Results 101 to 110 of about 776,982 (368)

Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics [PDF]

, 2006
Anorogenic intra-plate magmatism was widespread in Europe from early Tertiary to Recent times, extending west to east from Spain to Bulgaria, and south to north from Sicily to northern Germany. Magmatism is spatially and temporally associated with Alpine-
Downes, Hilary, Wilson, M.
core   +1 more source

Lava Worlds: From Early Earth to Exoplanets [PDF]

, 2020
The magma ocean concept was first conceived to explain the geology of the Moon, but hemispherical or global oceans of silicate melt could be a widespread "lava world" phase of rocky planet accretion, and could persist on planets on short-period orbits around other stars. The formation and crystallization of magma oceans could be a defining stage in the
arxiv   +1 more source

Two-sided asymmetric subduction; implications for tectonomagmatic and metallogenic evolution of the Lut Block, Eastern Iran [PDF]

, 2011
West directed subduction zones show common characteristics, such as low structural elevation, deep trench, steep slab and a conjugate back-arc basin that are opposite to those of the east directed subduction zones.
Arjmandzadeh, R., Homam, S. M., Karimpour, M. H., Mazaheri, S. A., Medina, J. M., Santos, J. F.   +5 more
core   +2 more sources

Early Cenozoic denudation of central west Britain in response to transient and permanent uplift above a mantle plume [PDF]

, 2018
Upwelling mantle plumes beneath continental crust are predicted to produce difficult to quantify, modest uplift and denudation. The contribution of permanent and transient components to the uplift is also difficult to distinguish.
Al-Kindi, Arrowsmith, Bamford, Barnett-Moore, Beucher, Bluck, Blundell, Bott, Bott, Bott, Braun, Braun, Braun, Brown, Brown, Brown, Brown, Brown, C. Persano, Chadwick, Cogné, Cogné, Cope, Cox, Croudace, Davis, Dobson, Downing, F. M. Stuart, Farley, Flowers, Gallagher, Ganerød, Gautheron, Gautheron, Gautheron, Gautheron, Gleadow, Green, Green, Green, Green, Green, Guenthner, Hancock, Hancock, Haq, Hartley, Hillis, Holford, Holliday, Jackson, Japsen, Jones, Jones, K. Łuszczak, Ketcham, Lewis, Lister, Liu, Lundin, Mackay, Maclennan, McDowell, Meesters, Montgomery, Moucha, Mudge, Murray, Nadin, Persano, Persano, Petersen, Rowley, Rudge, Rundle, Saunders, Shaw Champion, Shennan, Simms, Simms, Stephenson, Stoker, Stuart, Tiley, Tiley, Tomlinson, Vernon, Ware, Westaway, Westaway, Westaway, White, White, White, Williamson, Ziegler, Ziegler, Łuszczak   +98 more
core   +1 more source

Identification of the featured-element in fine road dust of cities with coal contamination by geochemical investigation and isotopic monitoring

Environment International, 2021
The exploitation of coal releases large amounts of contaminants into the environment. However, the featured pollutants of coal utilization as well as the scope and degree of their impact remain to be revealed.
Yuan Liu, Guijian Liu, Balal Yousaf, Chuncai Zhou, Xiaofei Shen   +4 more
doaj  

Geochemical Consequences of Melt Percolation: The Upper Mantle as a Chromatographic Column

The Journal of geology, 1987
As magmas rise toward the surface, they traverse regions of the mantle and crust with which they are not in equilibrium; to the extent that time and the intimacy of their physical contact permit, the melts and country rocks will interact chemically.
O. Navon, E. Stolper
semanticscholar   +1 more source

Extreme 18O-enrichment in majorite constrains a crustal origin of transition zone diamonds [PDF]

, 2015
The fate of subducted oceanic lithosphere and its role in the planet-scale geochemical cycle is a key problem in solid Earth studies. Asthenospheric and transition zone minerals included in diamond have been interpreted as representing subducted oceanic ...
Harris, J. W., Ickert, R. B., Stachel, T., Stern, R. A.   +3 more
core   +1 more source

Geochronology and geochemistry of the intrusive rocks in Yucun Au deposit, Jiangnan Transition Belt, Eastern China: Constraints on their petrogenesis, geodynamical setting and mineralization

Solid Earth Sciences, 2020
A large number of Au polymetallic deposits have been mined in the Jiangnan Transition Belt (JTB), Eastern China. However, the formation and genesis of these Au polymetallic deposits remain unclear.
Shanshan Chen, Xiaoyong Yang, Zhuang Zhao, Huasheng Qi, Lei Shi   +4 more
doaj  

Arctic Tectonics and Volcanism: a multi-scale, multi-disciplinary educational approach [PDF]

Geoscience Communication
Geologically, the Arctic is one of the least-explored regions of Earth. Obtaining data in the high Arctic is logistically, economically, and environmentally expensive, but the township of Longyearbyen (population of 2617 as of 2024) at 78° N represents a
K. Senger, K. Senger, G. Shephard, G. Shephard, F. Ammerlaan, F. Ammerlaan, O. Anfinson, P. Audet, B. Coakley, V. Ershova, J. I. Faleide, S.-A. Grundvåg, S.-A. Grundvåg, R. K. Horota, K. Iyer, J. Janocha, J. Janocha, M. Jones, M. Jones, A. Minakov, M. Odlum, A. Sartell, A. Sartell, A. Schaeffer, D. Stockli, M. A. Vander Kloet, M. A. Vander Kloet, C. Gaina   +27 more
doaj   +1 more source

The downward directed grounds hypothesis and very large cardinals [PDF]

arXiv, 2017
A transitive model $M$ of ZFC is called a ground if the universe $V$ is a set forcing extension of $M$. We show that the grounds of $V$ are downward set-directed. Consequently, we establish some fundamental theorems on the forcing method and the set-theoretic geology. For instance, (1) the mantle, the intersection of all grounds, must be a model of ZFC.
arxiv