Results 21 to 30 of about 4,759,109 (83)

ВОЗРАСТ И ГЕОДИНАМИЧЕСКИЕ ОБСТАНОВКИ ФОРМИРОВАНИЯ МИАСКИТ-ПЕГМАТИТОВ, КАРБОНАТИТОВ И Nb-Zr МИНЕРАЛИЗАЦИИ ИЛЬМЕНО-ВИШНЕВОГОРСКОГО ЩЕЛОЧНОГО КОМПЛЕКСА, ЮЖНЫЙ УРАЛ (U-Pb И Rb-Sr ИЗОТОПНЫЕ ДАННЫЕ) [PDF]

open access: yes, 2022
The Ilmeno-Vishnevogorsky miaskite-phenite-carbonatite complex (IVС), located in the Urals folded region, is a representative of "linear type" carbonatite complexes, with which Nb-Zr deposits are associated.
В. А. Булатов   +7 more
core   +1 more source

Terminal suturing of Gondwana along the southern margin of South China Craton : evidence from detrital zircon U-Pb ages and Hf isotopes in Cambrian and Ordovician strata, Hainan Island [PDF]

open access: yes, 2014
This work was supported by the National Natural Science Foundation of China (grants 41472086 and 41272120), “111” Project (B08030), the fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) (CUG2012019240 and ...
Zhong, Z.   +4 more
core   +1 more source

Lithospheric origin of Oligocene-Miocene magmatism in central Chile: U-Pb ages and Sr-Pb-Hf isotope composition of minerals [PDF]

open access: yes, 2007
Establishing the petrogenesis of volcanic and plutonic rocks is a key issue in unraveling the evolution of distinct subduction-related tectonic phases occurring along the South American margin.
Schärer, U.   +10 more
core   +1 more source

(Table S1) Pb/U zircon ages of ODP Hole 118-735B

open access: yes, 2009
(Table S1) Pb/U zircon ages of ODP Hole 118 ...
John, Barbara E   +11 more
core   +1 more source

Uranium-Lead dating of hominid fossil sites in South Africa [PDF]

open access: yes, 2005
Discoveries of hominid, or apeman, fossils in the twentieth century have brought human evolution into the scientific spotlight. It is important that ages are assigned to such hominids so that their place in human evolution can be established.
Walker, Joanne
core  

ГЕОХРОНОЛОГИЧЕСКИЕ ИССЛЕДОВАНИЯ ЗАПАДНО-СИБИРСКОГО НЕФТЕГАЗОНОСНОГО МЕГАБАССЕЙНА; ИТОГИ 50 ЛЕТ ИЗУЧЕНИЯ

open access: yesЛитосфера, 2019
Дан обзор состояния геохронологических исследований Западной Сибири. В 50-летней истории изучения геохронологии фундамента Западно-Сибирского мегабассейна намечается два этапа, причем последний из них - этап изучения с использованием современных методов ...

doaj  

Zircons and zircon’s geochronology of gabbro Nurali massif (the Southern Urals)

open access: yesЛитосфера, 2018
Object. In the article presents the the results of mineralogy, geochemistry and isotope-chronological investigation of zircons from gabbro Nurali massif. Materials and methods . Amphibole gabbro is the fine-grained and massive texture rock, which cosists
Artur A. Krasnobaev, Petr M. Valizer
doaj   +1 more source

U-Pb Dating of Silicic Volcanic Rocks of the Eastern Coromandel Peninsula [PDF]

open access: yes, 2012
The eastern Coromandel Volcanic Zone (CVZ) is an area of predominantly andesite-dacite-rhyolite volcanism which was erupted and subsequently hydrothermally altered in parts during the Late Miocene to Early Pleistocene.
Vincent, Kirsty Anne
core  

НОВЫЕ Rb-Sr И U-Pb ДАННЫЕ О ВОЗРАСТЕ ГРАНИТОИДОВ СЯДАТАЯХИНСКОЙ ИНТРУЗИИ (ПОЛЯРНЫЙ УРАЛ)

open access: yesЛитосфера, 2019
Приводятся новые данные о возрасте гранитоидов Сядатаяхинской интрузии, расположенной в палеоконтинентальном секторе Полярного Урала. Rb-Sr возраст по породе в целом составляет 506±4,5 млн.

doaj  

Tab.3: U-Pb isotopic data for baddeleyite from mafic dykes in Canada and Greenland

open access: yes, 2006
Tab.3: U-Pb isotopic data for baddeleyite from mafic dykes in Canada and ...
Denyszyn, Steven W   +5 more
core   +1 more source

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