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

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

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 ages as a sediment mixing tracer in the Nepal Himalaya

U Th Pb fractionation in Archaean lower continental crust: Implications for terrestrial Pb isotope systematics

U(1)' Dark Matter and R-Parity Violation.

U(1)-invariant special Lagrangian 3-folds I. Nonsingular solutions

U(1)-invariant special Lagrangian 3-folds II. Existence of singular solutions

U(1)-invariant special Lagrangian 3-folds in C^3 and special Lagrangian fibrations

U(1)-invariant special Lagrangian 3-folds. III. Properties of singular solutions

U(g)-finite locally analytic representations

U---Pb dating of calcite concretions from Cambrian black shales and the Phanerozoic time scale

U-238-Th-230-Ra-226 and U-235-Pa-231 disequilibria produced by mantle melting with porous and channel flows

U-Invariants for forms of higher degree

U-max-Statistics

U-Pb ages of uraniferous opals and implications for the history of beryllium, fluorine, and uranium mineralization at Spor Mountain, Utah

U-Pb and 207Pb-206Pb ages of zircons from basaltic eucrites: Implications for early basaltic volcanism on the eucrite parent body

U-Pb dating of columbites: A geochronologic tool to date magmatism and ore deposits

U-Pb dating on single detrital zircon grains from the Triassic Songpan-Ganze flysch (Central China): provenance and tectonic correlations

U-Pb dating on single detrital zircon grains from the Triassic Songpan-Ganze flysch (Central China): provenance and tectonic correlations