide experiments to examine the frictional properties (frictional strength μss and frictional healing Δμ) of chlorite‐altered basalt from Krafla Geothermal Field ...
W.‐H. Wu +5 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.Abstract The Wyoming Craton is often cited as an example of decratonization, implying the removal of its lithospheric keel. However, numerous geophysical imaging studies indicate the presence of thick mantle lithosphere beneath much of the Wyoming Craton.
M. J. Bezada +3 more
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Mount Etna as a Leaking Pipe of Magmas From the Low Velocity Zone
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.Abstract Mount Etna, one of the most active volcanoes on Earth, exhibits unusual characteristics in terms of its geological setting, effusion rate, and volatile content. Mount Etna is closely related to the subduction of the Ionian plate below Eurasia, but, chemically, Mount Etna lavas are akin to intraplate magmatism.
Sebastien Pilet +6 more
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Signals and noise in magnetotellurics [PDF]
SEG Technical Program Expanded Abstracts, 1985 Magnetotelluric noise properties were determined as a function of separation using an orthogonal array of stations. The simultaneous recording of high sensitivity biaxial tiltmeters along with the electric and magnetic fields allowed a measurement of the magnetic noise caused by sensor movement within the earth's static field.
Nichols, E., Morrison, H.F., Clarke, J.
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Terra Nova, Volume 38, Issue 2, Page 97-105, April 2026.ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito +4 more
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Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Impedance spectrometry experiments have been conducted on CaCO3 up to 15 GPa and 2,100 K to identify its state under high pressure. The melting temperature of CaCO3 was also determined by the falling of a Re sphere observed via X‐ray radiography. The phase transition from aragonite to the amorphous phase does not cause a leap in the Electrical
Bin Zhao +6 more
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Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Accurate estimates of geothermal heat flow (GHF) are critical for predicting basal melting and identifying stable sites for ancient ice, yet GHF remains one of the least constrained boundary conditions for the Antarctic Ice Sheet. We evaluate nine published Antarctic GHF models against radar‐derived specularity content in the South Pole Basin (
M. Kerr, D. A. Young, S. Yan, C. Pierce
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New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.The Eastern Himalayan Syntaxis (EHS), which is located at the southeastern edge of the Qinghai–Xizang Plateau, is a key region for understanding mountain‐building and subduction processes. Bouguer gravity anomalies derived from the Earth Gravitational Model 2008 free‐air anomaly data following topographic corrections, were analyzed.
Rui Zhang +5 more
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