Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Alexey G. Petrunin"'
Publikováno v:
Tectonics
We present a new model of the stress state and present-day tectonics of the Red Sea Rift (RSR) based on an instantaneous geodynamic mantle flow model. The initial density and viscosity variations in the mantle are derived from a joint inversion of gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e14be55816f51383d5a916f3f27b9bb2
Autor:
Alexey G. Petrunin, Bo Chen, Mikhail K. Kaban, S. El Khrepy, Nassir Al-Arifi, Magdala Tesauro
Publikováno v:
Geophysical Research Letters
Geophysical Research Letters, 45(18), 9523. Wiley Online Library
Geophysical Research Letters, 45(18), 9523. Wiley Online Library
In the present study we analyzed the influence of density heterogeneity in the sedimentary cover on estimates of the effective elastic thickness (EET) of the lithosphere based on a cross‐spectral analysis of gravity and topography data. The fan wav
Publikováno v:
Geophysical Research Letters
Abstracts
AGU 2017 Fall Meeting#
Abstracts
AGU 2017 Fall Meeting#
The Arabia-Eurasia continental collision zone is one of the largest and most active on the Earth. It has been discussed already long ago that the convergence of these plates implies subduction of the lithosphere. However, scenarios of this process ar
Publikováno v:
Geochemistry Geophysics Geosystems (G3)
We create a 3-D density, temperature, and composition model of the Antarctic lithosphere using an integrative approach combining gravity, topography, and tomography data with mineral physics constraints and seismic data on crustal structures. The lat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f55c11be4816cd8507b1966f93d62ac
Wiley Online Library
Wiley Online Library
Publikováno v:
Solid Earth, Vol 7, Iss 3, Pp 965-978 (2016)
Solid Earth
Solid Earth
The Gulf of Aqaba is an elongated basin (~180 x 20 km) with depths reaching 1850 m. It represents the southern segment of the Dead Sea Transform (DST), which is one of the largest transform fault zones in the world. The opening of Gulf of Aqaba is th
Publikováno v:
Tectonophysics
To this day, little is known about thermal and rheological properties of the Antarctic lithosphere. We derive the effective elastic thickness T e as a proxy for these parameters by using ice thickness, bedrock topography and a combination of new sate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0a88cd8dcccf3f8c81732000ee6dd4a
http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1016/j.tecto.2017.06.012
http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1016/j.tecto.2017.06.012
Publikováno v:
Geophysical Research Letters. 42:44-52
In the lowermost mantle, seismic velocity variations beneath Pacific margins have been related to the perovskite to postperovskite (pPv) phase transition. We investigate the influence of this phase transformation on the geoid using 3-D spherical mant
Publikováno v:
Surveys in Geophysics
A joint effect of weak zones, dividing lithospheric plates, and lateral viscosity variations (LVV) in the whole mantle on the observed geoid is investigated by a new numerical approach. This technique is based on the substantially revised method intr
Publikováno v:
Geochemistry, Geophysics, Geosystems. 14:3691-3702
[1] The observed geoid, dynamic topography, and surface plate velocities are controlled by various factors such as density and viscosity variations in the Earth's mantle and strength of the lithosphere. Previous studies have shown that the geoid sign
Autor:
Bernhard Steinberger, Maik Thomas, Jesse V. Johnson, Alexey G. Petrunin, Irina Rogozhina, Mikhail K. Kaban, Florian Rickers, Ivan Koulakov, Reinhard Calov, Alan P. M. Vaughan
Publikováno v:
Nature Geoscience
Ice-penetrating radar and ice core drilling4 have shown that large parts of the north-central Greenland ice sheet are melting from below. It has been argued that basal ice melt is due to the anomalously high geothermal flux, that has also influenced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::083f5a0a13426eb206f5714cea650c72
https://gfzpublic.gfz-potsdam.de/pubman/item/item_1487978
https://gfzpublic.gfz-potsdam.de/pubman/item/item_1487978