Results 71 to 80 of about 2,046 (219)

U-Pb zircon age constraints on late Neoproterozoic glaciation in Tasmania

Geology, 2004
Two new U-Pb dates (sensitive high-resolution ion microprobe on zircon) have an important bearing on the age of the Marinoan (Elatina) glaciation, a presumed global chronostratigraphic marker that has been previously poorly constrained in terms of its numerical age.
Calver, Clive, Black, Lance, Everard, John L., Seymour, David B   +3 more
openaire   +2 more sources

Columbite-Group Minerals from New York Pegmatites: Insights from Isotopic and Geochemical Analyses

Geosciences, 2018
Columbite crystals from niobium-yttrium-fluorine (NYF) pegmatites lacking zircon or containing metamict cyrtolite were analyzed for major and minor elements (Electron Microprobe (EMP)), trace elements (Laser Ablation-Inductively Coupled Plasma-Mass ...
Marian V. Lupulescu, Jeffrey R. Chiarenzelli, Mark E. Pecha, Jared W. Singer, Sean P. Regan   +4 more
doaj   +1 more source

OneDZ: a global detrital zircon database and implications for constructing giant geoscience database [PDF]

Earth System Science Data
The amount of detrital zircon U-Pb geochronology data and Lu-Hf isotopic data has doubled in the past two decades with the continuous improvement of analytical methods, and has developed into the most closely integrated research field in earth science ...
K. Li, X. Hu, R. Chai, J. Yang, W. Xue, Y. Pan, T. Li, C. Fang, A. Ma, H. Huang, H. Huang, Q. Guo, W. Yang, L. Hu, L. Qi, L. Qi, G. Chen, G. Sun, S. Zhang, T. Deng, K. Li, K. Li, J. Sun, B. Gao   +23 more
doaj   +1 more source

A database of detrital zircon U–Pb geochronology and Hf isotopes from the Songpan–Ganzi and Western Qinling terranes

Geoscience Data Journal
Since the advent of detrital geochronology, significant progress has been made in the study of sedimentary sources. The detrital zircon U–Pb age spectrum, especially when combined with zircon Hf isotopes, provides a powerful tool for determining the ...
Yingdi Pan, Xiumian Hu
doaj   +1 more source

Experimental evidence for the preservation of U-Pb isotope ratios in mantle-recycled crustal zircon grains

Scientific Reports, 2018
Zircon of crustal origin found in mantle-derived rocks is of great interest because of the information it may provide about crust recycling and mantle dynamics.
Fernando Bea, Pilar Montero, Jose Francisco Molina Palma   +2 more
doaj   +1 more source

Comment on ‘Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa’

Terra Nova, EarlyView.
Sérgio P. Neves, Alain Vauchez
wiley   +1 more source

Simultaneous determination of zircon U-Pb age and titanium concentration using LA-ICP-MS: Analysis data and crystallization temperature. [PDF]

Data Brief, 2020
Yuguchi T, Ishibashi K, Sakata S, Yokoyama T, Itoh D, Ogita Y, Yagi K, Ohno T.   +7 more
europepmc   +1 more source

U-Pb zircon age for the Nanhua-Sinian boundary

Chinese Science Bulletin, 2005
Chu, X., Todt, W., Zhang, Q., Chen, F., Huang, J.   +4 more
openaire   +3 more sources

Forward Image Registration for Higher Level Interpretation of Zircon Provenance Based on Combined CL, U/Pb Age, and Geochemical Data

Geochemistry, Geophysics, Geosystems
Most detrital zircon studies generate grayscale cathodoluminescence (CL) images, U/Pb dates, and variably extensive trace element concentration data. Yet the combined information contained in these data is rarely used for a higher‐level interpretation of
Marco A. Acevedo Zamora, Balz S. Kamber, John T. Caulfield, Charlotte M. Allen, Justin S. Freeman   +4 more
doaj   +1 more source

Composition and Provenance of Victoria Group Sandstones in Southern North Victoria Land, Antarctica

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.
Three distinct source areas contributed to sandstones of the Victoria Group within the Transantarctic Basin in southern North Victoria Land. During the Permian, quartzose sandstones were derived from erosion of the local Ross Orogen, likely from an uplifted swell in the area of today's Ross Sea, the Ross High.
Martin Elsner, Robert Schöner, Reinhard Gaupp, Andreas Kronz, Benjamin Bomfleur, Joerg W. Schneider, Lothar G. Viereck   +6 more
wiley   +1 more source