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U-PB AGE OF GABBRONORITES OF THE ZHEMCHUZHNYI MASSIF: CONSEQUENCES OF THE PALEOPROTEROZOIC EVOLUTION OF THE BELOMORIAN MOBILE BELT

Kudryashov N.M.; Balaganskii V.V.; Apanasevich E.A.; Ryungenen G.I. (1999)

U-PB AGE OF GRANITOIDS IN THE JUNCTION ZONE BETWEEN THE OLEKMA GRANITE-GREENSTONE AND ALDAN GRANULITE-GNEISS TERRANES

Salnikova E.B.; Kotov A.B.; Belyatskii B.V.; Yakovleva S.Z.; Morozova I.M.; Berezhnaya N.G.; Zagornaya N.Yu. (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 ...

U-PB AGE OF ROCKS OF THE MT. GENERAL'SKAYA LAYERED INTRUSION, KOLA PENINSULA

Bayanova T.B.; Smolkin V.F.; Uvkovich N.V.; Kyungenen G.L. (1999)

U-PB AND 207PB-206PB AGES OF ZIRCONS FROM BASALTIC EUCRITES: IMPLICATIONS FOR EARLY BASALTIC VOLCANISM ON THE EUCRITE PARENT BODY

Misawa K.; Yamaguchi A.; Kaiden H. (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. ...

U-PB DATING OF THE VERKNIY UFALEY INTRUSION, MIDDLE URALS, RUSSIA: A MINIMUM AGE FOR SUBDUCTION AND AMPHIBOLITE FACIES OVERPRINT OF THE EAST EUROPEAN CONTINENTAL MARGIN

Hetzel R.; Romer R. (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 ...

U-PB DATINGS IN THE SODANKYLä SCHIST AREA, CENTRAL FINNISH LAPLAND

Räsänen J.; Huhma H. (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. ...

U-PB GCOCHRONOLOGY AND MAJOR -ELEMENT CHEMISTRY OF A DIORITE-PLAGIOGRAR.ITIC BCIHOLUH IN NORTHERN KARELIA

Bibikova E.V.; Slabunov A.I.; Kimozova T.I.; Makarov V.A.; Borisova E.Y.; Kavclich V.I. (1997)

U-PB GEOCHRONOLOGY OF RIPHEAN SANDSTONE AND GABBRO FROM SOUTHEAST SIBERIA AND ITS BEARING ON THE LAURENTIA-SIBERIA CONNECTION

Rainbird R.H.; Stern R.A.; Khudoley A.K.; Kropachev A.P.; Heaman L.M.; Sukhorukov V.I. (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 ...

U-PB MINERAL AGE DETERMINATIONS FROM ARCHEAN ROCKS IN EASTERN LAPLAND

Juopperi H.; Vaasjoki M. (2001)

The bedrock in eastern Lapland is divided into the Naruska, Ahmatunturi and Vintilänkaira-Kemihaara granitoid complexes and the supracrustal Tuntsa metasedimentary and Tulppio metavolcanic belts. Traditionally the bedrock ...

U-PB SINGLE-ZIRCON DATING UNDER CATHODOLUMINESCENCE CONTROL (CLC-METHOD): APPLICATION TO POLYMETAMORPHIC ORTHOGNEISSES

Poller U.; Liebetrau V.; Todt W. (1997)

The dating of polymetamorphic rocks with the U-Pb zircon method often results in discordant data. Thus a new technique combining cathodoluminescence imaging (CL) and thermal ion mass spectrometry (TIMS) measurements was ...

U-PB SYSTEMATICS OF PROTEROZOIC CARBONATE ROCKS: THE INZER FORMATION OF THE UPPER RIPHEAN STRATOTYPE (SOUTHERN URALS)

Ovchinnikova G.V.; Vasil'eva I.M.; Kuznetsov A.B.; Gorokhov I.M.; Gorokhovskii B.M.; Levskii L.K.; Semikhatov M.A. (1998)

U-Pb and Pb-Pb isotopic systems were studied in limestones of the Inzer Formation representing the middle part of the Karatau Group of the Urals, whose section is authorized as the Upper Riphean stratotype. Carbonate rock ...

U-PB ВОЗРАСТ ГРАНИТОИДОВ ЗОНЫ СОЧЛЕНЕНИЯ ОЛЕКМИНСКОЙ ГРАНИТ-ЗЕЛЕНОКАМЕННОЙ И АЛДАНСКОЙ ГРАНУЛИТО-ГНЕЙСОВОЙ ОБЛАСТЕЙ

Сальникова Е.Б.; Котов А.Б.; Беляцкий Б.В.; Яковлева С.З.; Морозова И.М.; Бережная Н.Г.; Загорная Н.Ю. (1997)

U-PB ГЕОХРОНОЛОГИЯ ГРАНИТОИДОВ ОКТЯБРЬСКОГО КОМПЛЕКСА МАМЫНСКОГО ТЕРРЕЙНА (ПРИАМУРЬЕ)

Сорокин А.А.; Кудряшов Н.М.; Ли Цзиньи (2004)

В статье приведены результаты изотопно-геохронологических (U-Pb метод по цирконам) и геохимических исследований гранитоидов ряда массивов Мамынского террейна, традиционно относимых к условно раннепалеозойскому октябрьскому ...

U-PB И PB-PB ИЗОТОПНЫЕ ИССЛЕДОВАНИЯ КИСЛЫХ ВУЛКАНИТОВ ХАУТАВААРСКОЙ ЗЕЛЕНОКАМЕННОЙ СТРУКТУРЫ, ЦЕНТРАЛЬНАЯ КАРЕЛИЯ

Овчинникова Г.В.; Матреничев В.А.; Левченков О.А.; Сергеев С.А.; Яковлева С.З.; Гороховский Б.М. (1994)

U-PB СИСТЕМАТИКА ДОКЕМБРИЙСКИХ КАРБОНАТОВ: РИФЕЙСКАЯ СУХОТУНГУСИНСКАЯ СВИТА ТУРУХАНСКОГО ПОДНЯТИЯ СИБИРИ

Овчинникова Г.В.; Семихатов М.А.; Горохов И.М.; Беляцкий Б.В.; Васильева И.М.; Левский Л.К. (1995)

U-PB-ВОЗРАСТ И ИЗОТОПНАЯ ГЕОХИМИЯ ГЕЛИЯ В ПОРОДАХ И МИНЕРАЛАХ ЛИЦКО-АРАГУБСКОГО ДИОРИТ-ГРАНИТНОГО КОМПЛЕКСА (КОЛЬСКИЙ ПОЛУОСТРОВ)

Ветрин В.Р.; Баянова Т.Б.; Каменский И.Л.; Икорский С.В. (2002)

U-PB-ВОЗРАСТ ФЕДОРОВСКОЙ ТОЛЩИ АЛДАНСКОГО ГРАНУЛИТО-ГНЕЙСОВОГО МЕГАКОМПЛЕКСА (АЛДАНСКИЙ ЩИТ)

Великославинский С.Д.; Котов А.Б.; Сальникова Е.Б.; Глебовицкий В.А.; Ковач В.П.; Загорная Н.Ю.; Беляевский Н.А.; Яковлева С.З.; Федосеенко А.М. (2003)

U-PB-ВОЗРАСТ ЦИРКОНОВ ИЗ ПЛАГИОГРАНИТОВ ПЛАГИОГРАНИТ-АМФИБОЛИТОВОГО КОМПЛЕКСА ГАНЫЧАЛАНСКОГО БЛОКА (ЗАПАД КОРЯКСКОГО НАГОРЬЯ)

Некрасов Г.Е.; Макеев А.Ф. (2003)

U-SERIES DATING OF BONE USING THE DIFFUSION-ADSORPTION MODEL

Pike A.W.G.; Hedges R.E.M.; van Calsteren P. (2002)

U-series dating of bone has suffered problems of reliability since its inception because bone remains an open system with respect to uranium. Commonly applied a priori assumptions of U uptake, such as early uptake or linear ...

U-SERIES DISEQUILIBRIA GENERATED BY PARTIAL MELTING OF SPINEL LHERZOLITE

Landwehr D.; Blundy J.; Chamorro-Perez E.M.; Hill E.; Wood B. (2001)

We have experimentally investigated the effects of crystal chemistry on the partitioning of U and Th between clinopyroxene and anhydrous silicate melt in a wide range of synthetic systems from 1 to 8 GPa and 1330 to 1735°C. ...

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