Results 31 to 40 of about 220,882 (295)

Crustal structure of the Borderland-Continent Transition Zone of southern California adjacent to Los Angeles [PDF]

, 2003
We use data from the onshore-offshore component of Los Angeles Region Seismic Experiment (LARSE) to model the broad-scale features of the midcrust to upper mantle beneath a north-south transect that spans the continental borderland in the Los Angeles ...
Clayton, Robert W., Nazareth, Julie J.
core   +1 more source

Hot mantle upwelling across the 660 beneath Yellowstone [PDF]

, 2012
P-to-s receiver functions mapped to depth through P and S body-wave tomography models image continuous 410 and 660 km discontinuities beneath the area covered by USArray prior to the year 2011. Mean depths to the 410 and 660 km discontinuities of 410 and
Dueker, Kenneth, Hansen, Steven, Humphreys, Eugene, Schmandt, Brandon   +3 more
core   +1 more source

Remnant of the late Permian superplume that generated the Siberian Traps inferred from geomagnetic data

Nature Communications, 2023
Discovering ancient mantle plumes is challenging. By combining electrical conductivity with mineral physics modelling, this work finds a remnant of an ancient plume trapped in the mantle transition zone and sheds new light on mantle plume physics.
Shiwen Li, Yabin Li, Yanhui Zhang, Zikun Zhou, Junhao Guo, Aihua Weng   +5 more
doaj   +1 more source

Features of the velocity structure of the mantle under the Precambrian structures on the example of the Indian platform (according to seismic tomography)

Геофизический журнал, 2021
The paper presents additional data, approaching to understanding the driving forces in the formation of geological structures and the development of the Indian platform.
L.N. Zaiets, I.V. Bugaienko, T.A. Tsvetkova   +2 more
doaj   +1 more source

Mantle transition zone thickness beneath Ross Island, the Transantarctic Mountains, and East Antarctica

Geophysical Research Letters, 2008
The thickness of the mantle transition zone beneath Ross Island, and parts of the Transantarctic Mountains and East Antarctic Craton has been mapped using data from the 2000–2003 Transantarctic Mountain Seismic Experiment to determine if, as indicated by
Angela Marie Reusch, Andrew A. Nyblade, Margaret H. Benoit, Douglas A. Wiens, Sridhar Anandakrishnan, Donald Voigt, Patrick J. Shore   +6 more
doaj   +1 more source

Primary carbonatite melt from deeply subducted oceanic crust [PDF]

, 2008
Partial melting in the Earth's mantle plays an important part in generating the geochemical and isotopic diversity observed in volcanic rocks at the surface.
A Kubo, A Zindler, A. R. Lennie, AW Hofmann, B Harte, B Harte, C. B. Smith, CE Manning, DA Ionov, E Hauri, F Kaminsky, FE Brenker, FE Brenker, G. Gudfinnsson, G. P. Bulanova, GP Bulanova, J. D. Blundy, JM Brenan, K Hirose, K Hirose, K Hirose, L. Gobbo, L. S. Armstrong, LN Kogarko, M Arima, M Coltorti, M. J. Walter, MJ Walter, MJ Walter, O. T. Lord, OG Safonov, PC Hayman, R Dasgupta, R Kessel, R Tappert, RE Harmer, S. Keshav, S. M. Clark, SE Haggerty, T Irifune, T Stachel, T Stachel, T Stachel, WF McDonough   +43 more
core   +2 more sources

Velocity structure of the mantle and abyssal fluids of Southeast Asia

Геофизический журнал, 2012
The real work is devoted to consideration of velocity structure of mantle under SouthEast Asia with the purpose of possible selection of velocity mantle columns, communication of them with petroleumgas pools.
L. N. Zayets, Ding True Kao, T. A. Tsvetkova   +2 more
doaj   +1 more source

The transition zone as a host for recycled volatiles: Evidence from nitrogen and carbon isotopes in ultra-deep diamonds from Monastery and Jagersfontein (South Africa) [PDF]

, 2017
Sublithospheric (ultra-deep) diamonds provide a unique window into the deepest parts of Earth's mantle, which otherwise remain inaccessible. Here, we report the first combined C- and N-isotopic data for diamonds from the Monastery and Jagersfontein ...
Gurney, J.J., Harris, J.W., Le Pioufle, A., Palot, M., Pearson, D.G., Stachel, T., Stern, R.A.   +6 more
core   +1 more source

Mantle Structure and Processes in Transition Zone of the Baikal Rift Zone

Izvestiya, Physics of the Solid Earth, 2022
Abstract The velocity structure of the mantle under the Baikal Rift Zone (BRZ) is investigated with the P‑wave receiver functions (PRFs) for a group of 10 seismograph stations. The BRZ presents one of the world’s most active continental rift zones.
L. P. Vinnik, S. I. Oreshin, L. I. Makeyeva, V. V. Mordvinova, L. R. Tsydypova   +4 more
openaire   +1 more source

Seismic evidence for a thinner mantle transition zone beneath the South Pacific Superswell

Geophysical Research Letters, 2000
Broadband seismograms recorded by the seismic stations deployed on oceanic islands in the South Pacific for two deep earthquakes in 1998 are used to investigate the mantle transition zone structure beneath the South Pacific, where a large‐scale hot plume
Fenglin Niu, Hiroshi Inoue, Daisuke Suetsugu, Kenji Kanjo   +3 more
doaj   +1 more source