Results 21 to 30 of about 460 (45)

Late Magmatism of the Galway Granite Batholith: II. Composite Dolerite-Rhyolite Dikes

Irish Journal of Earth Sciences, 2022
:Composite dolerite-rhyolite dikes traverse the Galway Granite batholith and its adjacent envelope. The dikes pertain to the Teach Dóite suite and were previously considered to be of Carboniferous age.
P. Mohr
semanticscholar   +1 more source

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   +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   +3 more
semanticscholar   +1 more source

The First Discovery of Archean Dolerite Dikes in the Western Part of the Aldan Shield

Петрология
In the western part of the Aldan terrane, in the middle reaches of the Tokko river, dolerite dikes have been studied. These dolerite dikes form a swarm of submeridional trend about 1 km wide.
K. G. Erofeeva   +2 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   +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   +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   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy