Results 71 to 80 of about 2,903 (189)

Mesoscale wake clouds in Skylab pictures. [PDF]

The recognition of cloud patterns formed in the wake of orographic obstacles was investigated using pictures from Skylab, for the purpose of estimating atmospheric motions.
Fujita, T. T., Tecson, J. J.
core   +1 more source

Insights into Li and Li isotope cycling and sub-arc metasomatism from veined mantle xenoliths, Kamchatka [PDF]

, 2009
Harzburgitic xenoliths cut by pyroxenite veins from Avachinsky volcano, Kamchatka, are derived from the sub-arc mantle and record element transfer from the slab to the arc. Olivine and orthopyroxene in the harzburgites have Li isotopic compositions (δ7Li
Halama, Ralf, McDonough, William F., Rudnick, Roberta L., Savov, Ivan P.   +3 more
core   +1 more source

Architecture and evolution of shelf‐margin clinoforms developed in a back‐arc tectonic setting: Insights from quantitative analysis on the south‐west shelf margin of the Ulleung Basin

Basin Research, Volume 36, Issue 2, March–April 2024.
Stratigraphic chart for the Ulleung Basin shows seismic units, eustatic changes, calculated sediment supply and measured shelf‐margin aggradation, with major tectonic events. Brief depositional models of three different seismic units imply the transitional changes from the opening to the closing in the ‘old’ back‐arc Ulleung Basin. Abstract Geophysical
Gihun Song, Hyun Suk Lee, Seungcheol Lee
wiley   +1 more source

Study of the Faults Network of Kunashir Island (Kuril Islands) in Order to Reconstruct the Features of its Tectonic Evolution

Russian Journal of Earth Sciences
The paper is devoted to the study of the faults on Kunashir Island, focusing on their classification, morphology, kinematics, timing, and causes of formation, which are key to understanding the tectonic evolution of the area. The magma-supporting role of
Krikun Nikita Sergeevich, Abdrahmanov Il'nur, Talovina Irina   +2 more
doaj   +1 more source

Present-day plate motions [PDF]

A data set comprising 110 spreading rates, 78 transform fault azimuths and 142 earthquake slip vectors was inverted to yield a new instantaneous plate motion model, designated RM2.
Jordan, T. H., Minster, J. B.
core   +1 more source

Written records of historical tsunamis in the northeastern South China Sea - Challenges associated with developing a new integrated database [PDF]

, 2010
Comprehensive analysis of 15 previously published regional databases incorporating more than 100 sources leads to a newly revised historical tsunami database for the northeastern (NE) region of the South China Sea (SCS) including Taiwan.
Aitchison, JC, DomineyHowes, D, Lau, AYA, Switzer, AD, Zong, Y   +4 more
core   +2 more sources

GRACE and GRACE Follow‐On Gravity Observations of Intermediate‐Depth Earthquakes Contrasted With Those of Shallow Events

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 2, February 2024.
Abstract Earthquakes involve mass redistribution within the solid Earth and the ocean, and as a result, perturb the Earth's gravitational field. For most of the shallow (<60 km) earthquakes with Mw > 8.0, the GRACE satellite gravity measurements suggest considerable volumetric disturbance of rocks.
Shin‐Chan Han, Jeanne Sauber, Taco Broerse, Fred Pollitz, Emile Okal, Taehwan Jeon, Ki‐Weon Seo, Richard Stanaway   +7 more
wiley   +1 more source

Ridge subduction sparked reorganization of the Pacific plate-mantle system 60-50 million years ago [PDF]

, 2015
A reorganization centered on the Pacific plate occurred ~53–47 million years ago. A “top-down” plate tectonic mechanism, complete subduction of the Izanagi plate, as opposed to a “bottom-up” mantle flow mechanism, has been proposed as the main driver ...
Dan J. Bower, Grand S. P., Joanne Whittaker, Maria Seton, Michael Gurnis, Nakajima T., Nicolas Flament, R. Dietmar Müller, Taira A.   +8 more
core   +3 more sources

Shape of the ocean surface and implications for the Earth's interior: GEOS-3 results [PDF]

A new set of 1 deg x 1 deg mean free air anomalies was used to construct a gravimetric geoid by Stokes' formula for the Indian Ocean. Utilizing such 1 deg x 1 deg geoid comparisons were made with GEOS-3 radar altimeter estimates of geoid height.
Bodine, J. H., Chapman, M. E., Kahle, H., Talwani, M.   +3 more
core   +1 more source

Some features of geological structure of the Shikotan Island (Lesser Kuril Arc)—A view from 'Space'

AIMS Geosciences
In this paper, for the first time, we used Google Earth, an easily accessible method for obtaining geological information to study Shikotan Island (Lesser Kuril Arc).
Evgeny P Terekhov, Anatoly V Mozherovsky
doaj   +1 more source