Results 41 to 50 of about 365,115 (188)

Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example form the Isle of Rum, NW Scotland [PDF]

, 2009
Sr and Nd isotope ratios, together with lithophile trace elements, have been measured in a representative set of igneous rocks and Lewisian gneisses from the Isle of Rum in order to unravel the petrogenesis of the felsic rocks that erupted in the early ...
C. HENRY EMELEUS, ROMAIN MEYER, Emeleus, H., Nicoll, G.R., JAN HERTOGEN, Troll, Valentin R.,, Meyer, R., Ellam, R., Emeleus, C.H., Hertogen, J., Troll, V.R., Ellam, R.M., GRAEME R. NICOLL, VALENTIN R. TROLL, ROBERT M. ELLAM   +14 more
core   +1 more source

Caribbean Plate margin evolution: constraints and current problems

Geologica Acta, 2006
Oceanic crust was generated at multiple spreading centres during the Jurassic and Early Cretaceous, forming a “proto-Caribbean” oceanic domain. During the Cretaceous, part of that crustal domain thickened into an oceanic plateau, of petrologic Mid-Ocean ...
G. GIUNTA, L. BECCALUVA, F. SIENA
doaj   +1 more source

Joint Geodynamic‐Geophysical Inversion Suggests Passive Subduction and Accretion of the Ontong Java Plateau

Geophysical Research Letters, 2022
In this study, we for the first time applied a joint geodynamic‐geophysical inversion approach to oceanic plateau subduction models, and compared the subduction style and corresponding topography and Bouguer gravity of two representative subduction ...
Hao Dong, Liming Dai, Lijun Liu, Xiaodian Jiang, Sanzhong Li, Wei Gong, Liangliang Wang, Di Wang, Zhong‐Hai Li, Shengyao Yu   +9 more
doaj   +1 more source

Pre-subduction of the Caroline Plateau intensifies lithospheric hydration in the southern Mariana Trench

Communications Earth & Environment
The subduction of oceanic plateaus significantly reshapes subduction systems, yet its impact on lithospheric hydration prior to subduction is not well understood. Here we investigate these processes as the Caroline Plateau approaches the southern Mariana
Enyuan He, Xuelin Qiu, Yuhan Li, Ingo Grevemeyer, Min Xu, Minghui Zhao, Yuan Wang, Chuanxu Chen, Jiangyang Zhang   +8 more
doaj   +1 more source

Band-by-band spectral radiative kernels based on the ERA5 reanalysis

Scientific Data
Radiative kernel is a widely adopted method for diagnosing radiation variability and climate feedback. However, most of the existing radiative kernels are broadband flux kernels and lack the spectral information.
Han Huang, Yi Huang, Qiang Wei, Yongyun Hu   +3 more
doaj   +1 more source

Quantify Oceanic Moisture Contribution to the Tibetan Plateau

, 2022
Abstract. Evaporation from global oceans is an important moisture source of glaciers and headwaters of major Asia rivers in the Tibetan Plateau (TP). Although recent accelerated global hydrological cycle, altered sea-land thermal contrast, and amplified warming rate over the TP are known to have profound effects on the regional water balance, the ...
Ying Li, Chenghao Wang, Ru Haung, Denghua Yan, Hui Peng, Shangbin Xiao   +5 more
openaire   +1 more source

40Ar/39Ar dating of Quaternary lavas in northwest Iran: constraints on the landscape evolution and incision rates of the Turkish-Iranian plateau [PDF]

, 2011
We report five new ⁴⁰Ar/³⁹Ar ages for basaltic lavas in the Maku region of northwest Iran, between ca. 1.87 and 0.40 Ma, which help constrain the tectonic and landscape evolution of this part of the Turkish ...
Allen, M.B., Kheirkhah, M., Emami, M.H., Saville, C., Barfod, D., Mark, D.F., Monireh Kheirkhah, Christopher Saville, Dan Barfod, Mark B. Allen, Darren F. Mark, Mohammad H. Emami   +11 more
core   +1 more source

Regional‐to‐Global Tectonic and Trench‐Morphology Effects of Oceanic Plateau Subduction

Geophysical Research Letters
Regional geodynamic modeling has shown that oceanic plateau subduction can modify the slab behavior. However, few studies have explored these interactions beyond 100 Myr in 3‐D spherical models.
Yang Liu, Nicolas Coltice, Laetitia Le Pourhiet, Ziyin Wu   +3 more
doaj   +1 more source

Variety and origin of magmas on Shatsky Rise, northwest Pacific Ocean

Geochemistry, Geophysics, Geosystems, 2012
Shatsky Rise consists of thick (∼30 km maximum) basaltic crust with various geochemical compositions. Geochemistry data indicate that four magma types exist on the plateau; namely normal, low‐Ti, high‐Nb, and U1349 types.
Takashi Sano, Kenji Shimizu, Akira Ishikawa, Ryoko Senda, Qing Chang, Jun‐Ichi Kimura, Mike Widdowson, William W. Sager   +7 more
doaj   +1 more source

Structural architecture of oceanic plateau subduction offshore Eastern Java and the potential implications for geohazards [PDF]

, 2010
The region offshore Eastern Java represents one of the few places where the early stage of oceanic plateau subduction is occurring. We study the little investigated Roo Rise oceanic plateau on the Indian plate, subducting beneath Eurasia. The presence of
Shulgin, Alexey, Flueh, E. R., Planert, Lars, Mueller, C., C. Mueller, L. Planert, Kopp, Heidrun, E. R. Flueh, E. Lueschen, Lueschen, E., Y. Djajadihardja, H. Kopp, Djajadihardja, Y., A. Shulgin   +13 more
core   +1 more source