Results 21 to 30 of about 462 (44)

Early Cretaceous Metasomatized Lithospheric Mantle beneath the Central Jiangnan Orogen in South China: Geochemical and Sr‐Nd Isotope Evidence from the Tuanshanbei Dolerite

Acta Geologica Sinica - English Edition, 2023
It is well established that Cretaceous magmatism in the South China Block (SCB) is related to the Paleo‐Pacific subduction. However, the starting time and the associated deep crust‐mantle processes are still debatable.
Cheng Wang, Hantao Wei, Qingquan Liu, Zhao Yang   +3 more
semanticscholar   +1 more source

The first results of isotopic (U-Pb, ID-TIMS) dating of individual zircon grains from dolerite dikes of the Eastern zone of the Urals

Lithosphere, 2020
Research subject. The article presents the results of dating two dolerite dikes differing in geochemical features from a section along the Iset river in the area of Smolinskoe settlement (the Eastern zone of the Middle Urals). Materials and methods.
V. Smirnov, K. Ivanov, T. Bayanova
semanticscholar   +1 more source

Distinguishing dolerite dike populations in post-grampian Connemara

Irish Journal of Earth Sciences, 2022
:The discovery of a dolerite dike exposed near Ross, Ballynakill Harbour, in north-western Connemara has re-opened investigation into two contrasting dolerite dike populations in Connemara, of respective mid-Paleozoic and Paleocene age.
P. Mohr, J. Hunt, Helen Riekstins, P. Kennan   +3 more
semanticscholar   +1 more source

Picritic dolerite dikes of the Naryn River: age, composition and position in the geological history of the Southeastern Tuva (Central Asian Orogenic Belt)

Doklady Rossijskoj akademii nauk. Nauki o Zemle
New evidence of the Early Silurian sublithospheric magmatic activity in the eastern part of the Altai-Sayan orogen has been obtained, which occurred between large-scale mantle magmatic episodes of the Middle–Late Ordovician and Devonian.
V. Yarmolyuk, A. Kozlovsky, U. A. Moroz, A. V. Nikiforov   +3 more
semanticscholar   +1 more source

Age, composition and paleomagnetism of dolerite-gabbro dolerite intrusions of the Anabar massif western slope: on the issue of the Vendian magmatism isolation in the region

Доклады РОССИЙСКОЙ АКАДЕМИИ НАУК. Науки о Земле
According to the Anabar massif western slope geological survey in the Kotuy River middle reaches, the Kotuy intrusive complex was identified. It represented by dolerite-gabbrodolerite sills and dikes of Vendian age (556 ± 28 Ma).
A. Pasenko, S. V. Malyshev, A. Pazukhina, A. D. Savel’ev, G. V. Lipenkov, K. R. Chemberlain   +5 more
semanticscholar   +1 more source

Geochemical Criteria for the Classification of Dolerite Dikes in the Central Part of the Baikal Basement Inlier of the Siberian Craton

Geochemistry International, 2023
T. V. Donskaya, D. Gladkochub, A. Mazukabzov, E. Demonterova, U. S. Efremova   +4 more
semanticscholar   +1 more source

Late Cambrian calc-alkaline magmatism during transition from subduction to accretion: Insights from geochemistry of lamprophyre, dolerite and gabbro dikes in the Dzhida terrain, Central Asian orogenic belt

, 2021
V. Belyaev, M. Gornova, I. Gordienko, A. Karimov, A. Medvedev, A. Ivanov, S. Dril, D. Grigoriev, O. Belozerova   +8 more
semanticscholar   +1 more source

Geochemistry of Paleozoic Dolerite Dikes in the Northeastern Kola Peninsula and Their Relations to Flood-Basalt and Alkaline Magmatism

Geochemistry International, 2020
E. N. Terekhov, T. Bayanova, A. Baluev, N. Kuznetsov, T. F. Shcherbakova, P. Serov   +5 more
semanticscholar   +1 more source

Age, Composition, and Paleomagnetism of Dolerite–Gabbro Dolerite Intrusions of the Western Slope of the Anabar Massif: The Issue of Vendian Magmatism in the Region

Doklady earth sciences, 2023
A. Pasenko, S. Malyshev, A. Pazukhina, A. D. Savelev, G. V. Lipenkov, K. R. Chamberlain   +5 more
semanticscholar   +1 more source

Paleoproterozoic Mafic Dikes in the Junction Zone between the Fenno-Karelian Craton and the Svecofennian Orogen of the Fennoscandinan Shield (Composition, Age, Origin)

Geochemistry International, 2022
T. А. Myskova, B. Belyatsky, E. E. Sereda, P. A. Lvov, N. Rodionov, A. Antonov, N. Berezhnaya, O. Galankina   +7 more
semanticscholar   +1 more source