Results 31 to 40 of about 2,429,367 (395)

Seismic Structure Beneath the Molucca Sea Collision Zone from Travel Time Tomography Based on Local and Regional BMKG Networks

Applied Sciences, 2022
The Molucca Sea Plate, and Sangihe and Halmahera plates have a complex tectonic setting and interact to create the Molucca Sea Collision Zone. We re-picked 1647 events recorded from 2010 to 2017 from 32 of The Agency for Meteorology, Climatology, and ...
Gazali Rachman, Bagus Jaya Santosa, Andri Dian Nugraha, Supriyanto Rohadi, Shindy Rosalia, Zulfakriza Zulfakriza, Sungkono Sungkono, David P. Sahara, Faiz Muttaqy, Pepen Supendi, Mohamad Ramdhan, Ardianto Ardianto, Haunan Afif   +12 more
doaj   +1 more source

Geochemistry and origin of plagiogranites from the Eldivan Ophiolite, Çankırı (Central Anatolia, Turkey)

Geologica Carpathica, 2014
The Eldivan Ophiolite, exposed around Ankara and Çankırı cities, is located at the central part of the Izmir-Ankara-Erzincan Suture Zone (IAESZ). It represents fragments of the Neotethyan Oceanic Lithosphere emplaced towards the south over the Gondwanian
Üner Tijen, Çakir Üner, Özdemir Yavuz, Arat Irem   +3 more
doaj   +1 more source

Subvolcanic petrology of the Pico dos Três Estados region (SE Brazil): Implications for Alkaline Magmatic Evolution [PDF]

Brazilian Journal of Geology
This paper presents a geological study of the subvolcanic bodies present in the Pico dos Três Estados (São Paulo (SP), Rio de Janeiro (RJ), and Minas Gerais (MG)) and its surroundings at the Passa Quatro Alkaline Complex.
Graciano Carlos de Freitas, Artur Corval, Júlio Cesar Lopes da Silva, Helena Saraiva Koenow Pinheiro, Sérgio de Castro Valente   +4 more
doaj   +1 more source

Isolated Crustal Partial Melting in the Southern Tibetan Plateau From H‐κ‐c Method

Geophysical Research Letters, 2023
The crustal thickness and average Vp/Vs ratio are basic parameters to understand the current state and the tectonic processes in the Tibetan Plateau (TP).
Junyi Gong, Jiangtao Li, Mengkui Li
doaj   +1 more source

Partial melting in the deepest mantle [PDF]

Geophysical Research Letters, 2002
We have compared the travel times of direct (P, S) and core‐reflected (PcP, ScS) phases recorded in southern Africa from earthquakes occurring in the Scotia Arc region. The low‐velocity region beneath the south Atlantic is explored by calculating ScS‐S and PcP‐P travel‐time residuals to determine the correlation and magnitude of Vs and Vp reductions in
N. A. Simmons, S. P. Grand
openaire   +1 more source

Defect mediated melting and the breaking of quantum double symmetries [PDF]

, 2006
In this paper, we apply the method of breaking quantum double symmetries to some cases of defect mediated melting. The formalism allows for a systematic classification of possible defect condensates and the subsequent confinement and/or liberation of ...
C. J. M. Mathy, D. R. Nelson, F. A. Bais, F. A. Bais, J. Serre, L. D. Landau, M. de Wild Propitius, P. M. Chaikin   +7 more
core   +3 more sources

Evidence of Volatile‐Induced Melting in the Northeast Asian Upper Mantle

Journal of Geophysical Research: Solid Earth, 2021
A seismic low velocity layer (LVL) above the mantle transition zone (MTZ), often thought to be caused by volatile‐induced melting, can significantly modulate planetary volatile cycles.
Yizhuo Sun, S. Hier‐Majumder, Benoit Tauzin, Michael J. Walter, M. Ballmer, Yigang Xu, Seongryong Kim   +6 more
semanticscholar   +1 more source

Spinel Harzburgite-Derived Silicate Melts Forming Sulfide-Bearing Orthopyroxenite in the Lithosphere. Part 1: Partition Coefficients and Volatile Evolution Accompanying Fluid- and Redox-Induced Sulfide Formation

Frontiers in Earth Science, 2022
We report abundances of major trace and volatile elements in an orthopyroxenite vein cutting a sub-arc, mantle-derived, spinel harzburgite xenolith from Kamchatka.
A. Bénard, C. Le Losq, O. Müntener, M. Robyr, O. Nebel, R. J. Arculus, D. A. Ionov   +6 more
doaj   +1 more source

Transition from Icosahedral to Decahedral Structure in a Coexisting Solid-Liquid Nickel Cluster

, 2005
We have used molecular dynamics simulations to construct a microcanonical caloric curve for a 1415-atom Ni icosahedron. Prior to melting the Ni cluster exhibits static solid-liquid phase coexistence.
D. Schebarchov, O. H. Nielsen, S. C. Hendy   +2 more
core   +1 more source

Boninite and Harzburgite from Leg 125 (Bonin-Mariana Forearc): A Case Study of Magma Genesis during the Initial Stages of Subduction [PDF]

, 1992
Holes drilled into the volcanic and ultrabasic basement of the Izu-Ogasawara and Mariana forearc terranes during Leg 125 provide data on some of the earliest lithosphere created after the start of Eocene subduction in the Western Pacific.
Arculus, Richard J., Ishii, Teruaki, Murton, Bramley J., Parkinson, Ian J., Pearce, Julian A., Peate, David W., van der Laan, Sieger R.   +6 more
core   +1 more source