4 He age discordance and release behavior of a double shell botryoidal hematite from the Schwarzwald, Germany

4 He diffusion in 40 Ar-retentive minerals

4-D evolution of SE Asia's mantle from geological reconstructions and seismic tomography

4-D Variational Assimilation of Mars Global Surveyor Meteorological Observations

4.5-year CMB Power Spectrum from the Cosmic Background Imager

40 Ar / 39 Ar ages of biotite and hornblende from a progressively remetamorphosed basement terrane: their bearing on interpretation of release spectra

40 Ar/ 39 Ar age spectra of some undisturbed terrestrial samples

40 Ar/ 39 Ar studies of deep-sea igneous rocks

40 Ar/ 39 Ar thermochronometry of K-feldspar from the KTB borehole, Germany

40 YEARS OF PULSARS: Millisecond Pulsars, Magnetars and More

400My of Deformation Along Tibet Active Strike Slip Faults

40Ar / 39Ar geochronology constraints on late miocene weathering rates in Minas Gerais, Brazil

40Ar retention in the terrestrial planets

40Ar-39Ar Ages of the Large Impact Structures Kara and Manicouagan and their Relevance to the Cretaceous-Tertiary and the Triassic-Jurassic Boundary

40Ar/39Ar age spectrum analysis of detrital microclines from the southern San Joaquin Basin, California: an approach to determining the thermal evolution of sedimentary basins

40Ar/39Ar Ages vs. Shock Features in Apollo 16 and 17 Samples

40Ar/39Ar dating links Albuquerque Volcanoes to the Pringle Falls excursion and the Geomagnetic Instability Time Scale

40Ar/39Ar dating of 1.0-1.1 Ga magnetizations from the Sa~o Francisco and Kalahari cratons: tectonic implications for Pan-African and Brasiliano mobile belts

40Ar/39Ar dating of a Langhian biotite-rich clay layer in the pelagic sequence of the Cònero Riviera, Ancona, Italy

40Ar/39Ar dating of a tephra layer in the Pliocene Senèze maar lacustrine sequence (French Massif Central): constraint on the age of the Réunion-Matuyama transition and implications on paleoenvironmental archives