U Pb ages of angrites

U Pb and 40Ar/39Ar dating of the Miocene fossil track site at Ipolytarnóc (Hungary) and its implications

U Pb and Hf isotopic study of detrital zircons from the Wulashan khondalites: Constraints on the evolution of the Ordos Terrane, Western Block of the North China Craton

U Pb and Lu Hf isotope record of detrital zircon grains from the Limpopo Belt Evidence for crustal recycling at the Hadean to early-Archean transition

U Pb and Lu Hf isotopic constraints on the provenance of Permian detritus in metasedimentary rocks of Southern Chile and Livingston Island, Antarctica

U Pb dating of enamel from the Swartkrans Cave hominid site (South Africa) by MC-ICP-MS

U Pb dating of fossil enamel from the Swartkrans Pleistocene hominid site, South Africa

U Pb dating of speleothems from Sterkfontein Cave, South Africa

U Pb geochronology of the Acatlán Complex and implications for the Paleozoic paleogeography and tectonic evolution of southern Mexico

U Pb SHRIMP dating of zircons from the ore-bearing Kharaelakh intrusion (Talnakh district, Russia)

U Pb SHRIMP geochronology of Th-poor, hydrothermal monazite: An example from the Llallagua tin-porphyry deposit, Bolivia

U Pb SHRIMP geochronology of zircon in garnet peridotite from the Sulu UHP terrane, China: Implications for mantle metasomatism and subduction-zone UHP metamorphism

U Pb zircon age constraints on the Dongwanzi ultramafic mafic body, North China, confirm it is not an Archean ophiolite

U Pb zircon ages as a sediment mixing tracer in the Nepal Himalaya

U Pb zircon dating on the granitic conglomerates of the Hutuo Group: Affinities to the Wutai Granitoids and significance on the tectonic evolution of the Trans-North China Orogen

U Pb zircon geochronology of the end-Permian mass extinction

U Pb, Hf and O isotope evidence for two episodes of fluid-assisted zircon growth in marble-hosted eclogites from the Dabie orogen

U Persei, observations made in 1909-11

U Piscis Austrini--An RR Lyrae Type Variable

U Sco 2010 outburst: observational evidence of an underlying ONeMg white dwarf