Results 91 to 100 of about 6,544,459 (237)

THE AGE OF EARLY COLLISIONAL GRANITOIDS OF WESTERN SANGILEN (SE TUVA): IMPLICATIONS FOR ESTIMATING THE DURATION OF OROGENY AT THE MARGIN OF THE TUVA-MONGOLIAN MASSIF

Геодинамика и тектонофизика
The first U-Pb isotope-geochronological data were obtained on the age of early collisional granitoids of the Matut massif (Western Sangilen, SE Tuva).
D. V. Semenova, V. G. Vladimirov, I. V. Karmysheva, V. A. Yakovlev   +3 more
doaj   +1 more source

Direct dating of hydrothermal tungsten mineralization using in situ wolframite U–Pb chronology by laser ablation ICP-MS

Chemical Geology, 2019
The wolframite series may contain relatively high U and low common Pb contents, and thus has been used for direct U-Pb dating of hydrothermal W mineralization. In this paper, we present in-situ laser ablation-inductively coupled plasma mass spectrometry (
Xiao-Dong Deng, Tao Luo, Jian-wei Li, Zhaochu Hu   +3 more
semanticscholar   +1 more source

Uranium-lead dating method at the Pará-Iso isotope geology laboratory, UFPA, Belém - Brazil

Anais da Academia Brasileira de Ciências, 2007
Analytical procedures for U-Pb isotope dilution analyses at the Pará-Iso isotope geology laboratory of the Federal University of Pará (UFPA) are described in detail. The procedures are applied to zircon, titanite, rutile, apatite, columbite-tantalite and
Robert S. Krymsky, Moacir J.B. Macambira, Jean-Michel Lafon, Gérson S. Estumano   +3 more
doaj   +1 more source

Baoligaomiao Fm U-Pb data

, 2022
Baoligaomiao Fm U-Pb ...
Qiang Ren
core   +1 more source

Spatial and temporal variations in Pb concentrations and isotopic composition in road dust, farmland soil and vegetation in proximity to roads since cessation of use of leaded petrol in the UK [PDF]

, 2011
Results are presented for a study of spatial distributions and temporal trends in concentrations of lead (Pb) from different sources in soil and vegetation of an arable farm in central Scotland in the decade since the use of leaded petrol was terminated.
Scott, E.M., G. MacKinnon, MacKenzie, A.B., E.M. Scott, Duncan, H.J., Cook, G.T., A.B. MacKenzie, Pulford, I.D., G.T. Cook, MacKinnon, G., I.D. Pulford, H.J. Duncan   +11 more
core   +1 more source

Recent advances in in situ U-Pb dating of geological events by laser ablation inductively coupled plasma mass spectrometry

, 2006
LA-ICP-MS is an ideal technique for in situ analysis of a variety of matrices for trace element concentrations at the micron scale. LA-ICP-MS, with a quadrupole mass analyser in this study, can also be used for in situ U–Pb isotope ratio analysis of ...
Jeffries, Teresa E., Fernández Suárez, Javier, Storey, Craig D.   +2 more
core  

Complex Paleozoic magmatic and metamorphic evolution in the Argentera Massif (Western Alps) resolved with U-Pb dating

, 2001
The timing of pre-Alpine magmatism and metamorphism in the Gesso-Stura Terrain (NW Argentera massif, External Crystalline Massifs) has been investigated by U-Pb dating.
Colombo, F., Compagnoni, Roberto, Rubatto, D., Lombardo, D., Schaltegger, U., Schaltegger, Urs, Compagnoni, R., Lombardo, B.   +7 more
core  

U-Pb-Hf isotopic data from detrital zircons in late Carboniferous and Mid-Late Triassic sandstones, and also Carboniferous granites from the Tauride and Anatolide continental units in S Turkey: implications for Tethyan palaeogeography

, 2019
Zircons from Carboniferous sandstones (three samples) and Mid-Late Triassic sandstones (four samples) from the Tauride and Anatolide continental units were analysed for U-Pb-Hf isotopes.
Alastair H. F. Robertson (2807626), Axel Gerdes (2839943), Timur Ustaomer (6902108), Petek Ayda Ustaömer (6902111)   +3 more
core   +1 more source

A short-duration pulse of ductile normal shear on the outer South Tibetan detachment in Bhutan : alternating channel flow and critical taper mechanics of the eastern Himalaya [PDF]

, 2011
In easternmost Bhutan the South Tibetan detachment (STD) is a ductile shear zone that juxtaposes the Radi (or Sakteng) klippe of the Tethyan Sedimentary Series from underlying high-grade Greater Himalayan rocks.
Argles, Tom, Parrish, Randall, Randall Parrish, Arlges, Tom, Jennifer Chambers, Nigel Harris, Matthew Horstwood, Horstwood, Matthew, Harris, Nigel, Tom Argles, Chambers, Jennifer   +10 more
core   +1 more source

Rutile R632 - A New Natural Reference Material for U-Pb and Zr Determination

, 2018
A new natural rutile reference material is presented, suitable for U‐Pb dating and Zr‐in‐rutile thermometry by microbeam methods. U‐Pb dating of rutile R632 using laser ablation ICP‐MS with both magnetic sector field and quadrupole instruments as well as
Axelsson, Emelie, Raith, Michael M, Jonas Pape, Berndt, Jasper, Pape, Jonas, Klaus Mezger, Corfu, Fernando, Raith, Michael M., Axelsson, Emelie,, Jasper Berndt, Fernando Corfu, Axelsson, Emelie Sofia, Emelie Axelsson, Mezger, Klaus, Michael M. Raith   +14 more
core   +1 more source