Browsing Геология России by Title
- DSpace Home
- →
- Геология России
- →
- Browsing Геология России by Title
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing Геология России by Title
Now showing items 16360-16379 of 39124
-
(EDP Sciences, 2016)The paper material is devoted to the research of crystallomorphology, accessory ilmenite expansion, characteristic features of its chemical composition, paragenetic association and conditions for mineral formation in ...
-
(2006)Alpine-type dunite-harzburgite-lherzolite massifs have long attracted much attention of geologists as reference objects for geological and petrological models and as massifs hosting economic deposits of Cr, Ni, and asbestos. ...
-
(1987)The problem of the origin of bariopyrochlore and strontiopyrochlore in weathered carbonatite mantle must be solved by special methods, including systematic study of pyrochlore compositions in the supergene alteration zone ...
-
(2000)The EPR method was for the first time used for studying composition, form, and structural transformations of paramagnetic impurities in major generations of halite from the zones of basic-rock-evaporite interaction. The ...
-
(1989)The authors analyze a new Precambrian microbiota from the top of the Tyulmen beds that constitute the top of the Avzyan Formation of the Middle Ripean of the southern Urals. This microbiota is interesting for two reasons. ...
-
(Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет им. М. В. Ломоносова», 2018)Приводятся первые U-Pb изотопные данные о возрасте детритовых цирконов из метатерригенных пород румяничной свиты барминской серии, представляющей собой видимое основание докембрийского разреза Северного Тимана. U-Pb ...
-
(1997)U-Pb dating of zircons from the reference granitoid complexes showed that principal thrusts in the northern flank of the junction zone between the Olekma granite-greenstone and Aldan granulite-gneiss terranes of the Aldan ...
-
(2005)We have undertaken petrologic and SHRIMP U-Th-Pb isotopic studies on zircons from basaltic eucrites (Yamato [Y]-75011, Y-792510, Asuka [A]-881388, A-881467 and Padvarninkai) with different thermal and shock histories. ...
-
(PANGAEA, 2012-10-09)Reconstruction of the geologic history of the Yenisey Ridge, which developed as an accretionary collision orogen on the western margin of the Siberian craton is essential to understanding the evolution of mobile belts ...
-
(1999)The Palaeozoic Uralian orogen formed by accretion of island arcs and microcontinents along the eastern margin of the East European platform. In the middle Urals, a promontory of the East European platform, the Ufaley Complex ...
-
(2001)The bedrock of the Sodankylä schist area consists mainly of Paleoproterozoic volcanic and sedimentary rocks penetrated by mafic and felsic intrusives. This paper reports c. 200 conventional U-Pb analyses mainly on zircon. ...
-
(1998)Thirty-one detrital zircons from the mid–late Riphean Mayamkan Formation sandstone (Uy Group) of the Sette–Daban fold belt, southeast Siberia yielded SHRIMP 207Pb/206Pb ages ranging between 1500 and 1050 Ma. Other grains ...
-
(Федеральное государственное бюджетное учреждение науки Институт земной коры Сибирского отделения Российской академии наук, 2017)Оценена возможность использования изотопных отношений U-Th-Pb системы при анализе цирконов методом LA-ICP-MS путем мониторинга прецизионности, сходимости и правильности. Получены новые U-Pb изотопно-геохронологические ...
Now showing items 16360-16379 of 39124