Results 71 to 80 of about 39,591 (263)

Variable Upper Mantle Geochemical Processes Constrained From Independent Component Analysis of the Fizh Massif, Northern Oman Ophiolite

Geochemistry, Geophysics, Geosystems
We statistically analyzed the whole‐rock compositions of peridotites in the Oman ophiolite using a multivariate statistical technique called independent component analysis (ICA) to better understand the processes within the ophiolitic mantle section that
Yuto Miki, Eiichi Takazawa, Kenta Ueki, Tatsu Kuwatani   +3 more
doaj   +1 more source

Assessing the Carbon Sequestration Potential of Ultramafic Rocks in the Kolaka Ophiolite Complex, Southheastern Sulawesi: A Petrographic, Geochemical, and Mineralogical Study

JGEET: Journal of Geoscience, Engineering, Environment and Technology
Climate change has prompted significant global interest in carbon sequestration technologies, particularly using geological formations. This study investigates the potential of ultramafic rocks from the Kolaka Ophiolite Complex in Southeast Sulawesi for ...
Syahrul, La Ode Dzakir, Riska, Rio Irhan Mais Cendra jaya, Masri   +4 more
doaj   +1 more source

Seismic Imaging Reveals Ongoing Modification of Craton Margins in Northeast Asia

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Cratonic margins are commonly modified, yet the processes responsible remain debated. The Korean Peninsula, situated between adjacent cratons, the Japan Trench, and a back‐arc system, provides a natural setting to investigate this problem. Using 4 years of dense seismic observations, we image upper‐mantle structure beneath the peninsula with P‐
Hwaju Lee, YoungHee Kim, Maximiliano J. Bezada, Hyunwoo Lee   +3 more
wiley   +1 more source

Mechanisms and Geochemical Models of Core Formation

, 2015
The formation of the Earth's core is a consequence of planetary accretion and processes in the Earth's interior. The mechanical process of planetary differentiation is likely to occur in large, if not global, magma oceans created by the collisions of ...
Abe, Agnor, Alexander, Asahara, Bagdassarov, Ballhaus, Cameron, Canup, Cerantola, Chambers, Corgne, Dahl, Deguen, Fischer, Frost, Halliday, Hartmann, Hevey, Holzapfel, Holzheid, Holzheid, Hustoft, Jacobson, Kendall, König, Landeau, Li, Li, Liebske, Mann, Mann, McDonough, Minarik, Morbidelli, Nimmo, Nimmo, O'Brien, O'Neill, Olson, Palme, Reese, Ricard, Righter, Rubie, Rubie, Rubie, Rubie, Rubie, Rubie, Rudge, Samuel, Shannon, Shannon, Shi, Siebert, Solomatov, Stevenson, Takafuji, Terasaki, Terasaki, Terasaki, Terasaki, Tonks, Tuff, Urey, von Bargen, Wade, Walsh, Walte, Walte, Wood, Wood, Wänke, Yoshino, Ćuk   +74 more
core   +1 more source

Interior Rifting Coupled With Peripheral Subduction in the Rodinia Supercontinent: New Insights From the Tarim Craton

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract After assembly, supercontinents are shaped by internal rifting and peripheral subduction. However, the geodynamic relationship between these two processes and their respective contributions to supercontinent breakup remain poorly understood.
Shipeng Liu, Rongfeng Ge, Teng Zhou, Yang Si, Yue Wang   +4 more
wiley   +1 more source

Geochemistry of Kauai shield-stage lavas: Implications for the chemical evolution of the Hawaiian plume [PDF]

, 2003
We measured He, Sr, Nd, Pb, and Os isotope ratios and major and trace element concentrations in stratigraphically and paleomagnetically controlled shield-stage lavas from Kauai, Hawaii. The range of 3He/4He ratios (17–28 RA) from Kauai is similar to that
Bogue, S. W., Farley, K. A., Lassiter, J. C., Mukhopadhyay, S.   +3 more
core   +1 more source

Palladium, platinum, and gold distribution in serpentinite seamounts in the Mariana and Izu-Bonin forearcs: evidence from Leg 125 fluids and serpentinites

, 1992
Palladium, platinum, and gold were analyzed for 20 interstitial water samples from Leg 125. No Pd or Pt was detected in fluids from serpentinite muds from Conical Seamount in the Mariana forearc, indicating that low-temperature seawater-peridotite ...
Hall, G. E. M., Parkinson, I. J., Pearce, J. A.   +2 more
core   +2 more sources

GEOCHEMISTRY AND PETROGRAPHY OF METAMORPHIC SOLE AMPHIBOLITES FROM THE SLATINA QUARRY, MT. ZRINSKA GORA, CROATIA

Rudarsko-geološko-naftni Zbornik
The investigated Mt. Zrinska Gora amphibolites are a part of the metamorphic sole of the Banovina ophiolite complex. Mineral composition and other petrographic characteristics of amphibolites and adjacent peridotite were investigated by polarised ...
Marija Putak Juriček, Vesnica Garašić
doaj   +1 more source

Estimasi Ukuran Bulir Mineral Magnetik pada Batuan Peridotit Berdasarkan Peluruhan Anhysteretic Remanent Magnetization (ARM)

Jurnal Fisika Flux, 2009
A decaying measurement of Anhysteretic Remanent Magnetization (ARM) has been undertaken to estimation the grain size of magnetic mineral which carries remanent on peridotite igneous rocks.
Rina Reida, Sudarningsih Sudarningsih, Totok Wianto   +2 more
doaj   +1 more source

Key New Evidence for the Hainan Mantle Plume Head: Ongoing Formation of a Large Igneous Province?

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The process‐based surface magmatic expression of mantle plumes is typically a large igneous province (LIP) induced by the mantle plume head, followed by subsequent age‐progressive volcanic tracks resulting from plate drifting above the plume tail.
F. Yang, X. L. Huang, L. Liu, Y. G. Xu, Y. Hua, P. L. He, L. Zhang, W. F. Zhang, Y. Yu, H. Y. Li   +9 more
wiley   +1 more source